Merge remote-tracking branch 'XRPLF/develop' into ximinez/parse-guard

* XRPLF/develop:
  chore: Run clang_tidy_check with `pass_filenames: false` from pre-commit (7800)
  feat: Add delegate filter param for account_tx RPC (6126)
  refactor: Move `jss.h` `include` out of `Indexes.h` (7799)
  test: Add tests for check doxygen style (7795)
  style: Add pre-commit hook to check doxygen style (7794)
  style: Unify style for all Doxygen comments (7776)
  fix: Improve Number addition/subtraction rounding (7369)
  feat: XLS-68: Sponsor, 5887 continuation  (7350)

.cspell.config.yaml

@@ -65,6 +65,7 @@ words:
   - Btrfs
   - Buildx
   - canonicality
+  - canonicalised
   - changespq
   - checkme
   - choco
@@ -279,6 +280,8 @@ words:
   - sles
   - soci
   - socidb
+  - sponsee
+  - sponsees
   - SRPMS
   - sslws
   - statsd
@@ -300,6 +303,7 @@ words:
   - takerpays
   - ters
   - TMEndpointv2
+  - tparam
   - trixie
   - tx
   - txid
@@ -327,6 +331,7 @@ words:
   - unserviced
   - unshareable
   - unshares
+  - unsponsored
   - unsquelch
   - unsquelched
   - unsquelching

.envrc

@@ -0,0 +1 @@
+use flake

.pre-commit-config.yaml

@@ -32,6 +32,11 @@ repos:
         # as standalone translation units, so they have no compile_commands.json
         # entry to lint (verify_headers checks them transitively).
         exclude: '^include/xrpl/protocol_autogen|\.ipp$'
+        # run-clang-tidy --fix may edit headers included by files it is not run on,
+        # so pre-commit must not split the files across parallel hook invocations.
+        # The script determines the staged files itself and lets run-clang-tidy
+        # handle parallelism internally.
+        pass_filenames: false
       - id: fix-include-style
         name: fix include style
         entry: ./bin/pre-commit/fix_include_style.py
@@ -43,6 +48,11 @@ repos:
         language: python
         entry: ./bin/pre-commit/fix_pragma_once.py
         files: \.(h|hpp)$
+      - id: check-doxygen-style
+        name: check Doxygen comment style
+        entry: ./bin/pre-commit/check_doxygen_style.py
+        language: python
+        types_or: [c++, c]
 
   - repo: https://github.com/pre-commit/mirrors-clang-format
     rev: dd18dad857d6133e90bbe478f4f2f22ec0030269 # frozen: v22.1.5

API-CHANGELOG.md

@@ -28,6 +28,9 @@ This section contains changes targeting a future version.
 
 ### Additions
 
+- `account_tx`: Added an optional `delegate` request object to filter delegated transactions. The object requires `delegate_filter`, which must be either `actor` for transactions owned by the requested account but signed by another account, or `authorizer` for transactions signed by the requested account on behalf of another account. The optional `counter_party` account narrows the results to a specific signer/delegate for `actor` or a specific owner/delegator for `authorizer`. Malformed `delegate`, `delegate_filter`, and `counter_party` values return standard invalid field errors, and invalid account IDs return `actMalformed`.
+  When paginating delegate-filtered queries, a marker from a delegate-filtered query includes a `delegate` flag and is only valid for follow-up requests that also supply `delegate` (mixing marker conventions returns `invalidParams`). Because filtering is applied after the ledger scan, a page may contain fewer results than `limit` (possibly zero) while still returning a marker, so callers must continue until no marker is present.
+
 - `ledger_entry`, `account_objects`: The `Delegate` ledger entry now includes an optional `DestinationNode` field, which stores the index into the authorized account's owner directory. This field is present on entries created after bidirectional directory tracking was introduced and may appear in RPC responses for those entries. ([#6681](https://github.com/XRPLF/rippled/pull/6681))
 
 - `server_definitions`: Added the following new sections to the response ([#6321](https://github.com/XRPLF/rippled/pull/6321)):

bin/pre-commit/check_doxygen_style.py

@@ -0,0 +1,440 @@
+#!/usr/bin/env python3
+"""
+Check C++ Doxygen comment style.
+
+Enforces the house convention for documentation comments:
+
+  * Use ``/** ... */`` blocks, not ``///``, ``//!`` or ``/*! ... */``; a plain
+    ``/* ... */`` that contains Doxygen commands is a doc comment missing its
+    second star. Trailing member-after comments use ``///<`` (not ``//!<``,
+    ``/*!< ... */`` or ``/**< ... */`` -- the block forms get reflowed and
+    mis-attached by clang-format on packed enum values, the line form does not).
+  * ``/**`` sits alone on its line; the closing ``*/`` sits alone on its line.
+  * Every content line is prefixed with `` * `` (no bare-indented continuation).
+  * The first content line is flush (not over-indented).
+  * Doxygen commands use the ``@cmd`` form, not ``\\cmd``.
+  * Use ``@return`` / ``@throws`` rather than prose ``Returns:`` / ``Throws:``.
+  * A plain ``//`` comment carrying a block-level ``@command`` (``@param``,
+    ``@return``, ``@see``, ...) is documentation and must be a ``/** ... */``
+    block (Doxygen ignores ``//``).
+  * Use canonical command spellings: ``@return`` (not ``@returns``),
+    ``@throws`` (not ``@throw``), ``@see`` (not ``@sa``).
+  * Order block tags ``@tparam`` -> ``@param`` -> ``@return``. (Whether
+    ``@param`` order matches the signature is not checked here -- too fragile to
+    parse; Doxygen's WARN_IF_DOC_ERROR covers name mismatches.)
+  * One-liners are expanded to three lines, EXCEPT bare markers ``@{`` / ``@}``
+    / ``@cond [label]`` / ``@endcond`` / ``@file [name]`` which stay on one line.
+
+Left intentionally alone (recognized, valid Doxygen that is not this style's
+concern):
+
+  * ``///<`` trailing "member-after" comments (the house form).
+  * Divider lines made only of slashes (``//////////``).
+  * Plain ``/* ... */`` (non-Doxygen) comments.
+
+Usage:
+    check_doxygen_style.py [FILE ...]      # explicit files
+    check_doxygen_style.py                 # default: src/ and include/ trees
+
+Exit status is non-zero if any violation is found.
+"""
+
+import argparse
+import re
+import sys
+from collections.abc import Iterable, Iterator
+from dataclasses import dataclass
+from enum import Enum
+from pathlib import Path
+
+
+class Category(Enum):
+    """A kind of style violation: a printed ``label`` and its ``description``.
+
+    The description is the default message; a few categories whose wording
+    depends on the offending text (see ``Finding.detail``) override it.
+    """
+
+    def __init__(self, label: str, description: str) -> None:
+        self.label = label
+        self.description = description
+
+    BACKSLASH_COMMAND = ("backslash-command", "use the @cmd form, not \\cmd")
+    WRONG_COMMAND = ("wrong-command", "use the canonical command spelling")
+    TRIPLE_SLASH = ("triple-slash", "use a /** ... */ block instead of ///")
+    QT_MEMBER = ("qt-member", "use ///< instead of //!<")
+    QT_LINE = ("qt-line", "use a /** ... */ block instead of //!")
+    BLOCK_MEMBER = ("block-member", "use ///< instead of /**<")
+    QT_BLOCK_MEMBER = ("qt-block-member", "use ///< instead of /*!<")
+    DOC_IN_LINE_COMMENT = (
+        "doc-in-line-comment",
+        "use a /** ... */ block for documentation, not //",
+    )
+    QT_COMMENT = ("qt-comment", "use /** instead of /*!")
+    SINGLE_LINE_BLOCK = (
+        "single-line-block",
+        "expand one-line /** ... */ to a multi-line block "
+        "(markers @{ @} @cond @endcond @file may stay)",
+    )
+    TEXT_ON_OPENER = ("text-on-opener", "move text off the /** opener line")
+    BARE_CONTINUATION = ("bare-continuation", 'prefix continuation lines with " * "')
+    OVER_INDENTED = ("over-indented", "first content line is over-indented")
+    OVER_INDENTED_TAG = (
+        "over-indented-tag",
+        'Doxygen tag over-indented; use a single space after "*"',
+    )
+    COMBINED_MARKER = (
+        "combined-marker",
+        "scope marker @{ / @} should be its own single-line /** @{ */ block",
+    )
+    PROSE_LABEL = ("prose-label", "use a Doxygen tag instead of a prose label")
+    CONTENT_ON_CLOSER = ("content-on-closer", "move content off the closing */ line")
+    PLAIN_BLOCK_DOC = (
+        "plain-block-doc",
+        "documentation comment must open with /** not /*",
+    )
+    TAG_ORDER = (
+        "tag-order",
+        "block tags out of order; expected @tparam, then @param, then @return",
+    )
+
+
+@dataclass(frozen=True)
+class Finding:
+    """A single style violation at a 1-based line number.
+
+    ``detail`` overrides the category's default description when the message
+    depends on the offending text (e.g. which command was misspelled).
+    """
+
+    line: int
+    category: Category
+    detail: str | None = None
+
+    @property
+    def message(self) -> str:
+        return self.detail if self.detail is not None else self.category.description
+
+
+DEFAULT_ROOTS = ("src", "include")
+EXTS = {".h", ".hpp", ".cpp", ".ipp", ".cxx", ".cc"}
+
+# Every Doxygen command we recognize when written with a backslash (\cmd).
+_ALL_COMMANDS = (
+    "brief|param|tparam|return|returns|retval|note|warning|pre|post|see|sa|ref|"
+    "throw|throws|exception|deprecated|details|code|endcode|verbatim|endverbatim|"
+    "li|arg|c|internal|since|todo|attention|remark|remarks|ingroup|defgroup"
+)
+# Block-level tags whose over-indentation we flag inside a block body.
+_BLOCK_TAGS = (
+    "param|tparam|returns?|retval|brief|throws?|note|warning|"
+    "pre|post|see|sa|details|deprecated"
+)
+# Tags that, appearing anywhere in a comment, mark it as documentation.
+_ANY_DOC_TAGS = (
+    "param|tparam|returns?|retval|brief|throws?|note|warning|pre|post|see|sa"
+)
+# Tags that make a plain // comment a mis-styled doc comment.
+_LINE_DOC_TAGS = "brief|param|tparam|returns?|retval|throws?|note|see|pre|post"
+
+# \cmd that should be @cmd.
+RE_BACKSLASH_CMD = re.compile(r"\\(" + _ALL_COMMANDS + r")\b")
+# Bare markers that may legitimately stay on a single line.
+RE_MARKER = re.compile(r"^@(\{|\}|cond(\s.*)?|endcond|file(\s.*)?)$")
+# Prose section labels that should be Doxygen tags.
+RE_PROSE_LABEL = re.compile(r"^\*\s(Returns|Throws|Exceptions):\s*$")
+# An over-indented block tag: "*" followed by 2+ spaces then the tag.
+RE_OVERINDENTED_TAG = re.compile(r"^\*\s{2,}@(" + _BLOCK_TAGS + r")\b")
+# Any documentation tag (used to spot a doc comment hiding in a plain /* */).
+RE_ANY_DOC_TAG = re.compile(r"@(" + _ANY_DOC_TAGS + r")\b")
+# A documentation tag inside a // comment.
+RE_LINE_DOC_TAG = re.compile(r"@(" + _LINE_DOC_TAGS + r")\b")
+# Order-relevant tags, for the @tparam -> @param -> @return ordering check.
+RE_ORDER_TAG = re.compile(r"^\*\s*@(param|tparam|returns?|retval)\b")
+# First content line indented by 2+ spaces after the "*".
+RE_FIRST_OVERINDENT = re.compile(r"^\s*\*\s{2,}\S")
+# A scope marker @{ / @} sharing a comment with other text.
+RE_COMBINED_MARKER = re.compile(r"^\*\s*@[{}]\s*$")
+
+# Non-canonical command spellings -> the house spelling (bare command names).
+# Used both to flag a wrong @form and to suggest the right @form for a \wrong.
+CANONICAL_COMMAND = {"returns": "return", "throw": "throws", "sa": "see"}
+WRONG_SPELLINGS = [
+    (re.compile(rf"@{wrong}\b"), f"@{right}")
+    for wrong, right in CANONICAL_COMMAND.items()
+]
+
+# Order block tags should appear in; a body out of this order is a violation.
+EXPECTED_TAG_ORDER = ("tparam", "param", "return")
+
+
+def is_doxy_open(stripped: str) -> bool:
+    """True for a line-start Doxygen block opener we should normalize."""
+    if stripped.startswith("/*!"):  # Qt-style Doxygen
+        return not stripped.startswith("/*!<")  # member-after, leave inline
+    return (
+        stripped.startswith("/**")
+        and not stripped.startswith("/***")
+        and not stripped.startswith("/**/")
+        and not stripped.startswith("/**<")
+    )
+
+
+def _flag_commands(raw_line: str, stripped: str, index: int) -> list[Finding]:
+    """Flag \\cmd and misspelled @cmd on a comment line (opener, body, or closer)."""
+    if not stripped.startswith(("*", "//", "/*")):
+        return []
+    findings: list[Finding] = []
+    backslash = RE_BACKSLASH_CMD.search(raw_line)
+    if backslash:
+        command = backslash.group(1)
+        canonical = CANONICAL_COMMAND.get(command, command)
+        findings.append(
+            Finding(
+                index + 1,
+                Category.BACKSLASH_COMMAND,
+                f"use @{canonical} instead of \\{command}",
+            )
+        )
+    for pattern, replacement in WRONG_SPELLINGS:
+        wrong = pattern.search(raw_line)
+        if wrong:
+            findings.append(
+                Finding(
+                    index + 1,
+                    Category.WRONG_COMMAND,
+                    f"use {replacement} instead of {wrong.group(0)}",
+                )
+            )
+    return findings
+
+
+def _flag_line_comment(raw_line: str, stripped: str, index: int) -> Finding | None:
+    """Return the finding for a single-line comment form (///, //!, /**<, ...), else None."""
+    if stripped.startswith("///") and not stripped.startswith(("////", "///<")):
+        return Finding(index + 1, Category.TRIPLE_SLASH)
+    if "//!<" in raw_line:
+        return Finding(index + 1, Category.QT_MEMBER)
+    if stripped.startswith("//!"):
+        return Finding(index + 1, Category.QT_LINE)
+    if "/**<" in raw_line:
+        return Finding(index + 1, Category.BLOCK_MEMBER)
+    if "/*!<" in raw_line:
+        return Finding(index + 1, Category.QT_BLOCK_MEMBER)
+    if stripped.startswith("//") and RE_LINE_DOC_TAG.search(stripped):
+        return Finding(index + 1, Category.DOC_IN_LINE_COMMENT)
+    return None
+
+
+def _flag_single_line_block(stripped: str, line_no: int, is_qt: bool) -> list[Finding]:
+    """Findings for a whole /** ... */ or /*! ... */ block on one line."""
+    inner = re.sub(r"^/\*[*!]", "", stripped)
+    inner = re.sub(r"\*/\s*$", "", inner).strip()
+    findings: list[Finding] = []
+    if is_qt:
+        findings.append(Finding(line_no, Category.QT_COMMENT))
+    if inner and not RE_MARKER.match(inner):
+        findings.append(Finding(line_no, Category.SINGLE_LINE_BLOCK))
+    return findings
+
+
+def _canonical_order_tag(body: str) -> str | None:
+    """The order-relevant tag (tparam/param/return) a body line opens with, if any."""
+    match = RE_ORDER_TAG.match(body)
+    if match is None:
+        return None
+    command = match.group(1)
+    return "return" if command in ("return", "returns", "retval") else command
+
+
+def _flag_body_line(
+    body_line: str, line_no: int, is_first_content: bool
+) -> list[Finding]:
+    """Findings for one interior line of a multi-line block."""
+    body = body_line.strip()
+    findings: list[Finding] = []
+    if body and not body.startswith("*"):
+        findings.append(Finding(line_no, Category.BARE_CONTINUATION))
+    if body.startswith("*"):
+        if is_first_content and RE_FIRST_OVERINDENT.match(body_line):
+            findings.append(Finding(line_no, Category.OVER_INDENTED))
+        if RE_OVERINDENTED_TAG.match(body):
+            findings.append(Finding(line_no, Category.OVER_INDENTED_TAG))
+        if RE_COMBINED_MARKER.match(body):
+            findings.append(Finding(line_no, Category.COMBINED_MARKER))
+        label = RE_PROSE_LABEL.match(body)
+        if label:
+            suggested_tag = "@return" if label.group(1) == "Returns" else "@throws"
+            findings.append(
+                Finding(
+                    line_no,
+                    Category.PROSE_LABEL,
+                    f'use {suggested_tag} instead of prose "{label.group(1)}:"',
+                )
+            )
+    return findings
+
+
+def _flag_closer(closer_line: str, line_no: int) -> list[Finding]:
+    """Findings for content sharing the closing */ line."""
+    before = closer_line[: closer_line.index("*/")].strip()
+    if before and before != "*":
+        return [Finding(line_no, Category.CONTENT_ON_CLOSER)]
+    return []
+
+
+def _flag_tag_order(first_tag_line: dict[str, int]) -> list[Finding]:
+    """One finding if the present block tags are not in EXPECTED_TAG_ORDER."""
+    tag_lines = [
+        first_tag_line[tag] for tag in EXPECTED_TAG_ORDER if tag in first_tag_line
+    ]
+    if tag_lines != sorted(tag_lines):
+        return [Finding(min(tag_lines), Category.TAG_ORDER)]
+    return []
+
+
+def _flag_doxy_block(lines: list[str], start: int) -> tuple[int, list[Finding]]:
+    """Handle a /** or /*! block opening at ``start``; return (next index, findings)."""
+    raw_line = lines[start]
+    stripped = raw_line.lstrip()
+    open_pos = raw_line.index("/*")
+    is_qt = stripped.startswith("/*!")
+
+    # A whole block on one line: /** ... */.
+    if "*/" in raw_line[open_pos + 2 :]:
+        return start + 1, _flag_single_line_block(stripped, start + 1, is_qt)
+
+    # Multi-line block: opener, then scan the body to the closer.
+    findings: list[Finding] = []
+    if is_qt:
+        findings.append(Finding(start + 1, Category.QT_COMMENT))
+    if raw_line[open_pos + 3 :].strip():
+        findings.append(Finding(start + 1, Category.TEXT_ON_OPENER))
+
+    line_count = len(lines)
+    cursor = start + 1
+    is_first_content = True
+    first_tag_line: dict[str, int] = {}  # canonical tag -> 1-based first line
+    while cursor < line_count and "*/" not in lines[cursor]:
+        body_line = lines[cursor]
+        body = body_line.strip()
+        findings.extend(_flag_commands(body_line, body, cursor))
+        tag = _canonical_order_tag(body)
+        if tag is not None:
+            first_tag_line.setdefault(tag, cursor + 1)
+        findings.extend(_flag_body_line(body_line, cursor + 1, is_first_content))
+        if body.startswith("*"):
+            is_first_content = False
+        cursor += 1
+
+    if cursor < line_count:
+        closer_line = lines[cursor]
+        findings.extend(_flag_commands(closer_line, closer_line.strip(), cursor))
+        findings.extend(_flag_closer(closer_line, cursor + 1))
+    findings.extend(_flag_tag_order(first_tag_line))
+
+    return cursor + 1, findings
+
+
+def _flag_plain_block(lines: list[str], start: int) -> tuple[int, list[Finding]]:
+    """Handle a line-start plain /* ... */ block; return (next index, findings).
+
+    Only flagged when it hides a documentation command (a missing second star).
+    """
+    line_count = len(lines)
+    cursor = start
+    while cursor < line_count and "*/" not in lines[cursor]:
+        cursor += 1
+    findings: list[Finding] = []
+    # The opener (start) is command-checked by check_file; check the rest here.
+    for i in range(start + 1, min(cursor + 1, line_count)):
+        findings.extend(_flag_commands(lines[i], lines[i].strip(), i))
+    block_text = "\n".join(
+        lines[start : cursor + 1] if cursor < line_count else lines[start:]
+    )
+    if RE_ANY_DOC_TAG.search(block_text):
+        findings.append(Finding(start + 1, Category.PLAIN_BLOCK_DOC))
+    next_index = cursor + 1 if cursor < line_count else line_count
+    return next_index, findings
+
+
+def check_source(text: str) -> list[Finding]:
+    """Return all style violations found in the given source text."""
+    lines = text.split("\n")
+    findings: list[Finding] = []
+    line_count = len(lines)
+    index = 0
+    in_plain_block = False  # inside a mid-line, non-Doxygen /* ... */
+    while index < line_count:
+        raw_line = lines[index]
+        stripped = raw_line.lstrip()
+
+        # Skip the interior of a plain block opened on an earlier line.
+        if in_plain_block:
+            in_plain_block = "*/" not in raw_line
+            index += 1
+            continue
+
+        findings.extend(_flag_commands(raw_line, stripped, index))
+
+        line_finding = _flag_line_comment(raw_line, stripped, index)
+        if line_finding is not None:
+            findings.append(line_finding)
+            index += 1
+        elif is_doxy_open(stripped):
+            index, block_findings = _flag_doxy_block(lines, index)
+            findings.extend(block_findings)
+        elif stripped.startswith("/*"):
+            index, block_findings = _flag_plain_block(lines, index)
+            findings.extend(block_findings)
+        else:
+            # A /* that opens mid-line without closing starts a plain block.
+            if "/*" in raw_line and not stripped.startswith("//"):
+                if "*/" not in raw_line[raw_line.index("/*") + 2 :]:
+                    in_plain_block = True
+            index += 1
+    return findings
+
+
+def check_file(path: Path) -> list[Finding]:
+    """Return all style violations found in one file."""
+    return check_source(path.read_text(encoding="utf-8"))
+
+
+def iter_files(paths: Iterable[str]) -> Iterator[Path]:
+    """Yield every C++ source file among the given files and directories."""
+    for raw_path in paths:
+        path = Path(raw_path)
+        if path.is_dir():
+            for candidate in path.rglob("*"):
+                if candidate.is_file() and candidate.suffix in EXTS:
+                    yield candidate
+        elif path.suffix in EXTS:
+            yield path
+
+
+def main() -> int:
+    parser = argparse.ArgumentParser(description="Check Doxygen comment style.")
+    parser.add_argument(
+        "files", nargs="*", help="files or directories (default: src/ include/)"
+    )
+    parser.add_argument(
+        "-q", "--quiet", action="store_true", help="only print the summary count"
+    )
+    args = parser.parse_args()
+    roots = args.files or [root for root in DEFAULT_ROOTS if Path(root).is_dir()]
+
+    total = 0
+    for path in sorted(set(iter_files(roots)), key=str):
+        for finding in check_file(path):
+            total += 1
+            if not args.quiet:
+                print(
+                    f"{path}:{finding.line}: {finding.category.label}: {finding.message}"
+                )
+    print(f"\n{total} doxygen-style violation(s)", file=sys.stderr)
+    return 1 if total else 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())

bin/pre-commit/clang_tidy_check.py

@@ -1,27 +1,46 @@
 #!/usr/bin/env python3
-"""Pre-commit hook that runs clang-tidy on changed files using run-clang-tidy.
+"""Pre-commit hook that runs clang-tidy on staged files using run-clang-tidy.
 
-The set of files is chosen by pre-commit (see .pre-commit-config.yaml), which
-filters to C/C++ sources and excludes `.ipp` fragments. Headers are linted
-directly: the `verify_headers` build option (ON by default) compiles every
-`.h`/`.hpp` on its own, so each header is the main file of its own
-compile_commands.json entry and run-clang-tidy can analyse it just like a
-`.cpp`.
+The script determines the staged files itself (see `pass_filenames: false` in
+.pre-commit-config.yaml) so run-clang-tidy is run once and handles parallelism
+internally: pre-commit would otherwise split the files across parallel hook
+invocations that race when fixes edit a shared header.
+
+Fixes are collected with `-export-fixes` and applied by clang-apply-replacements
+in a separate step rather than with run-clang-tidy's `-fix`. The `add_module`
+build isolates each module's headers behind a per-module symlink directory
+(build/modules/<module>/...), so a header reachable from several translation
+units is referenced through different paths that all resolve to the same source
+file. clang-apply-replacements deduplicates identical replacements by their
+literal path, so those paths must be canonicalised to the real source path
+first; otherwise the same fix is applied once per path and corrupts the header.
 """
 
 from __future__ import annotations
 
 import os
+import re
 import shutil
 import subprocess
 import sys
+import tempfile
 from pathlib import Path
 
 CLANG_TIDY_VERSION = 22
 
+# Extensions run-clang-tidy can analyse: `.cpp` translation units and, thanks to
+# the `verify_headers` build option, `.h`/`.hpp` headers (each has its own
+# compile_commands.json entry). `.ipp` fragments have no entry and are skipped.
+TIDY_EXTENSIONS = {".cpp", ".h", ".hpp"}
 
-def find_run_clang_tidy() -> str | None:
-    for candidate in (f"run-clang-tidy-{CLANG_TIDY_VERSION}", "run-clang-tidy"):
+# A single-quoted `FilePath:` entry in an -export-fixes YAML file, allowing the
+# `- ` marker that precedes it inside a `Replacements:` sequence. clang-tidy
+# emits paths single-quoted and doubles any embedded quote per YAML rules.
+FILEPATH_RE = re.compile(r"^(\s*(?:-\s+)?FilePath:\s*)'((?:[^']|'')*)'\s*$")
+
+
+def find_tool(name: str) -> str | None:
+    for candidate in (f"{name}-{CLANG_TIDY_VERSION}", name):
         if path := shutil.which(candidate):
             return path
     return None
@@ -35,23 +54,43 @@ def find_build_dir(repo_root: Path) -> Path | None:
     return None
 
 
+def staged_files(repo_root: Path) -> list[Path]:
+    """Return absolute paths of staged, lint-able C/C++ files.
+
+    `--diff-filter=d` excludes deletions so we never lint a removed file.
+    """
+    output = subprocess.check_output(
+        ["git", "diff", "--staged", "--name-only", "--diff-filter=d", "--"]
+        + [f"*{ext}" for ext in TIDY_EXTENSIONS],
+        text=True,
+        cwd=repo_root,
+    )
+    return [repo_root / rel for rel in output.splitlines() if rel]
+
+
+def canonicalize_fix_paths(fixes_dir: Path) -> None:
+    """Rewrite every `FilePath` in the exported fixes to its real source path.
+
+    A header included through a module's isolation symlink is recorded under that
+    symlink's path; collapsing all paths to the same real file lets
+    clang-apply-replacements recognise the per-translation-unit duplicates and
+    apply each fix once.
+    """
+    for yaml in fixes_dir.glob("*.yaml"):
+        lines = []
+        for line in yaml.read_text().splitlines():
+            if m := FILEPATH_RE.match(line):
+                path = m.group(2).replace("''", "'")
+                real = os.path.realpath(path).replace("'", "''")
+                line = f"{m.group(1)}'{real}'"
+            lines.append(line)
+        yaml.write_text("\n".join(lines) + "\n")
+
+
 def main():
     if not os.environ.get("TIDY"):
         return 0
 
-    files = sys.argv[1:]
-    if not files:
-        return 0
-
-    run_clang_tidy = find_run_clang_tidy()
-    if not run_clang_tidy:
-        print(
-            f"clang-tidy check failed: TIDY is enabled but neither "
-            f"'run-clang-tidy-{CLANG_TIDY_VERSION}' nor 'run-clang-tidy' was found in PATH.",
-            file=sys.stderr,
-        )
-        return 1
-
     repo_root = Path(
         subprocess.check_output(
             ["git", "rev-parse", "--show-toplevel"],
@@ -59,6 +98,29 @@ def main():
             text=True,
         ).strip()
     )
+
+    files = staged_files(repo_root)
+    if not files:
+        return 0
+
+    run_clang_tidy = find_tool("run-clang-tidy")
+    clang_apply_replacements = find_tool("clang-apply-replacements")
+    missing = [
+        name
+        for name, path in (
+            ("run-clang-tidy", run_clang_tidy),
+            ("clang-apply-replacements", clang_apply_replacements),
+        )
+        if not path
+    ]
+    if missing:
+        print(
+            f"clang-tidy check failed: TIDY is enabled but {' and '.join(missing)} "
+            f"was not found in PATH (tried the '-{CLANG_TIDY_VERSION}' suffix too).",
+            file=sys.stderr,
+        )
+        return 1
+
     build_dir = find_build_dir(repo_root)
     if not build_dir:
         print(
@@ -68,11 +130,23 @@ def main():
         )
         return 1
 
-    result = subprocess.run(
-        [run_clang_tidy, "-quiet", "-p", str(build_dir), "-fix", "-allow-no-checks"]
-        + files
-    )
-    return result.returncode
+    with tempfile.TemporaryDirectory() as fixes_dir:
+        result = subprocess.run(
+            [
+                run_clang_tidy,
+                "-quiet",
+                "-p",
+                build_dir,
+                "-export-fixes",
+                fixes_dir,
+                "-allow-no-checks",
+            ]
+            + files
+        )
+        canonicalize_fix_paths(Path(fixes_dir))
+        applied = subprocess.run([clang_apply_replacements, fixes_dir])
+
+    return result.returncode or applied.returncode
 
 
 if __name__ == "__main__":

bin/pre-commit/test_check_doxygen_style.py

@@ -0,0 +1,406 @@
+#!/usr/bin/env python3
+"""
+Tests for check_doxygen_style.py.
+
+Run directly (no test framework needed):
+    ./bin/pre-commit/test_check_doxygen_style.py
+or under pytest:
+    pytest bin/pre-commit/test_check_doxygen_style.py
+"""
+
+import sys
+import textwrap
+
+from check_doxygen_style import Finding, check_source
+
+
+def findings_for(text: str) -> list[Finding]:
+    """Return the style violations for the given source text.
+
+    The text is dedented and its leading newline stripped, so fixtures can be
+    written as indented triple-quoted here-docs while keeping honest 1-based
+    line numbers.
+    """
+    text = textwrap.dedent(text).lstrip("\n")
+    return check_source(text)
+
+
+def labels_for(text: str) -> list[str]:
+    return [f.category.label for f in findings_for(text)]
+
+
+def messages_for(text: str) -> list[str]:
+    return [f.message for f in findings_for(text)]
+
+
+# --- well-formed input produces nothing -------------------------------------
+
+
+def test_clean_block_ok() -> None:
+    code = """
+    /**
+     * Brief.
+     *
+     * @tparam T a type
+     * @param x the x
+     * @return the result
+     */
+    """
+    assert findings_for(code) == []
+
+
+def test_blank_lines_inside_block_ok() -> None:
+    code = """
+    /**
+     * a
+     *
+     * b
+     */
+    """
+    assert findings_for(code) == []
+
+
+def test_member_and_divider_allowed() -> None:
+    assert findings_for("int x;  ///< ok member\n") == []
+    assert findings_for("//////////\n") == []
+    assert findings_for("//// text\n") == []
+
+
+# --- line-comment forms ------------------------------------------------------
+
+
+def test_triple_slash() -> None:
+    code = "/// doc\n"
+    assert labels_for(code) == ["triple-slash"]
+
+
+def test_qt_line() -> None:
+    code = "//! doc\n"
+    assert labels_for(code) == ["qt-line"]
+
+
+def test_qt_member() -> None:
+    code = "int x;  //!< doc\n"
+    assert labels_for(code) == ["qt-member"]
+
+
+def test_block_member() -> None:
+    code = "int x;  /**< doc */\n"
+    assert labels_for(code) == ["block-member"]
+
+
+def test_qt_block_member() -> None:
+    code = "int x;  /*!< doc */\n"
+    assert labels_for(code) == ["qt-block-member"]
+
+
+def test_doc_in_line_comment() -> None:
+    code = "// @param x\n"
+    assert labels_for(code) == ["doc-in-line-comment"]
+
+
+# --- block forms -------------------------------------------------------------
+
+
+def test_qt_comment() -> None:
+    code = """
+    /*!
+     * brief
+     */
+    """
+    assert labels_for(code) == ["qt-comment"]
+
+
+def test_qt_comment_single_line() -> None:
+    # /*! ... */ on one line -> qt-comment (plus single-line-block)
+    code = "/*! brief */\n"
+    assert labels_for(code) == ["qt-comment", "single-line-block"]
+
+
+def test_single_line_block() -> None:
+    code = "/** brief */\n"
+    assert labels_for(code) == ["single-line-block"]
+
+
+def test_single_line_markers_allowed() -> None:
+    for marker in ("@{", "@}", "@cond LABEL", "@endcond", "@file foo.h"):
+        code = f"/** {marker} */\n"
+        assert findings_for(code) == [], marker
+
+
+def test_text_on_opener() -> None:
+    code = """
+    /** text here
+     * more
+     */
+    """
+    assert labels_for(code) == ["text-on-opener"]
+
+
+def test_bare_continuation() -> None:
+    code = """
+    /**
+     * a
+       bare line
+     */
+    """
+    assert labels_for(code) == ["bare-continuation"]
+
+
+def test_over_indented_first_line() -> None:
+    code = """
+    /**
+     *   over
+     */
+    """
+    assert labels_for(code) == ["over-indented"]
+
+
+def test_over_indented_tag() -> None:
+    # a flush first line consumes "first content", isolating the tag check
+    code = """
+    /**
+     * brief
+     *   @param x
+     */
+    """
+    assert labels_for(code) == ["over-indented-tag"]
+
+
+def test_combined_marker() -> None:
+    code = """
+    /**
+     * @{
+     */
+    """
+    assert labels_for(code) == ["combined-marker"]
+
+
+def test_prose_label() -> None:
+    for word in ("Returns", "Throws", "Exceptions"):
+        code = f"""
+        /**
+         * {word}:
+         */
+        """
+        assert labels_for(code) == ["prose-label"], word
+
+
+def test_content_on_closer() -> None:
+    code = """
+    /**
+     * a
+     * b */
+    """
+    assert labels_for(code) == ["content-on-closer"]
+
+
+def test_plain_block_doc() -> None:
+    assert labels_for("/* @param x */\n") == ["plain-block-doc"]
+    assert findings_for("/* just an ordinary note */\n") == []
+
+
+def test_tag_order() -> None:
+    out_of_order = """
+    /**
+     * @param x
+     * @tparam T
+     */
+    """
+    assert labels_for(out_of_order) == ["tag-order"]
+
+    correct = """
+    /**
+     * @tparam T
+     * @param x
+     * @return r
+     */
+    """
+    assert findings_for(correct) == []
+
+    single = """
+    /**
+     * @param x
+     */
+    """
+    assert findings_for(single) == []  # single tag: never out of order
+
+
+# --- command spelling (must work on body/closer lines, not just the opener) --
+
+
+def test_backslash_command_on_body_line() -> None:
+    code = r"""
+    /**
+     * \brief x
+     */
+    """
+    assert labels_for(code) == ["backslash-command"]
+
+
+def test_backslash_command_suggests_canonical_spelling() -> None:
+    # a backslash + non-canonical spelling is fixed in one pass, not two:
+    # \sa -> @see (not @sa), \returns -> @return (not @returns)
+    sa = r"""
+    /**
+     * \sa other
+     */
+    """
+    assert messages_for(sa) == [r"use @see instead of \sa"]
+
+    returns = r"""
+    /**
+     * \returns x
+     */
+    """
+    assert messages_for(returns) == [r"use @return instead of \returns"]
+
+
+def test_wrong_command_on_body_line() -> None:
+    code = """
+    /**
+     * @returns x
+     */
+    """
+    assert labels_for(code) == ["wrong-command"]
+
+
+def test_body_line_commands_regression() -> None:
+    # regression: these live on body lines of a multi-line block
+    code = r"""
+    /**
+     * @returns bad
+     * @throw ex
+     * @sa other
+     * \param y
+     */
+    """
+    assert labels_for(code) == [
+        "wrong-command",
+        "wrong-command",
+        "wrong-command",
+        "backslash-command",
+    ]
+
+
+def test_command_on_closer_line() -> None:
+    code = """
+    /**
+     * a
+     * @sa b */
+    """
+    assert labels_for(code) == ["wrong-command", "content-on-closer"]
+
+
+def test_no_double_count_across_opener_body_closer() -> None:
+    code = """
+    /** @returns opener
+     * @throw body
+     * @sa closer */
+    """
+    assert labels_for(code).count("wrong-command") == 3
+
+
+def test_code_with_word_allowed() -> None:
+    # @code{.cpp} is valid Doxygen and must not be flagged
+    code = """
+    /**
+     * @code{.cpp}
+     * int x;
+     * @endcode
+     */
+    """
+    assert findings_for(code) == []
+
+
+# --- rendered message text ---------------------------------------------------
+
+
+def test_message_uses_category_description() -> None:
+    # a static category renders its default description
+    code = "/// doc\n"
+    assert messages_for(code) == ["use a /** ... */ block instead of ///"]
+
+
+def test_message_detail_overrides() -> None:
+    # dynamic categories render the offending text via Finding.detail
+    backslash = r"""
+    /**
+     * \param y
+     */
+    """
+    assert messages_for(backslash) == [r"use @param instead of \param"]
+
+    wrong = """
+    /**
+     * @returns x
+     */
+    """
+    assert messages_for(wrong) == ["use @return instead of @returns"]
+
+    prose = """
+    /**
+     * Throws:
+     */
+    """
+    assert messages_for(prose) == ['use @throws instead of prose "Throws:"']
+
+
+# --- robustness --------------------------------------------------------------
+
+
+def test_empty_file_no_crash() -> None:
+    assert findings_for("") == []
+
+
+def test_mid_line_plain_block_skipped() -> None:
+    # a /* opened mid-line (after code) and spanning lines is skipped, so its
+    # comment-like contents are not analyzed
+    code = """
+    int x = 0;  /* note: @returns is not a real tag here
+     * @param also not real
+     */
+    int y = 0;
+    """
+    assert findings_for(code) == []
+
+
+def test_unclosed_block_scanned_to_eof() -> None:
+    # an unterminated /** block is still scanned to EOF (no crash, body checked)
+    code = """
+    /**
+     * @returns x
+    """
+    assert labels_for(code) == ["wrong-command"]
+
+
+def test_banner_and_empty_comment_not_flagged() -> None:
+    code = """
+    /***
+     * banner
+     ***/
+    """
+    assert findings_for(code) == []
+    assert findings_for("/**/\n") == []
+
+
+def main() -> int:
+    tests = sorted(
+        (name, fn)
+        for name, fn in globals().items()
+        if name.startswith("test_") and callable(fn)
+    )
+    failed = 0
+    for name, fn in tests:
+        try:
+            fn()
+            print(f"PASS {name}")
+        except AssertionError as exc:
+            failed += 1
+            print(f"FAIL {name}: {exc!r}")
+    print(f"\n{len(tests) - failed}/{len(tests)} passed")
+    return 1 if failed else 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())

cmake/scripts/codegen/templates/LedgerEntry.h.mako

@@ -177,7 +177,9 @@ ${field['typeData']['setter_type']} ${field['paramName']}${',' if i < len(requir
         object_ = *sle;
     }
 
-    /** @brief Ledger entry-specific field setters */
+    /**
+     * @brief Ledger entry-specific field setters
+     */
 % for field in fields:
 
     /**

cmake/scripts/codegen/templates/Transaction.h.mako

@@ -185,7 +185,9 @@ public:
         object_ = *tx;
     }
 
-    /** @brief Transaction-specific field setters */
+    /**
+     * @brief Transaction-specific field setters
+     */
 % for field in fields:
 
     /**

docs/build/environment.md

@@ -33,9 +33,10 @@ with a single command and without installing anything system-wide:
 nix --experimental-features 'nix-command flakes' develop
 ```
 
-On **Linux**, Nix also provides the compiler (GCC). On **macOS**, the shell uses
-your **system-wide Apple Clang** as the compiler, so you still need to manage
-its version (see below).
+On **Linux**, Nix also provides the compiler (GCC); on **macOS**, it provides
+Clang. If you instead opt to use your system-wide Apple Clang (via
+`nix develop .#apple-clang`), you need to manage its version yourself (see
+below).
 
 See [Using the Nix development shell](./nix.md) for installation and usage
 details, including how to select a different compiler.
@@ -48,10 +49,10 @@ details, including how to select a different compiler.
 
 ### macOS: managing the Apple Clang version
 
-Because the Nix shell uses the system-wide Apple Clang on macOS, the compiler
-version is whatever your installed Xcode (or Command Line Tools) provides. The
-following command should return a version greater than or equal to the
-[minimum required](#tested-compiler-versions):
+If you use your system-wide Apple Clang on macOS (via `nix develop .#apple-clang`),
+the compiler version is whatever your installed Xcode (or Command Line Tools)
+provides. The following command should return a version greater than or equal to
+the [minimum required](#tested-compiler-versions):
 
 ```bash
 clang --version

docs/build/nix.md

@@ -9,7 +9,7 @@ This guide explains how to use Nix to set up a reproducible development environm
 - **Reproducible environment**: Everyone gets the same versions of tools and compilers
 - **Matches CI**: The Linux CI runs in Docker images built from this exact Nix environment
 - **No system pollution**: Dependencies are isolated and don't affect your system packages
-- **Multiple compiler versions**: Easily switch between different GCC and Clang versions
+- **Consistent compilers**: The GCC and Clang shells use the same versions as CI
 - **Quick setup**: Get started with a single command
 - **Works on Linux and macOS**: Consistent experience across platforms
 
@@ -31,8 +31,8 @@ This will:
 
 - Download and set up all required development tools (CMake, Ninja, Conan, etc.)
 - Configure the appropriate compiler for your platform:
-  - **Linux**: GCC 15.2 (provided by Nix)
-  - **macOS**: Apple Clang (your system compiler)
+  - **Linux**: GCC (provided by Nix)
+  - **macOS**: Clang (provided by Nix)
 
 The first time you run this command, it will take a few minutes to download and build the environment. Subsequent runs will be much faster.
 
@@ -40,12 +40,12 @@ The first time you run this command, it will take a few minutes to download and
 
 - **Linux**: `nix develop` gives you a shell with all the tooling necessary to
   develop xrpld and with GCC 15.2 (also provided by Nix). There are no caveats.
-- **macOS**: `nix develop` gives you a full environment too. The compiler is
-  your system-wide Apple Clang, while every other tool — including Conan — is
-  provided by Nix. Conan has no binary in the Nix cache for macOS, so it is
-  built from source the first time you enter the shell, which makes the initial
-  setup slower (this is handled automatically; see
-  [`nix/devshell.nix`](../../nix/devshell.nix)).
+- **macOS**: `nix develop` gives you a full environment too, with Clang (and
+  every other tool, including Conan) provided by Nix. To use your system-wide
+  Apple Clang instead, enter `nix develop .#apple-clang`. Conan has no binary in
+  the Nix cache for macOS, so it is built from source the first time you enter
+  the shell, which makes the initial setup slower (this is handled
+  automatically; see [`nix/devshell.nix`](../../nix/devshell.nix)).
 
 > [!TIP]
 > To avoid typing `--experimental-features 'nix-command flakes'` every time, you can permanently enable flakes by creating `~/.config/nix/nix.conf`:
@@ -62,7 +62,9 @@ The first time you run this command, it will take a few minutes to download and
 
 ### Choosing a different compiler
 
-A compiler can be chosen by providing its name with the `.#` prefix, e.g. `nix develop .#gcc15`.
+A compiler can be chosen by providing its name with the `.#` prefix, e.g. `nix develop .#clang`.
+The `.#gcc` and `.#clang` shells provide the same GCC and Clang versions used in CI
+(pinned in [`nix/packages.nix`](../../nix/packages.nix)).
 Use `nix flake show` to see all the available development shells.
 
 Use `nix develop .#no-compiler` to use the compiler from your system.
@@ -70,11 +72,11 @@ Use `nix develop .#no-compiler` to use the compiler from your system.
 ### Example Usage
 
 ```bash
-# Use GCC 14
-nix develop .#gcc14
+# Use GCC (same version as CI)
+nix develop .#gcc
 
-# Use Clang 19
-nix develop .#clang19
+# Use Clang (same version as CI)
+nix develop .#clang
 
 # Use default for your platform
 nix develop
@@ -112,7 +114,15 @@ Once inside the Nix development shell, follow the standard [build instructions](
 
 [direnv](https://direnv.net/) or [nix-direnv](https://github.com/nix-community/nix-direnv) can automatically activate the Nix development shell when you enter the repository directory.
 
-This is also the most robust way to use the environment from **any shell** (bash, zsh, fish, …): direnv stays in your current shell and loads the environment _after_ your shell's startup files have run, so the Nix-provided tools take precedence over anything your shell configuration adds to `$PATH`. To use it, install direnv for your shell, then add an `.envrc` containing `use flake` at the repository root and run `direnv allow`.
+This is also the most robust way to use the environment from **any shell** (bash, zsh, fish, …): direnv stays in your current shell and loads the environment _after_ your shell's startup files have run, so the Nix-provided tools take precedence over anything your shell configuration adds to `$PATH`.
+
+The repository already ships an `.envrc` at its root that activates the Nix flake development shell, so you don't need to create one. To use it:
+
+1. [Install direnv](https://direnv.net/docs/installation.html) and [hook it into your shell](https://direnv.net/docs/hook.html) (bash, zsh, fish, …). Installing [nix-direnv](https://github.com/nix-community/nix-direnv) as well is recommended: it caches the shell so that activation is near-instant after the first run.
+2. Run `direnv allow` once in the repository root. direnv will then load (and reload) the Nix development shell automatically whenever you enter the directory.
+
+> [!NOTE]
+> direnv only caches the `.direnv` directory (already listed in `.gitignore`); no other repository files are affected.
 
 ## Conan and Prebuilt Packages
 

include/xrpl/basics/Archive.h

@@ -4,13 +4,14 @@
 
 namespace xrpl {
 
-/** Extract a tar archive compressed with lz4
-
-    @param src the path of the archive to be extracted
-    @param dst the directory to extract to
-
-    @throws runtime_error
-*/
+/**
+ * Extract a tar archive compressed with lz4
+ *
+ * @param src the path of the archive to be extracted
+ * @param dst the directory to extract to
+ *
+ * @throws runtime_error
+ */
 void
 extractTarLz4(boost::filesystem::path const& src, boost::filesystem::path const& dst);
 

include/xrpl/basics/Blob.h

@@ -4,9 +4,10 @@
 
 namespace xrpl {
 
-/** Storage for linear binary data.
-    Blocks of binary data appear often in various idioms and structures.
-*/
+/**
+ * Storage for linear binary data.
+ * Blocks of binary data appear often in various idioms and structures.
+ */
 using Blob = std::vector<unsigned char>;
 
 }  // namespace xrpl

include/xrpl/basics/Buffer.h

@@ -10,9 +10,10 @@
 
 namespace xrpl {
 
-/** Like std::vector<char> but better.
-    Meets the requirements of BufferFactory.
-*/
+/**
+ * Like std::vector<char> but better.
+ * Meets the requirements of BufferFactory.
+ */
 class Buffer
 {
 private:
@@ -24,30 +25,37 @@ public:
 
     Buffer() = default;
 
-    /** Create an uninitialized buffer with the given size. */
+    /**
+     * Create an uninitialized buffer with the given size.
+     */
     explicit Buffer(std::size_t size)
         : p_((size != 0u) ? new std::uint8_t[size] : nullptr), size_(size)
     {
     }
 
-    /** Create a buffer as a copy of existing memory.
-
-        @param data a pointer to the existing memory. If
-                    size is non-zero, it must not be null.
-        @param size size of the existing memory block.
-    */
+    /**
+     * Create a buffer as a copy of existing memory.
+     *
+     * @param data a pointer to the existing memory. If
+     *             size is non-zero, it must not be null.
+     * @param size size of the existing memory block.
+     */
     Buffer(void const* data, std::size_t size) : Buffer(size)
     {
         if (size != 0u)
             std::memcpy(p_.get(), data, size);
     }
 
-    /** Copy-construct */
+    /**
+     * Copy-construct
+     */
     Buffer(Buffer const& other) : Buffer(other.p_.get(), other.size_)
     {
     }
 
-    /** Copy assign */
+    /**
+     * Copy assign
+     */
     Buffer&
     operator=(Buffer const& other)
     {
@@ -59,17 +67,19 @@ public:
         return *this;
     }
 
-    /** Move-construct.
-        The other buffer is reset.
-    */
+    /**
+     * Move-construct.
+     * The other buffer is reset.
+     */
     Buffer(Buffer&& other) noexcept : p_(std::move(other.p_)), size_(other.size_)
     {
         other.size_ = 0;
     }
 
-    /** Move-assign.
-        The other buffer is reset.
-    */
+    /**
+     * Move-assign.
+     * The other buffer is reset.
+     */
     Buffer&
     operator=(Buffer&& other) noexcept
     {
@@ -82,12 +92,16 @@ public:
         return *this;
     }
 
-    /** Construct from a slice */
+    /**
+     * Construct from a slice
+     */
     explicit Buffer(Slice s) : Buffer(s.data(), s.size())
     {
     }
 
-    /** Assign from slice */
+    /**
+     * Assign from slice
+     */
     Buffer&
     operator=(Slice s)
     {
@@ -101,7 +115,9 @@ public:
         return *this;
     }
 
-    /** Returns the number of bytes in the buffer. */
+    /**
+     * Returns the number of bytes in the buffer.
+     */
     [[nodiscard]] std::size_t
     size() const noexcept
     {
@@ -121,10 +137,11 @@ public:
         return Slice{p_.get(), size_};
     }
 
-    /** Return a pointer to beginning of the storage.
-        @note The return type is guaranteed to be a pointer
-              to a single byte, to facilitate pointer arithmetic.
-    */
+    /**
+     * Return a pointer to beginning of the storage.
+     * @note The return type is guaranteed to be a pointer
+     *       to a single byte, to facilitate pointer arithmetic.
+     */
     /** @{ */
     [[nodiscard]] std::uint8_t const*
     data() const noexcept
@@ -139,9 +156,10 @@ public:
     }
     /** @} */
 
-    /** Reset the buffer.
-        All memory is deallocated. The resulting size is 0.
-    */
+    /**
+     * Reset the buffer.
+     * All memory is deallocated. The resulting size is 0.
+     */
     void
     clear() noexcept
     {
@@ -149,9 +167,10 @@ public:
         size_ = 0;
     }
 
-    /** Reallocate the storage.
-        Existing data, if any, is discarded.
-    */
+    /**
+     * Reallocate the storage.
+     * Existing data, if any, is discarded.
+     */
     std::uint8_t*
     alloc(std::size_t n)
     {

include/xrpl/basics/CompressionAlgorithms.h

@@ -12,7 +12,8 @@
 
 namespace xrpl::compression_algorithms {
 
-/** LZ4 block compression.
+/**
+ * LZ4 block compression.
  * @tparam BufferFactory Callable object or lambda.
  *     Takes the requested buffer size and returns allocated buffer pointer.
  * @param in Data to compress
@@ -80,7 +81,8 @@ lz4Decompress(
     return decompressedSize;
 }
 
-/** LZ4 block decompression.
+/**
+ * LZ4 block decompression.
  * @tparam InputStream ZeroCopyInputStream
  * @param in Input source stream
  * @param inSize Size of compressed data

include/xrpl/basics/CountedObject.h

@@ -9,7 +9,9 @@
 
 namespace xrpl {
 
-/** Manages all counted object types. */
+/**
+ * Manages all counted object types.
+ */
 class CountedObjects
 {
 public:
@@ -23,10 +25,11 @@ public:
     getCounts(int minimumThreshold) const;
 
 public:
-    /** Implementation for @ref CountedObject.
-
-        @internal
-    */
+    /**
+     * Implementation for @ref CountedObject.
+     *
+     * @internal
+     */
     class Counter
     {
     public:
@@ -94,13 +97,14 @@ private:
 
 //------------------------------------------------------------------------------
 
-/** Tracks the number of instances of an object.
-
-    Derived classes have their instances counted automatically. This is used
-    for reporting purposes.
-
-    @ingroup basics
-*/
+/**
+ * Tracks the number of instances of an object.
+ *
+ * Derived classes have their instances counted automatically. This is used
+ * for reporting purposes.
+ *
+ * @ingroup basics
+ */
 template <class Object>
 class CountedObject
 {

include/xrpl/basics/DecayingSample.h

@@ -6,9 +6,10 @@
 
 namespace xrpl {
 
-/** Sampling function using exponential decay to provide a continuous value.
-    @tparam The number of seconds in the decay window.
-*/
+/**
+ * Sampling function using exponential decay to provide a continuous value.
+ * @tparam The number of seconds in the decay window.
+ */
 template <int Window, typename Clock>
 class DecayingSample
 {
@@ -19,15 +20,16 @@ public:
     DecayingSample() = delete;
 
     /**
-        @param now Start time of DecayingSample.
-    */
+     * @param now Start time of DecayingSample.
+     */
     explicit DecayingSample(time_point now) : value_(value_type()), when_(now)
     {
     }
 
-    /** Add a new sample.
-        The value is first aged according to the specified time.
-    */
+    /**
+     * Add a new sample.
+     * The value is first aged according to the specified time.
+     */
     value_type
     add(value_type value, time_point now)
     {
@@ -36,9 +38,10 @@ public:
         return value_ / Window;
     }
 
-    /** Retrieve the current value in normalized units.
-        The samples are first aged according to the specified time.
-    */
+    /**
+     * Retrieve the current value in normalized units.
+     * The samples are first aged according to the specified time.
+     */
     value_type
     value(time_point now)
     {
@@ -87,9 +90,10 @@ private:
 
 //------------------------------------------------------------------------------
 
-/** Sampling function using exponential decay to provide a continuous value.
-    @tparam HalfLife The half life of a sample, in seconds.
-*/
+/**
+ * Sampling function using exponential decay to provide a continuous value.
+ * @tparam HalfLife The half life of a sample, in seconds.
+ */
 template <int HalfLife, class Clock>
 class DecayWindow
 {

include/xrpl/basics/IntrusivePointer.h

@@ -10,33 +10,37 @@ namespace xrpl {
 
 //------------------------------------------------------------------------------
 
-/** Tag to create an intrusive pointer from another intrusive pointer by using a
-    static cast. This is useful to create an intrusive pointer to a derived
-    class from an intrusive pointer to a base class.
-*/
+/**
+ * Tag to create an intrusive pointer from another intrusive pointer by using a
+ * static cast. This is useful to create an intrusive pointer to a derived
+ * class from an intrusive pointer to a base class.
+ */
 struct StaticCastTagSharedIntrusive
 {
 };
 
-/** Tag to create an intrusive pointer from another intrusive pointer by using a
-    dynamic cast. This is useful to create an intrusive pointer to a derived
-    class from an intrusive pointer to a base class. If the cast fails an empty
-    (null) intrusive pointer is created.
-*/
+/**
+ * Tag to create an intrusive pointer from another intrusive pointer by using a
+ * dynamic cast. This is useful to create an intrusive pointer to a derived
+ * class from an intrusive pointer to a base class. If the cast fails an empty
+ * (null) intrusive pointer is created.
+ */
 struct DynamicCastTagSharedIntrusive
 {
 };
 
-/** When creating or adopting a raw pointer, controls whether the strong count
-    is incremented or not. Use this tag to increment the strong count.
-*/
+/**
+ * When creating or adopting a raw pointer, controls whether the strong count
+ * is incremented or not. Use this tag to increment the strong count.
+ */
 struct SharedIntrusiveAdoptIncrementStrongTag
 {
 };
 
-/** When creating or adopting a raw pointer, controls whether the strong count
-    is incremented or not. Use this tag to leave the strong count unchanged.
-*/
+/**
+ * When creating or adopting a raw pointer, controls whether the strong count
+ * is incremented or not. Use this tag to leave the strong count unchanged.
+ */
 struct SharedIntrusiveAdoptNoIncrementTag
 {
 };
@@ -50,20 +54,21 @@ concept CAdoptTag = std::is_same_v<T, SharedIntrusiveAdoptIncrementStrongTag> ||
 
 //------------------------------------------------------------------------------
 
-/** A shared intrusive pointer class that supports weak pointers.
-
-    This is meant to be used for SHAMapInnerNodes, but may be useful for other
-    cases. Since the reference counts are stored on the pointee, the pointee is
-    not destroyed until both the strong _and_ weak pointer counts go to zero.
-    When the strong pointer count goes to zero, the "partialDestructor" is
-    called. This can be used to destroy as much of the object as possible while
-    still retaining the reference counts. For example, for SHAMapInnerNodes the
-    children may be reset in that function. Note that std::shared_pointer WILL
-    run the destructor when the strong count reaches zero, but may not free the
-    memory used by the object until the weak count reaches zero. In xrpld, we
-    typically allocate shared pointers with the `make_shared` function. When
-    that is used, the memory is not reclaimed until the weak count reaches zero.
-*/
+/**
+ * A shared intrusive pointer class that supports weak pointers.
+ *
+ * This is meant to be used for SHAMapInnerNodes, but may be useful for other
+ * cases. Since the reference counts are stored on the pointee, the pointee is
+ * not destroyed until both the strong _and_ weak pointer counts go to zero.
+ * When the strong pointer count goes to zero, the "partialDestructor" is
+ * called. This can be used to destroy as much of the object as possible while
+ * still retaining the reference counts. For example, for SHAMapInnerNodes the
+ * children may be reset in that function. Note that std::shared_pointer WILL
+ * run the destructor when the strong count reaches zero, but may not free the
+ * memory used by the object until the weak count reaches zero. In xrpld, we
+ * typically allocate shared pointers with the `make_shared` function. When
+ * that is used, the memory is not reclaimed until the weak count reaches zero.
+ */
 template <class T>
 class SharedIntrusive
 {
@@ -111,8 +116,9 @@ public:
     operator=(
         SharedIntrusive<TT>&& rhs);  // NOLINT(cppcoreguidelines-rvalue-reference-param-not-moved)
 
-    /** Adopt the raw pointer. The strong reference may or may not be
-        incremented, depending on the TAdoptTag
+    /**
+     * Adopt the raw pointer. The strong reference may or may not be
+     * incremented, depending on the TAdoptTag
      */
     template <CAdoptTag TAdoptTag = SharedIntrusiveAdoptIncrementStrongTag>
     void
@@ -120,27 +126,31 @@ public:
 
     ~SharedIntrusive();
 
-    /** Create a new SharedIntrusive by statically casting the pointer
-        controlled by the rhs param.
-    */
+    /**
+     * Create a new SharedIntrusive by statically casting the pointer
+     * controlled by the rhs param.
+     */
     template <class TT>
     SharedIntrusive(StaticCastTagSharedIntrusive, SharedIntrusive<TT> const& rhs);
 
-    /** Create a new SharedIntrusive by statically casting the pointer
-       controlled by the rhs param.
-    */
+    /**
+     * Create a new SharedIntrusive by statically casting the pointer
+     * controlled by the rhs param.
+     */
     template <class TT>
     SharedIntrusive(StaticCastTagSharedIntrusive, SharedIntrusive<TT>&& rhs);
 
-    /** Create a new SharedIntrusive by dynamically casting the pointer
-       controlled by the rhs param.
-    */
+    /**
+     * Create a new SharedIntrusive by dynamically casting the pointer
+     * controlled by the rhs param.
+     */
     template <class TT>
     SharedIntrusive(DynamicCastTagSharedIntrusive, SharedIntrusive<TT> const& rhs);
 
-    /** Create a new SharedIntrusive by dynamically casting the pointer
-       controlled by the rhs param.
-    */
+    /**
+     * Create a new SharedIntrusive by dynamically casting the pointer
+     * controlled by the rhs param.
+     */
     template <class TT>
     SharedIntrusive(DynamicCastTagSharedIntrusive, SharedIntrusive<TT>&& rhs);
 
@@ -153,17 +163,22 @@ public:
     explicit
     operator bool() const noexcept;
 
-    /** Set the pointer to null, decrement the strong count, and run the
-        appropriate release action.
-      */
+    /**
+     * Set the pointer to null, decrement the strong count, and run the
+     * appropriate release action.
+     */
     void
     reset();
 
-    /** Get the raw pointer */
+    /**
+     * Get the raw pointer
+     */
     [[nodiscard]] T*
     get() const;
 
-    /** Return the strong count */
+    /**
+     * Return the strong count
+     */
     [[nodiscard]] std::size_t
     useCount() const;
 
@@ -181,43 +196,51 @@ public:
     friend class WeakIntrusive;
 
 private:
-    /** Return the raw pointer held by this object. */
+    /**
+     * Return the raw pointer held by this object.
+     */
     [[nodiscard]] T*
     unsafeGetRawPtr() const;
 
-    /** Exchange the current raw pointer held by this object with the given
-        pointer. Decrement the strong count of the raw pointer previously held
-        by this object and run the appropriate release action.
+    /**
+     * Exchange the current raw pointer held by this object with the given
+     * pointer. Decrement the strong count of the raw pointer previously held
+     * by this object and run the appropriate release action.
      */
     void
     unsafeReleaseAndStore(T* next);
 
-    /** Set the raw pointer directly. This is wrapped in a function so the class
-        can support both atomic and non-atomic pointers in a future patch.
+    /**
+     * Set the raw pointer directly. This is wrapped in a function so the class
+     * can support both atomic and non-atomic pointers in a future patch.
      */
     void
     unsafeSetRawPtr(T* p);
 
-    /** Exchange the raw pointer directly.
-        This sets the raw pointer to the given value and returns the previous
-        value. This is wrapped in a function so the class can support both
-        atomic and non-atomic pointers in a future patch.
+    /**
+     * Exchange the raw pointer directly.
+     * This sets the raw pointer to the given value and returns the previous
+     * value. This is wrapped in a function so the class can support both
+     * atomic and non-atomic pointers in a future patch.
      */
     T*
     unsafeExchange(T* p);
 
-    /** pointer to the type with an intrusive count */
+    /**
+     * pointer to the type with an intrusive count
+     */
     T* ptr_{nullptr};
 };
 
 //------------------------------------------------------------------------------
 
-/** A weak intrusive pointer class for the SharedIntrusive pointer class.
-
-Note that this weak pointer class asks differently from normal weak pointer
-classes. When the strong pointer count goes to zero, the "partialDestructor"
-is called. See the comment on SharedIntrusive for a fuller explanation.
-*/
+/**
+ * A weak intrusive pointer class for the SharedIntrusive pointer class.
+ *
+ * Note that this weak pointer class asks differently from normal weak pointer
+ * classes. When the strong pointer count goes to zero, the "partialDestructor"
+ * is called. See the comment on SharedIntrusive for a fuller explanation.
+ */
 template <class T>
 class WeakIntrusive
 {
@@ -247,54 +270,62 @@ public:
     WeakIntrusive&
     operator=(SharedIntrusive<TT> const& rhs);
 
-    /** Adopt the raw pointer and increment the weak count. */
+    /**
+     * Adopt the raw pointer and increment the weak count.
+     */
     void
     adopt(T* ptr);
 
     ~WeakIntrusive();
 
-    /** Get a strong pointer from the weak pointer, if possible. This will
-       only return a seated pointer if the strong count on the raw pointer
-       is non-zero before locking.
+    /**
+     * Get a strong pointer from the weak pointer, if possible. This will
+     * only return a seated pointer if the strong count on the raw pointer
+     * is non-zero before locking.
      */
     SharedIntrusive<T>
     lock() const;
 
-    /** Return true if the strong count is zero. */
+    /**
+     * Return true if the strong count is zero.
+     */
     [[nodiscard]] bool
     expired() const;
 
-    /** Set the pointer to null and decrement the weak count.
-
-    Note: This may run the destructor if the strong count is zero.
-    */
+    /**
+     * Set the pointer to null and decrement the weak count.
+     *
+     * Note: This may run the destructor if the strong count is zero.
+     */
     void
     reset();
 
 private:
     T* ptr_ = nullptr;
 
-    /** Decrement the weak count. This does _not_ set the raw pointer to
-    null.
-
-    Note: This may run the destructor if the strong count is zero.
-    */
+    /**
+     * Decrement the weak count. This does _not_ set the raw pointer to
+     * null.
+     *
+     * Note: This may run the destructor if the strong count is zero.
+     */
     void
     unsafeReleaseNoStore();
 };
 
 //------------------------------------------------------------------------------
 
-/** A combination of a strong and a weak intrusive pointer stored in the
-    space of a single pointer.
-
-    This class is similar to a `std::variant<SharedIntrusive,WeakIntrusive>`
-    with some optimizations. In particular, it uses a low-order bit to
-    determine if the raw pointer represents a strong pointer or a weak
-    pointer. It can also be quickly switched between its strong pointer and
-    weak pointer representations. This class is useful for storing intrusive
-    pointers in tagged caches.
-  */
+/**
+ * A combination of a strong and a weak intrusive pointer stored in the
+ * space of a single pointer.
+ *
+ * This class is similar to a `std::variant<SharedIntrusive,WeakIntrusive>`
+ * with some optimizations. In particular, it uses a low-order bit to
+ * determine if the raw pointer represents a strong pointer or a weak
+ * pointer. It can also be quickly switched between its strong pointer and
+ * weak pointer representations. This class is useful for storing intrusive
+ * pointers in tagged caches.
+ */
 
 template <class T>
 class SharedWeakUnion
@@ -336,69 +367,83 @@ public:
 
     ~SharedWeakUnion();
 
-    /** Return a strong pointer if this is already a strong pointer (i.e.
-       don't lock the weak pointer. Use the `lock` method if that's what's
-       needed)
+    /**
+     * Return a strong pointer if this is already a strong pointer (i.e.
+     * don't lock the weak pointer. Use the `lock` method if that's what's
+     * needed)
      */
     [[nodiscard]] SharedIntrusive<T>
     getStrong() const;
 
-    /** Return true if this is a strong pointer and the strong pointer is
-        seated.
+    /**
+     * Return true if this is a strong pointer and the strong pointer is
+     * seated.
      */
     explicit
     operator bool() const noexcept;
 
-    /** Set the pointer to null, decrement the appropriate ref count, and
-       run the appropriate release action.
+    /**
+     * Set the pointer to null, decrement the appropriate ref count, and
+     * run the appropriate release action.
      */
     void
     reset();
 
-    /** If this is a strong pointer, return the raw pointer. Otherwise
-       return null.
+    /**
+     * If this is a strong pointer, return the raw pointer. Otherwise
+     * return null.
      */
     [[nodiscard]] T*
     get() const;
 
-    /** If this is a strong pointer, return the strong count. Otherwise
+    /**
+     * If this is a strong pointer, return the strong count. Otherwise
      * return 0
      */
     [[nodiscard]] std::size_t
     useCount() const;
 
-    /** Return true if there is a non-zero strong count. */
+    /**
+     * Return true if there is a non-zero strong count.
+     */
     [[nodiscard]] bool
     expired() const;
 
-    /** If this is a strong pointer, return the strong pointer. Otherwise
-        attempt to lock the weak pointer.
+    /**
+     * If this is a strong pointer, return the strong pointer. Otherwise
+     * attempt to lock the weak pointer.
      */
     [[nodiscard]] SharedIntrusive<T>
     lock() const;
 
-    /** Return true is this represents a strong pointer. */
+    /**
+     * Return true is this represents a strong pointer.
+     */
     [[nodiscard]] bool
     isStrong() const;
 
-    /** Return true is this represents a weak pointer. */
+    /**
+     * Return true is this represents a weak pointer.
+     */
     [[nodiscard]] bool
     isWeak() const;
 
-    /** If this is a weak pointer, attempt to convert it to a strong
-       pointer.
-
-        @return true if successfully converted to a strong pointer (or was
-                already a strong pointer). Otherwise false.
-      */
+    /**
+     * If this is a weak pointer, attempt to convert it to a strong
+     * pointer.
+     *
+     * @return true if successfully converted to a strong pointer (or was
+     *         already a strong pointer). Otherwise false.
+     */
     bool
     convertToStrong();
 
-    /** If this is a strong pointer, attempt to convert it to a weak
-       pointer.
-
-        @return false if the pointer is null. Otherwise return true.
-      */
+    /**
+     * If this is a strong pointer, attempt to convert it to a weak
+     * pointer.
+     *
+     * @return false if the pointer is null. Otherwise return true.
+     */
     bool
     convertToWeak();
 
@@ -411,23 +456,27 @@ private:
     static constexpr std::uintptr_t kPtrMask = ~kTagMask;
 
 private:
-    /** Return the raw pointer held by this object.
+    /**
+     * Return the raw pointer held by this object.
      */
     [[nodiscard]] T*
     unsafeGetRawPtr() const;
 
     enum class RefStrength { Strong, Weak };
-    /** Set the raw pointer and tag bit directly.
+    /**
+     * Set the raw pointer and tag bit directly.
      */
     void
     unsafeSetRawPtr(T* p, RefStrength rs);
 
-    /** Set the raw pointer and tag bit to all zeros (strong null pointer).
+    /**
+     * Set the raw pointer and tag bit to all zeros (strong null pointer).
      */
     void unsafeSetRawPtr(std::nullptr_t);
 
-    /** Decrement the appropriate ref count, and run the appropriate release
-        action. Note: this does _not_ set the raw pointer to null.
+    /**
+     * Decrement the appropriate ref count, and run the appropriate release
+     * action. Note: this does _not_ set the raw pointer to null.
      */
     void
     unsafeReleaseNoStore();
@@ -435,12 +484,13 @@ private:
 
 //------------------------------------------------------------------------------
 
-/** Create a shared intrusive pointer.
-
-    Note: unlike std::shared_ptr, where there is an advantage of allocating
-    the pointer and control block together, there is no benefit for intrusive
-    pointers.
-*/
+/**
+ * Create a shared intrusive pointer.
+ *
+ * Note: unlike std::shared_ptr, where there is an advantage of allocating
+ * the pointer and control block together, there is no benefit for intrusive
+ * pointers.
+ */
 template <class TT, class... Args>
 SharedIntrusive<TT>
 makeSharedIntrusive(Args&&... args)

include/xrpl/basics/IntrusiveRefCounts.h

@@ -8,35 +8,38 @@
 
 namespace xrpl {
 
-/** Action to perform when releasing a strong pointer.
-
-    noop: Do nothing. For example, a `noop` action will occur when a count is
-    decremented to a non-zero value.
-
-    partialDestroy: Run the `partialDestructor`. This action will happen when a
-    strong count is decremented to zero and the weak count is non-zero.
-
-    destroy: Run the destructor. This action will occur when either the strong
-    count or weak count is decremented and the other count is also zero.
+/**
+ * Action to perform when releasing a strong pointer.
+ *
+ * noop: Do nothing. For example, a `noop` action will occur when a count is
+ * decremented to a non-zero value.
+ *
+ * partialDestroy: Run the `partialDestructor`. This action will happen when a
+ * strong count is decremented to zero and the weak count is non-zero.
+ *
+ * destroy: Run the destructor. This action will occur when either the strong
+ * count or weak count is decremented and the other count is also zero.
  */
 enum class ReleaseStrongRefAction { NoOp, PartialDestroy, Destroy };
 
-/** Action to perform when releasing a weak pointer.
-
-    noop: Do nothing. For example, a `noop` action will occur when a count is
-    decremented to a non-zero value.
-
-    destroy: Run the destructor. This action will occur when either the strong
-    count or weak count is decremented and the other count is also zero.
+/**
+ * Action to perform when releasing a weak pointer.
+ *
+ * noop: Do nothing. For example, a `noop` action will occur when a count is
+ * decremented to a non-zero value.
+ *
+ * destroy: Run the destructor. This action will occur when either the strong
+ * count or weak count is decremented and the other count is also zero.
  */
 enum class ReleaseWeakRefAction { NoOp, Destroy };
 
-/** Implement the strong count, weak count, and bit flags for an intrusive
-    pointer.
-
-    A class can satisfy the requirements of an xrpl::IntrusivePointer by
-    inheriting from this class.
-  */
+/**
+ * Implement the strong count, weak count, and bit flags for an intrusive
+ * pointer.
+ *
+ * A class can satisfy the requirements of an xrpl::IntrusivePointer by
+ * inheriting from this class.
+ */
 struct IntrusiveRefCounts
 {
     virtual ~IntrusiveRefCounts() noexcept;
@@ -105,109 +108,123 @@ private:
     static constexpr size_t kFieldTypeBits = sizeof(FieldType) * 8;
     static constexpr FieldType kOne = 1;
 
-    /** `refCounts` consists of four fields that are treated atomically:
-
-         1. Strong count. This is a count of the number of shared pointers that
-         hold a reference to this object. When the strong counts goes to zero,
-         if the weak count is zero, the destructor is run. If the weak count is
-         non-zero when the strong count goes to zero then the partialDestructor
-         is run.
-
-         2. Weak count. This is a count of the number of weak pointer that hold
-         a reference to this object. When the weak count goes to zero and the
-         strong count is also zero, then the destructor is run.
-
-         3. Partial destroy started bit. This bit is set if the
-         `partialDestructor` function has been started (or is about to be
-         started). This is used to prevent the destructor from running
-         concurrently with the partial destructor. This can easily happen when
-         the last strong pointer release its reference in one thread and starts
-         the partialDestructor, while in another thread the last weak pointer
-         goes out of scope and starts the destructor while the partialDestructor
-         is still running. Both a start and finished bit is needed to handle a
-         corner-case where the last strong pointer goes out of scope, then then
-         last `weakPointer` goes out of scope, but this happens before the
-         `partialDestructor` bit is set. It would be possible to use a single
-         bit if it could also be set atomically when the strong count goes to
-         zero and the weak count is non-zero, but that would add complexity (and
-         likely slow down common cases as well).
-
-         4. Partial destroy finished bit. This bit is set when the
-         `partialDestructor` has finished running. See (3) above for more
-         information.
-
-         */
+    /**
+     * `refCounts` consists of four fields that are treated atomically:
+     *
+     * 1. Strong count. This is a count of the number of shared pointers that
+     * hold a reference to this object. When the strong counts goes to zero,
+     * if the weak count is zero, the destructor is run. If the weak count is
+     * non-zero when the strong count goes to zero then the partialDestructor
+     * is run.
+     *
+     * 2. Weak count. This is a count of the number of weak pointer that hold
+     * a reference to this object. When the weak count goes to zero and the
+     * strong count is also zero, then the destructor is run.
+     *
+     * 3. Partial destroy started bit. This bit is set if the
+     * `partialDestructor` function has been started (or is about to be
+     * started). This is used to prevent the destructor from running
+     * concurrently with the partial destructor. This can easily happen when
+     * the last strong pointer release its reference in one thread and starts
+     * the partialDestructor, while in another thread the last weak pointer
+     * goes out of scope and starts the destructor while the partialDestructor
+     * is still running. Both a start and finished bit is needed to handle a
+     * corner-case where the last strong pointer goes out of scope, then then
+     * last `weakPointer` goes out of scope, but this happens before the
+     * `partialDestructor` bit is set. It would be possible to use a single
+     * bit if it could also be set atomically when the strong count goes to
+     * zero and the weak count is non-zero, but that would add complexity (and
+     * likely slow down common cases as well).
+     *
+     * 4. Partial destroy finished bit. This bit is set when the
+     * `partialDestructor` has finished running. See (3) above for more
+     * information.
+     */
 
     mutable std::atomic<FieldType> refCounts_{kStrongDelta};
 
-    /**  Amount to change the strong count when adding or releasing a reference
-
-         Note: The strong count is stored in the low `StrongCountNumBits` bits
-       of refCounts
-      */
+    /**
+     * Amount to change the strong count when adding or releasing a reference
+     *
+     *   Note: The strong count is stored in the low `StrongCountNumBits` bits
+     * of refCounts
+     */
     static constexpr FieldType kStrongDelta = 1;
 
-    /**  Amount to change the weak count when adding or releasing a reference
-
-         Note: The weak count is stored in the high `WeakCountNumBits` bits of
-         refCounts
-      */
+    /**
+     * Amount to change the weak count when adding or releasing a reference
+     *
+     * Note: The weak count is stored in the high `WeakCountNumBits` bits of
+     * refCounts
+     */
     static constexpr FieldType kWeakDelta = (kOne << kStrongCountNumBits);
 
-    /**  Flag that is set when the partialDestroy function has started running
-         (or is about to start running).
-
-         See description of the `refCounts` field for a fuller description of
-         this field.
-      */
+    /**
+     * Flag that is set when the partialDestroy function has started running
+     * (or is about to start running).
+     *
+     * See description of the `refCounts` field for a fuller description of
+     * this field.
+     */
     static constexpr FieldType kPartialDestroyStartedMask = (kOne << (kFieldTypeBits - 1));
 
-    /**  Flag that is set when the partialDestroy function has finished running
-
-         See description of the `refCounts` field for a fuller description of
-         this field.
-      */
+    /**
+     * Flag that is set when the partialDestroy function has finished running
+     *
+     * See description of the `refCounts` field for a fuller description of
+     * this field.
+     */
     static constexpr FieldType kPartialDestroyFinishedMask = (kOne << (kFieldTypeBits - 2));
 
-    /** Mask that will zero out all the `count` bits and leave the tag bits
-        unchanged.
-      */
+    /**
+     * Mask that will zero out all the `count` bits and leave the tag bits
+     * unchanged.
+     */
     static constexpr FieldType kTagMask = kPartialDestroyStartedMask | kPartialDestroyFinishedMask;
 
-    /** Mask that will zero out the `tag` bits and leave the count bits
-        unchanged.
-      */
+    /**
+     * Mask that will zero out the `tag` bits and leave the count bits
+     * unchanged.
+     */
     static constexpr FieldType kValueMask = ~kTagMask;
 
-    /** Mask that will zero out everything except the strong count.
+    /**
+     * Mask that will zero out everything except the strong count.
      */
     static constexpr FieldType kStrongMask = ((kOne << kStrongCountNumBits) - 1) & kValueMask;
 
-    /** Mask that will zero out everything except the weak count.
+    /**
+     * Mask that will zero out everything except the weak count.
      */
     static constexpr FieldType kWeakMask =
         (((kOne << kWeakCountNumBits) - 1) << kStrongCountNumBits) & kValueMask;
 
-    /** Unpack the count and tag fields from the packed atomic integer form. */
+    /**
+     * Unpack the count and tag fields from the packed atomic integer form.
+     */
     struct RefCountPair
     {
         CountType strong;
         CountType weak;
-        /**  The `partialDestroyStartedBit` is set to on when the partial
-             destroy function is started. It is not a boolean; it is a uint32
-             with all bits zero with the possible exception of the
-             `partialDestroyStartedMask` bit. This is done so it can be directly
-             masked into the `combinedValue`.
+        /**
+         * The `partialDestroyStartedBit` is set to on when the partial
+         * destroy function is started. It is not a boolean; it is a uint32
+         * with all bits zero with the possible exception of the
+         * `partialDestroyStartedMask` bit. This is done so it can be directly
+         * masked into the `combinedValue`.
          */
         FieldType partialDestroyStartedBit{0};
-        /**  The `partialDestroyFinishedBit` is set to on when the partial
-             destroy function has finished.
+        /**
+         * The `partialDestroyFinishedBit` is set to on when the partial
+         * destroy function has finished.
          */
         FieldType partialDestroyFinishedBit{0};
         RefCountPair(FieldType v) noexcept;
         RefCountPair(CountType s, CountType w) noexcept;
 
-        /** Convert back to the packed integer form. */
+        /**
+         * Convert back to the packed integer form.
+         */
         [[nodiscard]] FieldType
         combinedValue() const noexcept;
 
@@ -215,9 +232,10 @@ private:
             static_cast<CountType>((kOne << kStrongCountNumBits) - 1);
         static constexpr CountType kMaxWeakValue =
             static_cast<CountType>((kOne << kWeakCountNumBits) - 1);
-        /**  Put an extra margin to detect when running up against limits.
-             This is only used in debug code, and is useful if we reduce the
-             number of bits in the strong and weak counts (to 16 and 14 bits).
+        /**
+         * Put an extra margin to detect when running up against limits.
+         * This is only used in debug code, and is useful if we reduce the
+         * number of bits in the strong and weak counts (to 16 and 14 bits).
          */
         static constexpr CountType kCheckStrongMaxValue = kMaxStrongValue - 32;
         static constexpr CountType kCheckWeakMaxValue = kMaxWeakValue - 32;

include/xrpl/basics/LocalValue.h

@@ -70,11 +70,15 @@ public:
     {
     }
 
-    /** Stores instance of T specific to the calling coroutine or thread. */
+    /**
+     * Stores instance of T specific to the calling coroutine or thread.
+     */
     T&
     operator*();
 
-    /** Stores instance of T specific to the calling coroutine or thread. */
+    /**
+     * Stores instance of T specific to the calling coroutine or thread.
+     */
     T*
     operator->()
     {

include/xrpl/basics/Log.h

@@ -16,7 +16,9 @@
 
 namespace xrpl {
 
-/** Manages partitions for logging. */
+/**
+ * Manages partitions for logging.
+ */
 class Logs
 {
 private:
@@ -40,69 +42,81 @@ private:
         writeAlways(beast::Severity level, std::string const& text) override;
     };
 
-    /** Manages a system file containing logged output.
-        The system file remains open during program execution. Interfaces
-        are provided for interoperating with standard log management
-        tools like logrotate(8):
-            http://linuxcommand.org/man_pages/logrotate8.html
-        @note None of the listed interfaces are thread-safe.
-    */
+    /**
+     * Manages a system file containing logged output.
+     * The system file remains open during program execution. Interfaces
+     * are provided for interoperating with standard log management
+     * tools like logrotate(8):
+     *     http://linuxcommand.org/man_pages/logrotate8.html
+     * @note None of the listed interfaces are thread-safe.
+     */
     class File
     {
     public:
-        /** Construct with no associated system file.
-            A system file may be associated later with @ref open.
-            @see open
-        */
+        /**
+         * Construct with no associated system file.
+         * A system file may be associated later with @ref open.
+         * @see open
+         */
         File();
 
-        /** Destroy the object.
-            If a system file is associated, it will be flushed and closed.
-        */
+        /**
+         * Destroy the object.
+         * If a system file is associated, it will be flushed and closed.
+         */
         ~File() = default;
 
-        /** Determine if a system file is associated with the log.
-            @return `true` if a system file is associated and opened for
-            writing.
-        */
+        /**
+         * Determine if a system file is associated with the log.
+         * @return `true` if a system file is associated and opened for
+         * writing.
+         */
         [[nodiscard]] bool
         isOpen() const noexcept;
 
-        /** Associate a system file with the log.
-            If the file does not exist an attempt is made to create it
-            and open it for writing. If the file already exists an attempt is
-            made to open it for appending.
-            If a system file is already associated with the log, it is closed
-            first.
-            @return `true` if the file was opened.
-        */
+        /**
+         * Associate a system file with the log.
+         * If the file does not exist an attempt is made to create it
+         * and open it for writing. If the file already exists an attempt is
+         * made to open it for appending.
+         * If a system file is already associated with the log, it is closed
+         * first.
+         * @return `true` if the file was opened.
+         */
         bool
         open(boost::filesystem::path const& path);
 
-        /** Close and re-open the system file associated with the log
-            This assists in interoperating with external log management tools.
-            @return `true` if the file was opened.
-        */
+        /**
+         * Close and re-open the system file associated with the log
+         * This assists in interoperating with external log management tools.
+         * @return `true` if the file was opened.
+         */
         bool
         closeAndReopen();
 
-        /** Close the system file if it is open. */
+        /**
+         * Close the system file if it is open.
+         */
         void
         close();
 
-        /** write to the log file.
-            Does nothing if there is no associated system file.
-        */
+        /**
+         * write to the log file.
+         * Does nothing if there is no associated system file.
+         */
         void
         write(char const* text);
 
-        /** write to the log file and append an end of line marker.
-            Does nothing if there is no associated system file.
-        */
+        /**
+         * write to the log file and append an end of line marker.
+         * Does nothing if there is no associated system file.
+         */
         void
         writeln(char const* text);
 
-        /** Write to the log file using std::string. */
+        /**
+         * Write to the log file using std::string.
+         */
         /** @{ */
         void
         write(std::string const& str)
@@ -223,19 +237,21 @@ private:
 //------------------------------------------------------------------------------
 // Debug logging:
 
-/** Set the sink for the debug journal.
-
-    @param sink unique_ptr to new debug Sink.
-    @return unique_ptr to the previous Sink.  nullptr if there was no Sink.
-*/
+/**
+ * Set the sink for the debug journal.
+ *
+ * @param sink unique_ptr to new debug Sink.
+ * @return unique_ptr to the previous Sink.  nullptr if there was no Sink.
+ */
 std::unique_ptr<beast::Journal::Sink>
 setDebugLogSink(std::unique_ptr<beast::Journal::Sink> sink);
 
-/** Returns a debug journal.
-    The journal may drain to a null sink, so its output
-    may never be seen. Never use it for critical
-    information.
-*/
+/**
+ * Returns a debug journal.
+ * The journal may drain to a null sink, so its output
+ * may never be seen. Never use it for critical
+ * information.
+ */
 beast::Journal
 debugLog();
 

include/xrpl/basics/MathUtilities.h

@@ -6,7 +6,8 @@
 
 namespace xrpl {
 
-/** Calculate one number divided by another number in percentage.
+/**
+ * Calculate one number divided by another number in percentage.
  * The result is rounded up to the next integer, and capped in the range [0,100]
  * E.g. calculatePercent(1, 100) = 1 because 1/100 = 0.010000
  *      calculatePercent(1, 99) = 2 because 1/99 = 0.010101
@@ -19,7 +20,7 @@ namespace xrpl {
  * @return the percentage, in [0, 100]
  *
  * @note total cannot be zero.
- * */
+ */
 constexpr std::size_t
 calculatePercent(std::size_t count, std::size_t total)
 {

include/xrpl/basics/Number.h

@@ -14,7 +14,6 @@
 #include <stdexcept>
 #include <string>
 #include <type_traits>
-#include <unordered_map>
 #include <utility>
 
 namespace xrpl {
@@ -48,46 +47,54 @@ isPowerOfTen(T value)
 
 namespace detail {
 
-/** Builds a table of the powers of 10
+/**
+ * Builds a table of the powers of 10
  *
  * This function is marked consteval, so it can only be run in
  * a constexpr context. This assures that it is and can only be run at
  * compile time. Doing it at runtime would be pretty wasteful and
  * inefficient.
  */
-constexpr std::size_t kInt64Digits = 20;
-consteval std::array<std::uint64_t, kInt64Digits>
+constexpr std::size_t kUint64Digits = 20;
+[[maybe_unused]] constexpr std::size_t kUint128Digits = 39;
+
+template <typename T, std::size_t Digits>
+consteval std::array<T, Digits>
 buildPowersOfTen()
 {
-    std::array<std::uint64_t, kInt64Digits> result{};
+    std::array<T, Digits> result{};
 
-    std::uint64_t power = 1;
+    T power = 1;
     std::size_t exponent = 0;
     // end the loop early so it doesn't overflow;
     for (; exponent < result.size() - 1; ++exponent, power *= 10)
     {
         result[exponent] = power;
-        if (power > std::numeric_limits<std::uint64_t>::max() / 10)
+        if (power > std::numeric_limits<T>::max() / 10)
             throw std::logic_error("Power of 10 table is too big");
     }
     result[exponent] = power;
-    if (power < std::numeric_limits<std::uint64_t>::max() / 10)
-        throw std::logic_error("Power of 10 table is not big enough for the uint64_t type");
+    if (power < std::numeric_limits<T>::max() / 10)
+        throw std::logic_error("Power of 10 table is not big enough for the given type");
 
     return result;
 }
 
 }  // namespace detail
 
-constexpr std::array<std::uint64_t, detail::kInt64Digits> kPowerOfTen = detail::buildPowersOfTen();
+template <typename T = std::uint64_t, std::size_t Digits = detail::kUint64Digits>
+constexpr std::array<T, Digits> kPowerOfTenImpl = detail::buildPowersOfTen<T, Digits>();
+
+constexpr auto kPowerOfTen = kPowerOfTenImpl<std::uint64_t, detail::kUint64Digits>;
 
 static_assert(kPowerOfTen[0] == 1);
 static_assert(kPowerOfTen[1] == 10);
 static_assert(kPowerOfTen[10] == 10'000'000'000);
 static_assert(
-    isPowerOfTen(kPowerOfTen.back()) && *logTen(kPowerOfTen.back()) == detail::kInt64Digits - 1);
+    isPowerOfTen(kPowerOfTen.back()) && *logTen(kPowerOfTen.back()) == detail::kUint64Digits - 1);
 
-/** MantissaRange defines a range for the mantissa of a normalized Number.
+/**
+ * MantissaRange defines a range for the mantissa of a normalized Number.
  *
  * The mantissa is in the range [min, max], where
  * * min is a power of 10, and
@@ -124,17 +131,37 @@ struct MantissaRange final
 {
     using rep = std::uint64_t;
 
+    // NOLINTBEGIN(readability-enum-initial-value)
+    // The values don't matter, except for Large
     enum class MantissaScale {
+        // Small can be removed when either featureSingleAssetVault or featureLendingProtocol are
+        // retired
         Small,
         // LargeLegacy can be removed when fixCleanup3_2_0 is retired
         LargeLegacy,
-        Large,
+        // Large320 can be removed when fixCleanup3_3_0 is retired
+        Large320,
+        // If Large330 is ever the only remaining "Large*" entry, it can be renamed to just "Large".
+        Large330,
+        // Large is a de-facto alias for "the latest", and is only here for backward compatibility
+        // in the extremely unlikely case that a downstream project made use of it. Note that
+        // because the behavior changed, this may still be a breaking change.
+        Large = Large330,
     };
+    // NOLINTEND(readability-enum-initial-value)
 
-    // This entire enum can be removed when fixCleanup3_2_0 is retired
-    enum class CuspRoundingFix : bool {
-        Disabled = false,
-        Enabled = true,
+    // This entire enum can be removed when the last relevant amendment is retired
+    enum class CuspRoundingFix : std::uint8_t {
+        // Disabled can be removed when fixCleanup3_2_0 is retired
+        Disabled = 0,
+        // Enabled320 can be removed when fixCleanup3_3_0 is retired
+        Enabled320 = 1,
+        // If we ever get to the point that there's only one entry, remove the entire enum
+        Enabled330 = 2,
+        // Enabled is a de-facto alias for "the latest", and is only here for backward compatibility
+        // in the extremely unlikely case that a downstream project made use of it. Note that
+        // because the behavior changed, this may still be a breaking change.
+        Enabled = Enabled330,
     };
 
     explicit constexpr MantissaRange(MantissaScale sc) : scale(sc)
@@ -145,13 +172,27 @@ struct MantissaRange final
     int const log{getExponent(scale)};
     rep const min{getMin(scale, log)};
     rep const max{(min * 10) - 1};
-    CuspRoundingFix const cuspRoundingFixEnabled{isCuspFixEnabled(scale)};
-
-    static MantissaRange const&
-    getMantissaRange(MantissaScale scale);
+    CuspRoundingFix const cuspRoundingFix{isCuspFixEnabled(scale)};
 
     static std::set<MantissaScale> const&
-    getAllScales();
+    getAllScales()
+    {
+        static std::set<MantissaRange::MantissaScale> const kScales = {
+            MantissaRange::MantissaScale::Small,
+            MantissaRange::MantissaScale::LargeLegacy,
+            MantissaRange::MantissaScale::Large320,
+            MantissaRange::MantissaScale::Large330,
+        };
+        return kScales;
+    }
+
+    class Access
+    {
+        static constexpr MantissaRange const&
+        mantissaRange(MantissaScale scale);
+
+        friend Number;
+    };
 
 private:
     static constexpr int
@@ -162,7 +203,8 @@ private:
             case MantissaScale::Small:
                 return 15;
             case MantissaScale::LargeLegacy:
-            case MantissaScale::Large:
+            case MantissaScale::Large320:
+            case MantissaScale::Large330:
                 return 18;
             // LCOV_EXCL_START
             default:
@@ -191,24 +233,24 @@ private:
             case MantissaScale::Small:
             case MantissaScale::LargeLegacy:
                 return CuspRoundingFix::Disabled;
-            case MantissaScale::Large:
-                return CuspRoundingFix::Enabled;
+            case MantissaScale::Large320:
+                return CuspRoundingFix::Enabled320;
+            case MantissaScale::Large330:
+                return CuspRoundingFix::Enabled330;
             default:
                 // If called in a constexpr context, this throw assures that the build fails if an
                 // invalid scale is used.
                 throw std::runtime_error("Unknown mantissa scale");  // LCOV_EXCL_LINE
         }
     }
-
-    static std::unordered_map<MantissaScale, MantissaRange> const&
-    getRanges();
 };
 
 // Like std::integral, but only 64-bit integral types.
 template <class T>
 concept Integral64 = std::is_same_v<T, std::int64_t> || std::is_same_v<T, std::uint64_t>;
 
-/** Number is a floating point type that can represent a wide range of values.
+/**
+ * Number is a floating point type that can represent a wide range of values.
  *
  * It can represent all values that can be represented by an STAmount -
  * regardless of asset type - XRPAmount, MPTAmount, and IOUAmount, with at least
@@ -304,7 +346,6 @@ concept Integral64 = std::is_same_v<T, std::int64_t> || std::is_same_v<T, std::u
  * disable the amendments that control the mantissa range choice
  * (SingleAssetVault and LendingProtocol), and/or check if either of those
  * amendments are enabled to determine which result to expect.
- *
  */
 class Number final
 {
@@ -390,10 +431,11 @@ public:
     static Number
     lowest() noexcept;
 
-    /** Conversions to Number are implicit and conversions away from Number
-     *  are explicit. This design encourages and facilitates the use of Number
-     *  as the preferred type for floating point arithmetic as it makes
-     *  "mixed mode" more convenient, e.g. MPTAmount + Number.
+    /**
+     * Conversions to Number are implicit and conversions away from Number
+     * are explicit. This design encourages and facilitates the use of Number
+     * as the preferred type for floating point arithmetic as it makes
+     * "mixed mode" more convenient, e.g. MPTAmount + Number.
      */
     explicit
     operator rep() const;  // round to nearest, even on tie
@@ -448,7 +490,9 @@ public:
         return l.mantissa_ < r.mantissa_;
     }
 
-    /** Return the sign of the amount */
+    /**
+     * Return the sign of the amount
+     */
     [[nodiscard]] constexpr int
     signum() const noexcept
     {
@@ -502,14 +546,16 @@ public:
     static RoundingMode
     setround(RoundingMode inMode);
 
-    /** Returns which mantissa scale is currently in use for normalization.
+    /**
+     * Returns which mantissa scale is currently in use for normalization.
      *
      * If you think you need to call this outside of unit tests, no you don't.
      */
     static MantissaRange::MantissaScale
     getMantissaScale();
 
-    /** Changes which mantissa scale is used for normalization.
+    /**
+     * Changes which mantissa scale is used for normalization.
      *
      * If you think you need to call this outside of unit tests, no you don't.
      */
@@ -554,10 +600,17 @@ private:
     // changing the values inside the range.
     static thread_local std::reference_wrapper<MantissaRange const> kRange;
 
+    class Guard;
+
     void
     normalize(MantissaRange const& range);
 
-    /** Normalize Number components to an arbitrary range.
+    // Guard has the fields that we need, as well as MantissaRange, so if we have a guard, use that
+    void
+    normalize(Guard const& guard);
+
+    /**
+     * Normalize Number components to an arbitrary range.
      *
      * min/maxMantissa are parameters because this function is used by both
      * normalize(), which reads from kRange, and by normalizeToRange,
@@ -571,7 +624,7 @@ private:
         int& exponent,
         internalrep const& minMantissa,
         internalrep const& maxMantissa,
-        MantissaRange::CuspRoundingFix cuspRoundingFixEnabled);
+        MantissaRange::CuspRoundingFix cuspRoundingFix);
 
     template <class T>
     friend void
@@ -581,7 +634,7 @@ private:
         int& exponent,
         MantissaRange::rep const& minMantissa,
         MantissaRange::rep const& maxMantissa,
-        MantissaRange::CuspRoundingFix cuspRoundingFixEnabled,
+        MantissaRange::CuspRoundingFix cuspRoundingFix,
         bool dropped);
 
     [[nodiscard]] bool
@@ -599,8 +652,6 @@ private:
     // UB, and can vary across compilers.
     static internalrep
     externalToInternal(rep mantissa);
-
-    class Guard;
 };
 
 constexpr Number::Number(bool negative, internalrep mantissa, int exponent, Unchecked) noexcept
@@ -635,7 +686,8 @@ inline Number::Number(rep mantissa) : Number{mantissa, 0}
 {
 }
 
-/** Returns the mantissa of the external view of the Number.
+/**
+ * Returns the mantissa of the external view of the Number.
  *
  * Please see the "---- External Interface ----" section of the class
  * documentation for an explanation of why the internal value may be modified.
@@ -656,7 +708,8 @@ Number::mantissa() const noexcept
     return sign * static_cast<Number::rep>(m);
 }
 
-/** Returns the exponent of the external view of the Number.
+/**
+ * Returns the exponent of the external view of the Number.
  *
  * Please see the "---- External Interface ----" section of the class
  * documentation for an explanation of why the internal value may be modified.
@@ -862,21 +915,11 @@ squelch(Number const& x, Number const& limit) noexcept
     return x;
 }
 
-inline std::string
-to_string(MantissaRange::MantissaScale const& scale)
-{
-    switch (scale)
-    {
-        case MantissaRange::MantissaScale::Small:
-            return "small";
-        case MantissaRange::MantissaScale::LargeLegacy:
-            return "largeLegacy";
-        case MantissaRange::MantissaScale::Large:
-            return "large";
-        default:
-            throw std::runtime_error("Bad scale");
-    }
-}
+std::string
+to_string(MantissaRange::MantissaScale const& scale);
+
+std::string
+to_string(Number::RoundingMode const& round);
 
 class SaveNumberRoundMode
 {
@@ -915,10 +958,10 @@ public:
     operator=(NumberRoundModeGuard const&) = delete;
 };
 
-/** Sets the new scale and restores the old scale when it leaves scope.
+/**
+ * Sets the new scale and restores the old scale when it leaves scope.
  *
  * If you think you need to use this class outside of unit tests, no you don't.
- *
  */
 class NumberMantissaScaleGuard
 {

include/xrpl/basics/RangeSet.h

@@ -13,23 +13,25 @@
 
 namespace xrpl {
 
-/** A closed interval over the domain T.
-
-    For an instance ClosedInterval c, this represents the closed interval
-    (c.first(), c.last()).  A single element interval has c.first() == c.last().
-
-    This is simply a type-alias for boost interval container library interval
-    set, so users should consult that documentation for available supporting
-    member and free functions.
-*/
+/**
+ * A closed interval over the domain T.
+ *
+ * For an instance ClosedInterval c, this represents the closed interval
+ * (c.first(), c.last()).  A single element interval has c.first() == c.last().
+ *
+ * This is simply a type-alias for boost interval container library interval
+ * set, so users should consult that documentation for available supporting
+ * member and free functions.
+ */
 template <class T>
 using ClosedInterval = boost::icl::closed_interval<T>;
 
-/** Create a closed range interval
-
-    Helper function to create a closed range interval without having to qualify
-    the template argument.
-*/
+/**
+ * Create a closed range interval
+ *
+ * Helper function to create a closed range interval without having to qualify
+ * the template argument.
+ */
 template <class T>
 ClosedInterval<T>
 range(T low, T high)
@@ -37,28 +39,30 @@ range(T low, T high)
     return ClosedInterval<T>(low, high);
 }
 
-/** A set of closed intervals over the domain T.
-
-    Represents a set of values of the domain T using the minimum number
-    of disjoint ClosedInterval<T>.  This is useful to represent ranges of
-    T where a few instances are missing, e.g. the set 1-5,8-9,11-14.
-
-    This is simply a type-alias for boost interval container library interval
-    set, so users should consult that documentation for available supporting
-    member and free functions.
-*/
+/**
+ * A set of closed intervals over the domain T.
+ *
+ * Represents a set of values of the domain T using the minimum number
+ * of disjoint ClosedInterval<T>.  This is useful to represent ranges of
+ * T where a few instances are missing, e.g. the set 1-5,8-9,11-14.
+ *
+ * This is simply a type-alias for boost interval container library interval
+ * set, so users should consult that documentation for available supporting
+ * member and free functions.
+ */
 template <class T>
 using RangeSet = boost::icl::interval_set<T, std::less, ClosedInterval<T>>;
 
-/** Convert a ClosedInterval to a styled string
-
-    The styled string is
-        "c.first()-c.last()"  if c.first() != c.last()
-        "c.first()" if c.first() == c.last()
-
-    @param ci The closed interval to convert
-    @return The style string
-*/
+/**
+ * Convert a ClosedInterval to a styled string
+ *
+ * The styled string is
+ *     "c.first()-c.last()"  if c.first() != c.last()
+ *     "c.first()" if c.first() == c.last()
+ *
+ * @param ci The closed interval to convert
+ * @return The style string
+ */
 template <class T>
 std::string
 to_string(ClosedInterval<T> const& ci)
@@ -68,14 +72,15 @@ to_string(ClosedInterval<T> const& ci)
     return std::to_string(ci.first()) + "-" + std::to_string(ci.last());
 }
 
-/** Convert the given RangeSet to a styled string.
-
-    The styled string representation is the set of disjoint intervals joined
-    by commas.  The string "empty" is returned if the set is empty.
-
-    @param rs The rangeset to convert
-    @return The styled string
-*/
+/**
+ * Convert the given RangeSet to a styled string.
+ *
+ * The styled string representation is the set of disjoint intervals joined
+ * by commas.  The string "empty" is returned if the set is empty.
+ *
+ * @param rs The rangeset to convert
+ * @return The styled string
+ */
 template <class T>
 std::string
 to_string(RangeSet<T> const& rs)
@@ -91,15 +96,16 @@ to_string(RangeSet<T> const& rs)
     return s;
 }
 
-/** Convert the given styled string to a RangeSet.
-
-    The styled string representation is the set
-    of disjoint intervals joined by commas.
-
-    @param rs The set to be populated
-    @param s The styled string to convert
-    @return True on successfully converting styled string
-*/
+/**
+ * Convert the given styled string to a RangeSet.
+ *
+ * The styled string representation is the set
+ * of disjoint intervals joined by commas.
+ *
+ * @param rs The set to be populated
+ * @param s The styled string to convert
+ * @return True on successfully converting styled string
+ */
 template <class T>
 [[nodiscard]] bool
 fromString(RangeSet<T>& rs, std::string const& s)
@@ -161,14 +167,15 @@ fromString(RangeSet<T>& rs, std::string const& s)
     return result;
 }
 
-/** Find the largest value not in the set that is less than a given value.
-
-    @param rs The set of interest
-    @param t The value that must be larger than the result
-    @param minVal (Default is 0) The smallest allowed value
-    @return The largest v such that minV <= v < t and !contains(rs, v) or
-            std::nullopt if no such v exists.
-*/
+/**
+ * Find the largest value not in the set that is less than a given value.
+ *
+ * @param rs The set of interest
+ * @param t The value that must be larger than the result
+ * @param minVal (Default is 0) The smallest allowed value
+ * @return The largest v such that minV <= v < t and !contains(rs, v) or
+ *         std::nullopt if no such v exists.
+ */
 template <class T>
 std::optional<T>
 prevMissing(RangeSet<T> const& rs, T t, T minVal = 0)

include/xrpl/basics/Resolver.h

@@ -15,22 +15,29 @@ public:
 
     virtual ~Resolver() = 0;
 
-    /** Issue an asynchronous stop request. */
+    /**
+     * Issue an asynchronous stop request.
+     */
     virtual void
     stopAsync() = 0;
 
-    /** Issue a synchronous stop request. */
+    /**
+     * Issue a synchronous stop request.
+     */
     virtual void
     stop() = 0;
 
-    /** Issue a synchronous start request. */
+    /**
+     * Issue a synchronous start request.
+     */
     virtual void
     start() = 0;
 
-    /** resolve all hostnames on the list
-        @param names the names to be resolved
-        @param handler the handler to call
-    */
+    /**
+     * resolve all hostnames on the list
+     * @param names the names to be resolved
+     * @param handler the handler to call
+     */
     /** @{ */
     template <class Handler>
     void

include/xrpl/basics/SharedWeakCachePointer.h

@@ -7,13 +7,14 @@
 
 namespace xrpl {
 
-/** A combination of a std::shared_ptr and a std::weak_pointer.
-
-
-This class is a wrapper to a `std::variant<std::shared_ptr,std::weak_ptr>`
-This class is useful for storing intrusive pointers in tagged caches using less
-memory than storing both pointers directly.
-*/
+/**
+ * A combination of a std::shared_ptr and a std::weak_pointer.
+ *
+ *
+ * This class is a wrapper to a `std::variant<std::shared_ptr,std::weak_ptr>`
+ * This class is useful for storing intrusive pointers in tagged caches using less
+ * memory than storing both pointers directly.
+ */
 
 template <class T>
 class SharedWeakCachePointer
@@ -48,65 +49,79 @@ public:
 
     ~SharedWeakCachePointer();
 
-    /** Return a strong pointer if this is already a strong pointer (i.e. don't
-        lock the weak pointer. Use the `lock` method if that's what's needed)
+    /**
+     * Return a strong pointer if this is already a strong pointer (i.e. don't
+     * lock the weak pointer. Use the `lock` method if that's what's needed)
      */
     [[nodiscard]] std::shared_ptr<T> const&
     getStrong() const;
 
-    /** Return true if this is a strong pointer and the strong pointer is
-        seated.
+    /**
+     * Return true if this is a strong pointer and the strong pointer is
+     * seated.
      */
     explicit
     operator bool() const noexcept;
 
-    /** Set the pointer to null, decrement the appropriate ref count, and run
-        the appropriate release action.
+    /**
+     * Set the pointer to null, decrement the appropriate ref count, and run
+     * the appropriate release action.
      */
     void
     reset();
 
-    /** If this is a strong pointer, return the raw pointer. Otherwise return
-        null.
+    /**
+     * If this is a strong pointer, return the raw pointer. Otherwise return
+     * null.
      */
     [[nodiscard]] T*
     get() const;
 
-    /** If this is a strong pointer, return the strong count. Otherwise return 0
+    /**
+     * If this is a strong pointer, return the strong count. Otherwise return 0
      */
     [[nodiscard]] std::size_t
     useCount() const;
 
-    /** Return true if there is a non-zero strong count. */
+    /**
+     * Return true if there is a non-zero strong count.
+     */
     [[nodiscard]] bool
     expired() const;
 
-    /** If this is a strong pointer, return the strong pointer. Otherwise
-        attempt to lock the weak pointer.
+    /**
+     * If this is a strong pointer, return the strong pointer. Otherwise
+     * attempt to lock the weak pointer.
      */
     [[nodiscard]] std::shared_ptr<T>
     lock() const;
 
-    /** Return true is this represents a strong pointer. */
+    /**
+     * Return true is this represents a strong pointer.
+     */
     [[nodiscard]] bool
     isStrong() const;
 
-    /** Return true is this represents a weak pointer. */
+    /**
+     * Return true is this represents a weak pointer.
+     */
     [[nodiscard]] bool
     isWeak() const;
 
-    /** If this is a weak pointer, attempt to convert it to a strong pointer.
-
-        @return true if successfully converted to a strong pointer (or was
-                already a strong pointer). Otherwise false.
-      */
+    /**
+     * If this is a weak pointer, attempt to convert it to a strong pointer.
+     *
+     * @return true if successfully converted to a strong pointer (or was
+     *         already a strong pointer). Otherwise false.
+     */
     bool
     convertToStrong();
 
-    /** If this is a strong pointer, attempt to convert it to a weak pointer.
-
-        @return false if the pointer is null. Otherwise return true.
-      */
+    /**
+     * If this is a strong pointer, attempt to convert it to a weak pointer.
+     *
+     * @return false if the pointer is null. Otherwise return true.
+     */
     bool
     convertToWeak();
 

include/xrpl/basics/SlabAllocator.h

@@ -33,7 +33,9 @@ class SlabAllocator
 
     static_assert(alignof(Type) == 8 || alignof(Type) == 4);
 
-    /** A block of memory that is owned by a slab allocator */
+    /**
+     * A block of memory that is owned by a slab allocator
+     */
     struct SlabBlock
     {
         // A mutex to protect the freelist for this block:
@@ -80,7 +82,9 @@ class SlabAllocator
         SlabBlock&
         operator=(SlabBlock&& other) = delete;
 
-        /** Determines whether the given pointer belongs to this allocator */
+        /**
+         * Determines whether the given pointer belongs to this allocator
+         */
         bool
         own(std::uint8_t const* pIn) const noexcept
         {
@@ -107,14 +111,15 @@ class SlabAllocator
             return ret;
         }
 
-        /** Return an item to this allocator's freelist.
-
-            @param ptr The pointer to the chunk of memory being deallocated.
-
-            @note This is a dangerous, private interface; the item being
-                  returned should belong to this allocator. Debug builds
-                  will check and assert if this is not the case. Release
-                  builds will not.
+        /**
+         * Return an item to this allocator's freelist.
+         *
+         * @param ptr The pointer to the chunk of memory being deallocated.
+         *
+         * @note This is a dangerous, private interface; the item being
+         *       returned should belong to this allocator. Debug builds
+         *       will check and assert if this is not the case. Release
+         *       builds will not.
          */
         void
         deallocate(std::uint8_t* ptr) noexcept
@@ -145,13 +150,14 @@ private:
     std::size_t const slabSize_;
 
 public:
-    /** Constructs a slab allocator able to allocate objects of a fixed size
-
-        @param count the number of items the slab allocator can allocate; note
-                     that a count of 0 is valid and means that the allocator
-                     is, effectively, disabled. This can be very useful in some
-                     contexts (e.g. when minimal memory usage is needed) and
-                     allows for graceful failure.
+    /**
+     * Constructs a slab allocator able to allocate objects of a fixed size
+     *
+     * @param count the number of items the slab allocator can allocate; note
+     *              that a count of 0 is valid and means that the allocator
+     *              is, effectively, disabled. This can be very useful in some
+     *              contexts (e.g. when minimal memory usage is needed) and
+     *              allows for graceful failure.
      */
     constexpr explicit SlabAllocator(
         std::size_t extra,
@@ -179,17 +185,20 @@ public:
     //        shutdown process up could make this possible.
     ~SlabAllocator() = default;
 
-    /** Returns the size of the memory block this allocator returns. */
+    /**
+     * Returns the size of the memory block this allocator returns.
+     */
     [[nodiscard]] constexpr std::size_t
     size() const noexcept
     {
         return itemSize_;
     }
 
-    /** Returns a suitably aligned pointer, if one is available.
-
-        @return a pointer to a block of memory from the allocator, or
-                nullptr if the allocator can't satisfy this request.
+    /**
+     * Returns a suitably aligned pointer, if one is available.
+     *
+     * @return a pointer to a block of memory from the allocator, or
+     *         nullptr if the allocator can't satisfy this request.
      */
     std::uint8_t*
     allocate() noexcept
@@ -250,12 +259,13 @@ public:
         return slab->allocate();
     }
 
-    /** Returns the memory block to the allocator.
-
-        @param ptr A pointer to a memory block.
-        @param size If non-zero, a hint as to the size of the block.
-        @return true if this memory block belonged to the allocator and has
-                     been released; false otherwise.
+    /**
+     * Returns the memory block to the allocator.
+     *
+     * @param ptr A pointer to a memory block.
+     * @param size If non-zero, a hint as to the size of the block.
+     * @return true if this memory block belonged to the allocator and has
+     *              been released; false otherwise.
      */
     bool
     deallocate(std::uint8_t* ptr) noexcept
@@ -278,7 +288,9 @@ public:
     }
 };
 
-/** A collection of slab allocators of various sizes for a given type. */
+/**
+ * A collection of slab allocators of various sizes for a given type.
+ */
 template <typename Type>
 class SlabAllocatorSet
 {
@@ -345,13 +357,14 @@ public:
 
     ~SlabAllocatorSet() = default;
 
-    /** Returns a suitably aligned pointer, if one is available.
-
-        @param extra The number of extra bytes, above and beyond the size of
-                     the object, that should be returned by the allocator.
-
-        @return a pointer to a block of memory, or nullptr if the allocator
-                can't satisfy this request.
+    /**
+     * Returns a suitably aligned pointer, if one is available.
+     *
+     * @param extra The number of extra bytes, above and beyond the size of
+     *              the object, that should be returned by the allocator.
+     *
+     * @return a pointer to a block of memory, or nullptr if the allocator
+     *         can't satisfy this request.
      */
     std::uint8_t*
     allocate(std::size_t extra) noexcept
@@ -368,12 +381,13 @@ public:
         return nullptr;
     }
 
-    /** Returns the memory block to the allocator.
-
-        @param ptr A pointer to a memory block.
-
-        @return true if this memory block belonged to one of the allocators
-                     in this set and has been released; false otherwise.
+    /**
+     * Returns the memory block to the allocator.
+     *
+     * @param ptr A pointer to a memory block.
+     *
+     * @return true if this memory block belonged to one of the allocators
+     *              in this set and has been released; false otherwise.
      */
     bool
     deallocate(std::uint8_t* ptr) noexcept

include/xrpl/basics/Slice.h

@@ -16,12 +16,13 @@
 
 namespace xrpl {
 
-/** An immutable linear range of bytes.
-
-    A fully constructed Slice is guaranteed to be in a valid state.
-    A Slice is lightweight and copyable, it retains no ownership
-    of the underlying memory.
-*/
+/**
+ * An immutable linear range of bytes.
+ *
+ * A fully constructed Slice is guaranteed to be in a valid state.
+ * A Slice is lightweight and copyable, it retains no ownership
+ * of the underlying memory.
+ */
 class Slice
 {
 private:
@@ -32,30 +33,37 @@ public:
     using value_type = std::uint8_t;
     using const_iterator = value_type const*;
 
-    /** Default constructed Slice has length 0. */
+    /**
+     * Default constructed Slice has length 0.
+     */
     Slice() noexcept = default;
 
     Slice(Slice const&) noexcept = default;
     Slice&
     operator=(Slice const&) noexcept = default;
 
-    /** Create a slice pointing to existing memory. */
+    /**
+     * Create a slice pointing to existing memory.
+     */
     Slice(void const* data, std::size_t size) noexcept
         : data_(reinterpret_cast<std::uint8_t const*>(data)), size_(size)
     {
     }
 
-    /** Return `true` if the byte range is empty. */
+    /**
+     * Return `true` if the byte range is empty.
+     */
     [[nodiscard]] bool
     empty() const noexcept
     {
         return size_ == 0;
     }
 
-    /** Returns the number of bytes in the storage.
-
-        This may be zero for an empty range.
-    */
+    /**
+     * Returns the number of bytes in the storage.
+     *
+     * This may be zero for an empty range.
+     */
     /** @{ */
     [[nodiscard]] std::size_t
     size() const noexcept
@@ -70,17 +78,20 @@ public:
     }
     /** @} */
 
-    /** Return a pointer to beginning of the storage.
-        @note The return type is guaranteed to be a pointer
-              to a single byte, to facilitate pointer arithmetic.
-    */
+    /**
+     * Return a pointer to beginning of the storage.
+     * @note The return type is guaranteed to be a pointer
+     *       to a single byte, to facilitate pointer arithmetic.
+     */
     [[nodiscard]] std::uint8_t const*
     data() const noexcept
     {
         return data_;
     }
 
-    /** Access raw bytes. */
+    /**
+     * Access raw bytes.
+     */
     std::uint8_t
     operator[](std::size_t i) const noexcept
     {
@@ -88,7 +99,9 @@ public:
         return data_[i];
     }
 
-    /** Advance the buffer. */
+    /**
+     * Advance the buffer.
+     */
     /** @{ */
     Slice&
     operator+=(std::size_t n)
@@ -108,7 +121,9 @@ public:
     }
     /** @} */
 
-    /** Shrinks the slice by moving its start forward by n characters. */
+    /**
+     * Shrinks the slice by moving its start forward by n characters.
+     */
     void
     removePrefix(std::size_t n)
     {
@@ -116,7 +131,9 @@ public:
         size_ -= n;
     }
 
-    /** Shrinks the slice by moving its end backward by n characters. */
+    /**
+     * Shrinks the slice by moving its end backward by n characters.
+     */
     void
     removeSuffix(std::size_t n)
     {
@@ -147,16 +164,17 @@ public:
         return data_ + size_;
     }
 
-    /** Return a "sub slice" of given length starting at the given position
-
-        Note that the subslice encompasses the range [pos, pos + rCount),
-        where rCount is the smaller of count and size() - pos.
-
-        @param pos position of the first character
-        @count requested length
-
-        @returns The requested subslice, if the request is valid.
-        @throws std::out_of_range if pos > size()
+    /**
+     * Return a "sub slice" of given length starting at the given position
+     *
+     * Note that the subslice encompasses the range [pos, pos + rCount),
+     * where rCount is the smaller of count and size() - pos.
+     *
+     * @param pos position of the first character
+     * @count requested length
+     *
+     * @return The requested subslice, if the request is valid.
+     * @throws std::out_of_range if pos > size()
      */
     [[nodiscard]] Slice
     substr(std::size_t pos, std::size_t count = std::numeric_limits<std::size_t>::max()) const

include/xrpl/basics/StringUtilities.h

@@ -17,15 +17,16 @@
 
 namespace xrpl {
 
-/** Format arbitrary binary data as an SQLite "blob literal".
-
-    In SQLite, blob literals must be encoded when used in a query. Per
-    https://sqlite.org/lang_expr.html#literal_values_constants_ they are
-    encoded as string literals containing hexadecimal data and preceded
-    by a single 'X' character.
-
-    @param blob An arbitrary blob of binary data
-    @return The input, encoded as a blob literal.
+/**
+ * Format arbitrary binary data as an SQLite "blob literal".
+ *
+ * In SQLite, blob literals must be encoded when used in a query. Per
+ * https://sqlite.org/lang_expr.html#literal_values_constants_ they are
+ * encoded as string literals containing hexadecimal data and preceded
+ * by a single 'X' character.
+ *
+ * @param blob An arbitrary blob of binary data
+ * @return The input, encoded as a blob literal.
  */
 std::string
 sqlBlobLiteral(Blob const& blob);
@@ -130,11 +131,12 @@ trimWhitespace(std::string str);
 std::optional<std::uint64_t>
 toUInt64(std::string const& s);
 
-/** Determines if the given string looks like a TOML-file hosting domain.
-
-    Do not use this function to determine if a particular string is a valid
-    domain, as this function may reject domains that are otherwise valid and
-    doesn't check whether the TLD is valid.
+/**
+ * Determines if the given string looks like a TOML-file hosting domain.
+ *
+ * Do not use this function to determine if a particular string is a valid
+ * domain, as this function may reject domains that are otherwise valid and
+ * doesn't check whether the TLD is valid.
  */
 bool
 isProperlyFormedTomlDomain(std::string_view domain);

include/xrpl/basics/TaggedCache.h

@@ -41,18 +41,19 @@ struct ReplaceDynamically;
 
 }  // namespace detail
 
-/** Map/cache combination.
-    This class implements a cache and a map. The cache keeps objects alive
-    in the map. The map allows multiple code paths that reference objects
-    with the same tag to get the same actual object.
-
-    So long as data is in the cache, it will stay in memory.
-    If it stays in memory even after it is ejected from the cache,
-    the map will track it.
-
-    @note Callers must not modify data objects that are stored in the cache
-          unless they hold their own lock over all cache operations.
-*/
+/**
+ * Map/cache combination.
+ * This class implements a cache and a map. The cache keeps objects alive
+ * in the map. The map allows multiple code paths that reference objects
+ * with the same tag to get the same actual object.
+ *
+ * So long as data is in the cache, it will stay in memory.
+ * If it stays in memory even after it is ejected from the cache,
+ * the map will track it.
+ *
+ * @note Callers must not modify data objects that are stored in the cache
+ *       unless they hold their own lock over all cache operations.
+ */
 template <
     class Key,
     class T,
@@ -82,11 +83,15 @@ public:
         beast::insight::Collector::ptr const& collector = beast::insight::NullCollector::make());
 
 public:
-    /** Return the clock associated with the cache. */
+    /**
+     * Return the clock associated with the cache.
+     */
     clock_type&
     clock();
 
-    /** Returns the number of items in the container. */
+    /**
+     * Returns the number of items in the container.
+     */
     std::size_t
     size() const;
 
@@ -105,9 +110,10 @@ public:
     void
     reset();
 
-    /** Refresh the last access time on a key if present.
-        @return `true` If the key was found.
-    */
+    /**
+     * Refresh the last access time on a key if present.
+     * @return `true` If the key was found.
+     */
     template <class KeyComparable>
     bool
     touchIfExists(KeyComparable const& key);
@@ -130,14 +136,15 @@ private:
         SharedPointerType const&,
         SharedPointerType&>;
 
-    /** Shared implementation of the canonicalize family.
-
-        `policy` selects how a collision is resolved when `key` already exists:
-        detail::ReplaceCached, detail::ReplaceClient or
-        detail::ReplaceDynamically. For ReplaceDynamically `replaceCallback` is
-        invoked with the existing strong pointer and returns whether to replace
-        the cached value with `data`; for the tag policies it is unused.
-    */
+    /**
+     * Shared implementation of the canonicalize family.
+     *
+     * `policy` selects how a collision is resolved when `key` already exists:
+     * detail::ReplaceCached, detail::ReplaceClient or
+     * detail::ReplaceDynamically. For ReplaceDynamically `replaceCallback` is
+     * invoked with the existing strong pointer and returns whether to replace
+     * the cached value with `data`; for the tag policies it is unused.
+     */
     template <class Policy, class Callback = std::nullptr_t>
     bool
     canonicalizeImpl(
@@ -147,69 +154,73 @@ private:
         Callback&& replaceCallback = nullptr);
 
 public:
-    /** Replace aliased objects with originals.
-
-        Due to concurrency it is possible for two separate objects with
-        the same content and referring to the same unique "thing" to exist.
-        This routine eliminates the duplicate and performs a replacement
-        on the callers shared pointer if needed.
-
-        `replaceCallback` is a callable taking the existing strong pointer and
-        returning whether to replace the cached value with `data` (true) or to
-        keep the cached value and write it back into `data` (false). Because the
-        write-back case mutates `data`, `data` must be writable.
-
-        @param key The key corresponding to the object
-        @param data A shared pointer to the data corresponding to the object.
-        @param replaceCallback A callable (existing strong pointer -> bool).
-
-        @return `true` if an existing live entry was found and used; `false` if a new entry was
-                inserted or an expired tracked entry was re-cached.
-    **/
+    /**
+     * Replace aliased objects with originals.
+     *
+     * Due to concurrency it is possible for two separate objects with
+     * the same content and referring to the same unique "thing" to exist.
+     * This routine eliminates the duplicate and performs a replacement
+     * on the callers shared pointer if needed.
+     *
+     * `replaceCallback` is a callable taking the existing strong pointer and
+     * returning whether to replace the cached value with `data` (true) or to
+     * keep the cached value and write it back into `data` (false). Because the
+     * write-back case mutates `data`, `data` must be writable.
+     *
+     * @param key The key corresponding to the object
+     * @param data A shared pointer to the data corresponding to the object.
+     * @param replaceCallback A callable (existing strong pointer -> bool).
+     *
+     * @return `true` if an existing live entry was found and used; `false` if a new entry was
+     *         inserted or an expired tracked entry was re-cached.
+     */
     template <class Callback>
     bool
     canonicalize(key_type const& key, SharedPointerType& data, Callback&& replaceCallback);
 
-    /** Insert/update the canonical entry for `key`, always replacing the
-        cached value with `data`.
-
-        If an entry already exists for `key`, the cached value is unconditionally
-        replaced with `data`; otherwise `data` is inserted. `data` is never
-        written back, so it may be const.
-
-        @param key The key corresponding to the object.
-        @param data A shared pointer to the data corresponding to the object.
-
-        @return `true` if an existing live entry was found and used; `false` if a new entry was
-                inserted or an expired tracked entry was re-cached.
-    **/
+    /**
+     * Insert/update the canonical entry for `key`, always replacing the
+     * cached value with `data`.
+     *
+     * If an entry already exists for `key`, the cached value is unconditionally
+     * replaced with `data`; otherwise `data` is inserted. `data` is never
+     * written back, so it may be const.
+     *
+     * @param key The key corresponding to the object.
+     * @param data A shared pointer to the data corresponding to the object.
+     *
+     * @return `true` if an existing live entry was found and used; `false` if a new entry was
+     *         inserted or an expired tracked entry was re-cached.
+     */
     bool
     canonicalizeReplaceCache(key_type const& key, SharedPointerType const& data);
 
-    /** Insert the canonical entry for `key`, keeping any existing cached value.
-
-        If an entry already exists for `key`, the cached value is kept and
-        written back into `data` so the caller ends up with the canonical
-        object; otherwise `data` is inserted. Because `data` may be overwritten
-        it must be writable.
-
-        @param key The key corresponding to the object.
-        @param data A shared pointer to the data corresponding to the object;
-                    updated to the canonical value when one already exists.
-
-        @return `true` if an existing live entry was found and used; `false` if a new entry was
-                inserted or an expired tracked entry was re-cached.
-    **/
+    /**
+     * Insert the canonical entry for `key`, keeping any existing cached value.
+     *
+     * If an entry already exists for `key`, the cached value is kept and
+     * written back into `data` so the caller ends up with the canonical
+     * object; otherwise `data` is inserted. Because `data` may be overwritten
+     * it must be writable.
+     *
+     * @param key The key corresponding to the object.
+     * @param data A shared pointer to the data corresponding to the object;
+     *             updated to the canonical value when one already exists.
+     *
+     * @return `true` if an existing live entry was found and used; `false` if a new entry was
+     *         inserted or an expired tracked entry was re-cached.
+     */
     bool
     canonicalizeReplaceClient(key_type const& key, SharedPointerType& data);
 
     SharedPointerType
     fetch(key_type const& key);
 
-    /** Insert the element into the container.
-        If the key already exists, nothing happens.
-        @return `true` If the element was inserted
-    */
+    /**
+     * Insert the element into the container.
+     * If the key already exists, nothing happens.
+     * @return `true` If the element was inserted
+     */
     template <class ReturnType = bool>
     auto
     insert(key_type const& key, T const& value) -> ReturnType
@@ -235,15 +246,18 @@ public:
     getKeys() const;
 
     // CachedSLEs functions.
-    /** Returns the fraction of cache hits. */
+    /**
+     * Returns the fraction of cache hits.
+     */
     double
     rate() const;
 
-    /** Fetch an item from the cache.
-        If the digest was not found, Handler
-        will be called with this signature:
-            SLE::const_pointer(void)
-    */
+    /**
+     * Fetch an item from the cache.
+     * If the digest was not found, Handler
+     * will be called with this signature:
+     *     SLE::const_pointer(void)
+     */
     template <class Handler>
     SharedPointerType
     fetch(key_type const& digest, Handler const& h);

include/xrpl/basics/ToString.h

@@ -5,10 +5,11 @@
 
 namespace xrpl {
 
-/** to_string() generalizes std::to_string to handle bools, chars, and strings.
-
-    It's also possible to provide implementation of to_string for a class
-    which needs a string implementation.
+/**
+ * to_string() generalizes std::to_string to handle bools, chars, and strings.
+ *
+ * It's also possible to provide implementation of to_string for a class
+ * which needs a string implementation.
  */
 
 template <class T>

include/xrpl/basics/UptimeClock.h

@@ -7,12 +7,13 @@
 
 namespace xrpl {
 
-/** Tracks program uptime to seconds precision.
-
-    The timer caches the current time as a performance optimization.
-    This allows clients to query the current time thousands of times
-    per second.
-*/
+/**
+ * Tracks program uptime to seconds precision.
+ *
+ * The timer caches the current time as a performance optimization.
+ * This allows clients to query the current time thousands of times
+ * per second.
+ */
 
 class UptimeClock
 {

include/xrpl/basics/base_uint.h

@@ -63,18 +63,19 @@ struct AlwaysFalseT : std::bool_constant<false>
 
 }  // namespace detail
 
-/** Integers of any length that is a multiple of 32-bits
-
-    @note This class stores its values internally in big-endian
-          form and that internal representation is part of the
-          binary protocol of the XRP Ledger and cannot be changed
-          arbitrarily without causing breakage.
-
-          @tparam Bits The number of bits this integer should have; must
-                       be at least 64 and a multiple of 32.
-          @tparam Tag An arbitrary type that functions as a tag and allows
-                      the instantiation of "distinct" types that the same
-                      number of bits.
+/**
+ * Integers of any length that is a multiple of 32-bits
+ *
+ * @note This class stores its values internally in big-endian
+ *       form and that internal representation is part of the
+ *       binary protocol of the XRP Ledger and cannot be changed
+ *       arbitrarily without causing breakage.
+ *
+ * @tparam Bits The number of bits this integer should have; must
+ *              be at least 64 and a multiple of 32.
+ * @tparam Tag An arbitrary type that functions as a tag and allows
+ *             the instantiation of "distinct" types that the same
+ *             number of bits.
  */
 template <std::size_t Bits, class Tag = void>
 class BaseUInt
@@ -154,21 +155,23 @@ public:
         return data() + kBytes;
     }
 
-    /** Value hashing function.
-        The seed prevents crafted inputs from causing degenerate parent
-       containers.
-    */
+    /**
+     * Value hashing function.
+     *  The seed prevents crafted inputs from causing degenerate parent
+     * containers.
+     */
     using hasher = HardenedHash<>;
 
     //--------------------------------------------------------------------------
 
 private:
-    /** Construct from a raw pointer.
-        The buffer pointed to by `data` must be at least Bits/8 bytes.
-
-        @note the structure is used to disambiguate this from the std::uint64_t
-              constructor: something like base_uint(0) is ambiguous.
-    */
+    /**
+     * Construct from a raw pointer.
+     * The buffer pointed to by `data` must be at least Bits/8 bytes.
+     *
+     * @note the structure is used to disambiguate this from the std::uint64_t
+     *       constructor: something like base_uint(0) is ambiguous.
+     */
     // NIKB TODO Remove the need for this constructor.
     struct VoidHelper
     {
@@ -503,13 +506,14 @@ public:
         h(a.data_.data(), sizeof(a.data_));
     }
 
-    /** Parse a hex string into a base_uint
-
-        The input must be precisely `2 * bytes` hexadecimal characters
-        long, with one exception: the value '0'.
-
-        @param sv A null-terminated string of hexadecimal characters
-        @return true if the input was parsed properly; false otherwise.
+    /**
+     * Parse a hex string into a base_uint
+     *
+     * The input must be precisely `2 * bytes` hexadecimal characters
+     * long, with one exception: the value '0'.
+     *
+     * @param sv A null-terminated string of hexadecimal characters
+     * @return true if the input was parsed properly; false otherwise.
      */
     [[nodiscard]] constexpr bool
     parseHex(std::string_view sv)
@@ -595,7 +599,7 @@ template <std::size_t Bits, typename Tag>
 [[nodiscard]] constexpr bool
 operator==(BaseUInt<Bits, Tag> const& lhs, BaseUInt<Bits, Tag> const& rhs)
 {
-    return (lhs <=> rhs) == 0;
+    return (lhs <=> rhs) == 0;  // NOLINT(modernize-use-nullptr)
 }
 
 //------------------------------------------------------------------------------

include/xrpl/basics/chrono.h

@@ -21,15 +21,16 @@ using days =
 
 using weeks = std::chrono::duration<int, std::ratio_multiply<days::period, std::ratio<7>>>;
 
-/** Clock for measuring the network time.
-
-    The epoch is January 1, 2000
-
-    epoch_offset
-    = date(2000-01-01) - date(1970-0-01)
-    = days(10957)
-    = seconds(946684800)
-*/
+/**
+ * Clock for measuring the network time.
+ *
+ * The epoch is January 1, 2000
+ *
+ * epoch_offset
+ * = date(2000-01-01) - date(1970-0-01)
+ * = days(10957)
+ * = seconds(946684800)
+ */
 
 static constexpr std::chrono::seconds kEpochOffset =
     date::sys_days{date::year{2000} / 1 / 1} - date::sys_days{date::year{1970} / 1 / 1};
@@ -81,16 +82,21 @@ toStringIso(NetClock::time_point tp)
     return toStringIso(date::sys_time<NetClock::duration>{tp.time_since_epoch() + kEpochOffset});
 }
 
-/** A clock for measuring elapsed time.
-
-    The epoch is unspecified.
-*/
+/**
+ * A clock for measuring elapsed time.
+ *
+ * The epoch is unspecified.
+ */
 using Stopwatch = beast::AbstractClock<std::chrono::steady_clock>;
 
-/** A manual Stopwatch for unit tests. */
+/**
+ * A manual Stopwatch for unit tests.
+ */
 using TestStopwatch = beast::ManualClock<std::chrono::steady_clock>;
 
-/** Returns an instance of a wall clock. */
+/**
+ * Returns an instance of a wall clock.
+ */
 inline Stopwatch&
 stopwatch()
 {

include/xrpl/basics/contract.h

@@ -15,20 +15,23 @@ namespace xrpl {
     preconditions, postconditions, and invariants.
 */
 
-/** Generates and logs a call stack */
+/**
+ * Generates and logs a call stack
+ */
 void
 logThrow(std::string const& title);
 
-/** Rethrow the exception currently being handled.
-
-    When called from within a catch block, it will pass
-    control to the next matching exception handler, if any.
-    Otherwise, std::terminate will be called.
-
-    ASAN can't handle sudden jumps in control flow very well. This
-    function is marked as XRPL_NO_SANITIZE_ADDRESS to prevent it from
-    triggering false positives, since it throws.
-*/
+/**
+ * Rethrow the exception currently being handled.
+ *
+ * When called from within a catch block, it will pass
+ * control to the next matching exception handler, if any.
+ * Otherwise, std::terminate will be called.
+ *
+ * ASAN can't handle sudden jumps in control flow very well. This
+ * function is marked as XRPL_NO_SANITIZE_ADDRESS to prevent it from
+ * triggering false positives, since it throws.
+ */
 [[noreturn]] XRPL_NO_SANITIZE_ADDRESS inline void
 rethrow()
 {
@@ -56,7 +59,9 @@ Throw(Args&&... args)
     throw std::move(e);
 }
 
-/** Called when faulty logic causes a broken invariant. */
+/**
+ * Called when faulty logic causes a broken invariant.
+ */
 [[noreturn]] void
 logicError(std::string const& how) noexcept;
 

include/xrpl/basics/hardened_hash.h

@@ -39,33 +39,33 @@ makeSeedPair() noexcept
 
 /**
  * Seed functor once per construction
-
-   A std compatible hash adapter that resists adversarial inputs.
-   For this to work, T must implement in its own namespace:
-
-   @code
-
-   template <class Hasher>
-   void
-   hash_append (Hasher& h, T const& t) noexcept
-   {
-       // hash_append each base and member that should
-       //  participate in forming the hash
-       using beast::hash_append;
-       hash_append (h, static_cast<T::base1 const&>(t));
-       hash_append (h, static_cast<T::base2 const&>(t));
-       // ...
-       hash_append (h, t.member1);
-       hash_append (h, t.member2);
-       // ...
-   }
-
-   @endcode
-
-   Do not use any version of Murmur or CityHash for the Hasher
-   template parameter (the hashing algorithm).  For details
-   see https://131002.net/siphash/#at
-*/
+ *
+ * A std compatible hash adapter that resists adversarial inputs.
+ * For this to work, T must implement in its own namespace:
+ *
+ * @code
+ *
+ * template <class Hasher>
+ * void
+ * hash_append (Hasher& h, T const& t) noexcept
+ * {
+ *     // hash_append each base and member that should
+ *     //  participate in forming the hash
+ *     using beast::hash_append;
+ *     hash_append (h, static_cast<T::base1 const&>(t));
+ *     hash_append (h, static_cast<T::base2 const&>(t));
+ *     // ...
+ *     hash_append (h, t.member1);
+ *     hash_append (h, t.member2);
+ *     // ...
+ * }
+ *
+ * @endcode
+ *
+ * Do not use any version of Murmur or CityHash for the Hasher
+ * template parameter (the hashing algorithm).  For details
+ * see https://131002.net/siphash/#at
+ */
 
 template <class HashAlgorithm = beast::Xxhasher>
 class HardenedHash

include/xrpl/basics/make_SSLContext.h

@@ -7,11 +7,15 @@
 
 namespace xrpl {
 
-/** Create a self-signed SSL context that allows anonymous Diffie Hellman. */
+/**
+ * Create a self-signed SSL context that allows anonymous Diffie Hellman.
+ */
 std::shared_ptr<boost::asio::ssl::context>
 makeSslContext(std::string const& cipherList);
 
-/** Create an authenticated SSL context using the specified files. */
+/**
+ * Create an authenticated SSL context using the specified files.
+ */
 std::shared_ptr<boost::asio::ssl::context>
 makeSslContextAuthed(
     std::string const& keyFile,

include/xrpl/basics/mulDiv.h

@@ -7,16 +7,16 @@
 namespace xrpl {
 constexpr auto kMuldivMax = std::numeric_limits<std::uint64_t>::max();
 
-/** Return value*mul/div accurately.
-    Computes the result of the multiplication and division in
-    a single step, avoiding overflow and retaining precision.
-    Throws:
-        None
-    Returns:
-        `std::optional`:
-            `std::nullopt` if the calculation overflows. Otherwise, `value * mul
-   / div`.
-*/
+/**
+ * Return value*mul/div accurately.
+ *
+ * Computes the result of the multiplication and division in
+ * a single step, avoiding overflow and retaining precision.
+ *
+ * @throws None
+ * @return `std::nullopt` if the calculation overflows. Otherwise,
+ *         `value * mul / div`.
+ */
 std::optional<std::uint64_t>
 mulDiv(std::uint64_t value, std::uint64_t mul, std::uint64_t div);
 

include/xrpl/basics/random.h

@@ -33,16 +33,17 @@ template <class Engine, class Result = typename Engine::result_type>
 using is_engine = std::is_invocable_r<Result, Engine>;
 }  // namespace detail
 
-/** Return the default random engine.
-
-    This engine is guaranteed to be deterministic, but by
-    default will be randomly seeded. It is NOT cryptographically
-    secure and MUST NOT be used to generate randomness that
-    will be used for keys, secure cookies, IVs, padding, etc.
-
-    Each thread gets its own instance of the engine which
-    will be randomly seeded.
-*/
+/**
+ * Return the default random engine.
+ *
+ * This engine is guaranteed to be deterministic, but by
+ * default will be randomly seeded. It is NOT cryptographically
+ * secure and MUST NOT be used to generate randomness that
+ * will be used for keys, secure cookies, IVs, padding, etc.
+ *
+ * Each thread gets its own instance of the engine which
+ * will be randomly seeded.
+ */
 inline beast::xor_shift_engine&
 defaultPrng()
 {
@@ -70,25 +71,26 @@ defaultPrng()
     return kEngine;
 }
 
-/** Return a uniformly distributed random integer.
-
-    @param min The smallest value to return. If not specified
-               the value defaults to 0.
-    @param max The largest value to return. If not specified
-               the value defaults to the largest value that
-               can be represented.
-
-    The randomness is generated by the specified engine (or
-    the default engine if one is not specified). The result
-    is cryptographically secure only when the engine passed
-    into the function is cryptographically secure.
-
-    @note The range is always a closed interval, so calling
-          rand_int(-5, 15) can return any integer in the
-          closed interval [-5, 15]; similarly, calling
-          rand_int(7) can return any integer in the closed
-          interval [0, 7].
-*/
+/**
+ * Return a uniformly distributed random integer.
+ *
+ * @param min The smallest value to return. If not specified
+ *            the value defaults to 0.
+ * @param max The largest value to return. If not specified
+ *            the value defaults to the largest value that
+ *            can be represented.
+ *
+ * The randomness is generated by the specified engine (or
+ * the default engine if one is not specified). The result
+ * is cryptographically secure only when the engine passed
+ * into the function is cryptographically secure.
+ *
+ * @note The range is always a closed interval, so calling
+ *       rand_int(-5, 15) can return any integer in the
+ *       closed interval [-5, 15]; similarly, calling
+ *       rand_int(7) can return any integer in the closed
+ *       interval [0, 7].
+ */
 /** @{ */
 template <class Engine, class Integral>
 Integral
@@ -144,7 +146,9 @@ randInt()
 }
 /** @} */
 
-/** Return a random byte */
+/**
+ * Return a random byte
+ */
 /** @{ */
 template <class Byte, class Engine>
 Byte
@@ -166,7 +170,9 @@ randByte()
 }
 /** @} */
 
-/** Return a random boolean value */
+/**
+ * Return a random boolean value
+ */
 /** @{ */
 template <class Engine>
 inline bool

include/xrpl/basics/scope.h

@@ -156,41 +156,41 @@ template <class EF>
 ScopeSuccess(EF) -> ScopeSuccess<EF>;
 
 /**
-    Automatically unlocks and re-locks a unique_lock object.
-
-    This is the reverse of a std::unique_lock object - instead of locking the
-   mutex for the lifetime of this object, it unlocks it.
-
-    Make sure you don't try to unlock mutexes that aren't actually locked!
-
-    This is essentially a less-versatile boost::reverse_lock.
-
-    e.g. @code
-
-    std::mutex mut;
-
-    for (;;)
-    {
-        std::unique_lock myScopedLock{mut};
-        // mut is now locked
-
-        ... do some stuff with it locked ..
-
-        while (xyz)
-        {
-            ... do some stuff with it locked ..
-
-            scope_unlock unlocker{myScopedLock};
-
-            // mut is now unlocked for the remainder of this block,
-            // and re-locked at the end.
-
-            ...do some stuff with it unlocked ...
-        }  // mut gets locked here.
-
-    }  // mut gets unlocked here
-    @endcode
-*/
+ * Automatically unlocks and re-locks a unique_lock object.
+ *
+ * This is the reverse of a std::unique_lock object - instead of locking the
+ * mutex for the lifetime of this object, it unlocks it.
+ *
+ * Make sure you don't try to unlock mutexes that aren't actually locked!
+ *
+ * This is essentially a less-versatile boost::reverse_lock.
+ *
+ * e.g. @code
+ *
+ * std::mutex mut;
+ *
+ * for (;;)
+ * {
+ *     std::unique_lock myScopedLock{mut};
+ *     // mut is now locked
+ *
+ *     ... do some stuff with it locked ..
+ *
+ *     while (xyz)
+ *     {
+ *         ... do some stuff with it locked ..
+ *
+ *         scope_unlock unlocker{myScopedLock};
+ *
+ *         // mut is now unlocked for the remainder of this block,
+ *         // and re-locked at the end.
+ *
+ *         ...do some stuff with it unlocked ...
+ *     }  // mut gets locked here.
+ *
+ * }  // mut gets unlocked here
+ * @endcode
+ */
 
 template <class Mutex>
 class ScopeUnlock

include/xrpl/basics/spinlock.h

@@ -15,15 +15,16 @@
 namespace xrpl {
 
 namespace detail {
-/** Inform the processor that we are in a tight spin-wait loop.
-
-    Spinlocks caught in tight loops can result in the processor's pipeline
-    filling up with comparison operations, resulting in a misprediction at
-    the time the lock is finally acquired, necessitating pipeline flushing
-    which is ridiculously expensive and results in very high latency.
-
-    This function instructs the processor to "pause" for some architecture
-    specific amount of time, to prevent this.
+/**
+ * Inform the processor that we are in a tight spin-wait loop.
+ *
+ * Spinlocks caught in tight loops can result in the processor's pipeline
+ * filling up with comparison operations, resulting in a misprediction at
+ * the time the lock is finally acquired, necessitating pipeline flushing
+ * which is ridiculously expensive and results in very high latency.
+ *
+ * This function instructs the processor to "pause" for some architecture
+ * specific amount of time, to prevent this.
  */
 inline void
 spinPause() noexcept
@@ -38,37 +39,39 @@ spinPause() noexcept
 }  // namespace detail
 
 /** @{ */
-/** Classes to handle arrays of spinlocks packed into a single atomic integer:
-
-    Packed spinlocks allow for tremendously space-efficient lock-sharding
-    but they come at a cost.
-
-    First, the implementation is necessarily low-level and uses advanced
-    features like memory ordering and highly platform-specific tricks to
-    maximize performance. This imposes a significant and ongoing cost to
-    developers.
-
-    Second, and perhaps most important, is that the packing of multiple
-    locks into a single integer which, albeit space-efficient, also has
-    performance implications stemming from data dependencies, increased
-    cache-coherency traffic between processors and heavier loads on the
-    processor's load/store units.
-
-    To be sure, these locks can have advantages but they are definitely
-    not general purpose locks and should not be thought of or used that
-    way. The use cases for them are likely few and far between; without
-    a compelling reason to use them, backed by profiling data, it might
-    be best to use one of the standard locking primitives instead. Note
-    that in most common platforms, `std::mutex` is so heavily optimized
-    that it can, usually, outperform spinlocks.
-
-    @tparam T An unsigned integral type (e.g. std::uint16_t)
+/**
+ * Classes to handle arrays of spinlocks packed into a single atomic integer:
+ *
+ * Packed spinlocks allow for tremendously space-efficient lock-sharding
+ * but they come at a cost.
+ *
+ * First, the implementation is necessarily low-level and uses advanced
+ * features like memory ordering and highly platform-specific tricks to
+ * maximize performance. This imposes a significant and ongoing cost to
+ * developers.
+ *
+ * Second, and perhaps most important, is that the packing of multiple
+ * locks into a single integer which, albeit space-efficient, also has
+ * performance implications stemming from data dependencies, increased
+ * cache-coherency traffic between processors and heavier loads on the
+ * processor's load/store units.
+ *
+ * To be sure, these locks can have advantages but they are definitely
+ * not general purpose locks and should not be thought of or used that
+ * way. The use cases for them are likely few and far between; without
+ * a compelling reason to use them, backed by profiling data, it might
+ * be best to use one of the standard locking primitives instead. Note
+ * that in most common platforms, `std::mutex` is so heavily optimized
+ * that it can, usually, outperform spinlocks.
+ *
+ * @tparam T An unsigned integral type (e.g. std::uint16_t)
  */
 
-/** A class that grabs a single packed spinlock from an atomic integer.
-
-    This class meets the requirements of Lockable:
-        https://en.cppreference.com/w/cpp/named_req/Lockable
+/**
+ * A class that grabs a single packed spinlock from an atomic integer.
+ *
+ * This class meets the requirements of Lockable:
+ *     https://en.cppreference.com/w/cpp/named_req/Lockable
  */
 template <class T>
 class PackedSpinlock
@@ -91,13 +94,14 @@ public:
     PackedSpinlock&
     operator=(PackedSpinlock const&) = delete;
 
-    /** A single spinlock packed inside the specified atomic
-
-        @param lock The atomic integer inside which the spinlock is packed.
-        @param index The index of the spinlock this object acquires.
-
-        @note For performance reasons, you should strive to have `lock` be
-              on a cacheline by itself.
+    /**
+     * A single spinlock packed inside the specified atomic
+     *
+     * @param lock The atomic integer inside which the spinlock is packed.
+     * @param index The index of the spinlock this object acquires.
+     *
+     * @note For performance reasons, you should strive to have `lock` be
+     *       on a cacheline by itself.
      */
     PackedSpinlock(std::atomic<T>& lock, int index) : bits_(lock), mask_(static_cast<T>(1) << index)
     {
@@ -133,17 +137,18 @@ public:
     }
 };
 
-/** A spinlock implemented on top of an atomic integer.
-
-    @note Using `packed_spinlock` and `spinlock` against the same underlying
-          atomic integer can result in `spinlock` not being able to actually
-          acquire the lock during periods of high contention, because of how
-          the two locks operate: `spinlock` will spin trying to grab all the
-          bits at once, whereas any given `packed_spinlock` will only try to
-          grab one bit at a time. Caveat emptor.
-
-    This class meets the requirements of Lockable:
-        https://en.cppreference.com/w/cpp/named_req/Lockable
+/**
+ * A spinlock implemented on top of an atomic integer.
+ *
+ * @note Using `packed_spinlock` and `spinlock` against the same underlying
+ *       atomic integer can result in `spinlock` not being able to actually
+ *       acquire the lock during periods of high contention, because of how
+ *       the two locks operate: `spinlock` will spin trying to grab all the
+ *       bits at once, whereas any given `packed_spinlock` will only try to
+ *       grab one bit at a time. Caveat emptor.
+ *
+ * This class meets the requirements of Lockable:
+ *     https://en.cppreference.com/w/cpp/named_req/Lockable
  */
 template <class T>
 class Spinlock
@@ -159,12 +164,13 @@ public:
     Spinlock&
     operator=(Spinlock const&) = delete;
 
-    /** Grabs the
-
-        @param lock The atomic integer to spin against.
-
-        @note For performance reasons, you should strive to have `lock` be
-              on a cacheline by itself.
+    /**
+     * Grabs the
+     *
+     * @param lock The atomic integer to spin against.
+     *
+     * @note For performance reasons, you should strive to have `lock` be
+     *       on a cacheline by itself.
      */
     Spinlock(std::atomic<T>& lock) : lock_(lock)
     {

include/xrpl/basics/tagged_integer.h

@@ -12,17 +12,18 @@
 
 namespace xrpl {
 
-/** A type-safe wrap around standard integral types
-
-    The tag is used to implement type safety, catching mismatched types at
-    compile time. Multiple instantiations wrapping the same underlying integral
-    type are distinct types (distinguished by tag) and will not interoperate. A
-    tagged_integer supports all the usual assignment, arithmetic, comparison and
-    shifting operations defined for the underlying type
-
-    The tag is not meant as a unit, which would require restricting the set of
-    allowed arithmetic operations.
-*/
+/**
+ * A type-safe wrap around standard integral types
+ *
+ * The tag is used to implement type safety, catching mismatched types at
+ * compile time. Multiple instantiations wrapping the same underlying integral
+ * type are distinct types (distinguished by tag) and will not interoperate. A
+ * tagged_integer supports all the usual assignment, arithmetic, comparison and
+ * shifting operations defined for the underlying type
+ *
+ * The tag is not meant as a unit, which would require restricting the set of
+ * allowed arithmetic operations.
+ */
 template <class Int, class Tag>
 class TaggedInteger : boost::totally_ordered<
                           TaggedInteger<Int, Tag>,

include/xrpl/beast/asio/io_latency_probe.h

@@ -14,7 +14,9 @@
 
 namespace beast {
 
-/** Measures handler latency on an io_context queue. */
+/**
+ * Measures handler latency on an io_context queue.
+ */
 template <class Clock>
 class IOLatencyProbe
 {
@@ -42,7 +44,9 @@ public:
         cancel(lock, true);
     }
 
-    /** Return the io_context associated with the latency probe. */
+    /**
+     * Return the io_context associated with the latency probe.
+     */
     /** @{ */
     boost::asio::io_context&
     getIoContext()
@@ -57,9 +61,10 @@ public:
     }
     /** @} */
 
-    /** Cancel all pending i/o.
-        Any handlers which have already been queued will still be called.
-    */
+    /**
+     * Cancel all pending i/o.
+     * Any handlers which have already been queued will still be called.
+     */
     /** @{ */
     void
     cancel()
@@ -76,10 +81,11 @@ public:
     }
     /** @} */
 
-    /** Measure one sample of i/o latency.
-        Handler will be called with this signature:
-            void Handler (Duration d);
-    */
+    /**
+     * Measure one sample of i/o latency.
+     * Handler will be called with this signature:
+     *     void Handler (Duration d);
+     */
     template <class Handler>
     void
     sampleOne(Handler&& handler)
@@ -91,10 +97,11 @@ public:
             ios_, SampleOp<Handler>(std::forward<Handler>(handler), Clock::now(), false, this));
     }
 
-    /** Initiate continuous i/o latency sampling.
-        Handler will be called with this signature:
-            void Handler (std::chrono::milliseconds);
-    */
+    /**
+     * Initiate continuous i/o latency sampling.
+     * Handler will be called with this signature:
+     *     void Handler (std::chrono::milliseconds);
+     */
     template <class Handler>
     void
     sample(Handler&& handler)

include/xrpl/beast/clock/abstract_clock.h

@@ -2,34 +2,35 @@
 
 namespace beast {
 
-/** Abstract interface to a clock.
-
-    This makes now() a member function instead of a static member, so
-    an instance of the class can be dependency injected, facilitating
-    unit tests where time may be controlled.
-
-    An abstract_clock inherits all the nested types of the Clock
-    template parameter.
-
-    Example:
-
-    @code
-
-    struct Implementation
-    {
-        using clock_type = abstract_clock <std::chrono::steady_clock>;
-        clock_type& clock_;
-        explicit Implementation (clock_type& clock)
-            : clock_(clock)
-        {
-        }
-    };
-
-    @endcode
-
-    @tparam Clock A type meeting these requirements:
-        http://en.cppreference.com/w/cpp/concept/Clock
-*/
+/**
+ * Abstract interface to a clock.
+ *
+ * This makes now() a member function instead of a static member, so
+ * an instance of the class can be dependency injected, facilitating
+ * unit tests where time may be controlled.
+ *
+ * An abstract_clock inherits all the nested types of the Clock
+ * template parameter.
+ *
+ * Example:
+ *
+ * @code
+ *
+ * struct Implementation
+ * {
+ *     using clock_type = abstract_clock <std::chrono::steady_clock>;
+ *     clock_type& clock_;
+ *     explicit Implementation (clock_type& clock)
+ *         : clock_(clock)
+ *     {
+ *     }
+ * };
+ *
+ * @endcode
+ *
+ * @tparam Clock A type meeting these requirements:
+ *     http://en.cppreference.com/w/cpp/concept/Clock
+ */
 template <class Clock>
 class AbstractClock
 {
@@ -46,7 +47,9 @@ public:
     AbstractClock() = default;
     AbstractClock(AbstractClock const&) = default;
 
-    /** Returns the current time. */
+    /**
+     * Returns the current time.
+     */
     [[nodiscard]] virtual time_point
     now() const = 0;
 };
@@ -74,11 +77,12 @@ struct AbstractClockWrapper : public AbstractClock<Facade>
 
 //------------------------------------------------------------------------------
 
-/** Returns a global instance of an abstract clock.
-    @tparam Facade A type meeting these requirements:
-        http://en.cppreference.com/w/cpp/concept/Clock
-    @tparam Clock The actual concrete clock to use.
-*/
+/**
+ * Returns a global instance of an abstract clock.
+ * @tparam Facade A type meeting these requirements:
+ *     http://en.cppreference.com/w/cpp/concept/Clock
+ * @tparam Clock The actual concrete clock to use.
+ */
 template <class Facade, class Clock = Facade>
 AbstractClock<Facade>&
 getAbstractClock()

include/xrpl/beast/clock/basic_seconds_clock.h

@@ -4,15 +4,16 @@
 
 namespace beast {
 
-/** A clock whose minimum resolution is one second.
-
-    The purpose of this class is to optimize the performance of the now()
-    member function call. It uses a dedicated thread that wakes up at least
-    once per second to sample the requested trivial clock.
-
-    @tparam Clock A type meeting these requirements:
-        http://en.cppreference.com/w/cpp/concept/Clock
-*/
+/**
+ * A clock whose minimum resolution is one second.
+ *
+ * The purpose of this class is to optimize the performance of the now()
+ * member function call. It uses a dedicated thread that wakes up at least
+ * once per second to sample the requested trivial clock.
+ *
+ * @tparam Clock A type meeting these requirements:
+ *     http://en.cppreference.com/w/cpp/concept/Clock
+ */
 class BasicSecondsClock
 {
 public:

include/xrpl/beast/clock/manual_clock.h

@@ -7,15 +7,16 @@
 
 namespace beast {
 
-/** Manual clock implementation.
-
-    This concrete class implements the @ref abstract_clock interface and
-    allows the time to be advanced manually, mainly for the purpose of
-    providing a clock in unit tests.
-
-    @tparam Clock A type meeting these requirements:
-        http://en.cppreference.com/w/cpp/concept/Clock
-*/
+/**
+ * Manual clock implementation.
+ *
+ * This concrete class implements the @ref abstract_clock interface and
+ * allows the time to be advanced manually, mainly for the purpose of
+ * providing a clock in unit tests.
+ *
+ * @tparam Clock A type meeting these requirements:
+ *     http://en.cppreference.com/w/cpp/concept/Clock
+ */
 template <class Clock>
 class ManualClock : public AbstractClock<Clock>
 {
@@ -38,7 +39,9 @@ public:
         return now_;
     }
 
-    /** Set the current time of the manual clock. */
+    /**
+     * Set the current time of the manual clock.
+     */
     void
     set(time_point const& when)
     {
@@ -48,7 +51,9 @@ public:
         now_ = when;
     }
 
-    /** Convenience for setting the time in seconds from epoch. */
+    /**
+     * Convenience for setting the time in seconds from epoch.
+     */
     template <class Integer>
     void
     set(Integer secondsFromEpoch)
@@ -56,7 +61,9 @@ public:
         set(time_point(duration(std::chrono::seconds(secondsFromEpoch))));
     }
 
-    /** Advance the clock by a duration. */
+    /**
+     * Advance the clock by a duration.
+     */
     template <class Rep, class Period>
     void
     advance(std::chrono::duration<Rep, Period> const& elapsed)
@@ -67,7 +74,9 @@ public:
         now_ += elapsed;
     }
 
-    /** Convenience for advancing the clock by one second. */
+    /**
+     * Convenience for advancing the clock by one second.
+     */
     ManualClock&
     operator++()
     {

include/xrpl/beast/container/aged_container_utility.h

@@ -7,7 +7,9 @@
 
 namespace beast {
 
-/** Expire aged container items past the specified age. */
+/**
+ * Expire aged container items past the specified age.
+ */
 template <class AgedContainer, class Rep, class Period>
 std::size_t
 expire(AgedContainer& c, std::chrono::duration<Rep, Period> const& age)

include/xrpl/beast/container/detail/aged_ordered_container.h

@@ -39,22 +39,23 @@ struct IsBoostReverseIterator<boost::intrusive::reverse_iterator<It>> : std::tru
     explicit IsBoostReverseIterator() = default;
 };
 
-/** Associative container where each element is also indexed by time.
-
-    This container mirrors the interface of the standard library ordered
-    associative containers, with the addition that each element is associated
-    with a `when` `time_point` which is obtained from the value of the clock's
-    `now`. The function `touch` updates the time for an element to the current
-    time as reported by the clock.
-
-    An extra set of iterator types and member functions are provided in the
-    `chronological` memberspace that allow traversal in temporal or reverse
-    temporal order. This container is useful as a building block for caches
-    whose items expire after a certain amount of time. The chronological
-    iterators allow for fully customizable expiration strategies.
-
-    @see aged_set, aged_multiset, aged_map, aged_multimap
-*/
+/**
+ * Associative container where each element is also indexed by time.
+ *
+ * This container mirrors the interface of the standard library ordered
+ * associative containers, with the addition that each element is associated
+ * with a `when` `time_point` which is obtained from the value of the clock's
+ * `now`. The function `touch` updates the time for an element to the current
+ * time as reported by the clock.
+ *
+ * An extra set of iterator types and member functions are provided in the
+ * `chronological` memberspace that allow traversal in temporal or reverse
+ * temporal order. This container is useful as a building block for caches
+ * whose items expire after a certain amount of time. The chronological
+ * iterators allow for fully customizable expiration strategies.
+ *
+ * @see aged_set, aged_multiset, aged_map, aged_multimap
+ */
 template <
     bool IsMulti,
     bool IsMap,
@@ -1795,7 +1796,9 @@ swap(
     lhs.swap(rhs);
 }
 
-/** Expire aged container items past the specified age. */
+/**
+ * Expire aged container items past the specified age.
+ */
 template <
     bool IsMulti,
     bool IsMap,

include/xrpl/beast/container/detail/aged_unordered_container.h

@@ -43,23 +43,24 @@ TODO
 namespace beast {
 namespace detail {
 
-/** Associative container where each element is also indexed by time.
-
-    This container mirrors the interface of the standard library unordered
-    associative containers, with the addition that each element is associated
-    with a `when` `time_point` which is obtained from the value of the clock's
-    `now`. The function `touch` updates the time for an element to the current
-    time as reported by the clock.
-
-    An extra set of iterator types and member functions are provided in the
-    `chronological` memberspace that allow traversal in temporal or reverse
-    temporal order. This container is useful as a building block for caches
-    whose items expire after a certain amount of time. The chronological
-    iterators allow for fully customizable expiration strategies.
-
-    @see aged_unordered_set, aged_unordered_multiset
-    @see aged_unordered_map, aged_unordered_multimap
-*/
+/**
+ * Associative container where each element is also indexed by time.
+ *
+ * This container mirrors the interface of the standard library unordered
+ * associative containers, with the addition that each element is associated
+ * with a `when` `time_point` which is obtained from the value of the clock's
+ * `now`. The function `touch` updates the time for an element to the current
+ * time as reported by the clock.
+ *
+ * An extra set of iterator types and member functions are provided in the
+ * `chronological` memberspace that allow traversal in temporal or reverse
+ * temporal order. This container is useful as a building block for caches
+ * whose items expire after a certain amount of time. The chronological
+ * iterators allow for fully customizable expiration strategies.
+ *
+ * @see aged_unordered_set, aged_unordered_multiset
+ * @see aged_unordered_map, aged_unordered_multimap
+ */
 template <
     bool IsMulti,
     bool IsMap,
@@ -2709,7 +2710,9 @@ swap(
     lhs.swap(rhs);
 }
 
-/** Expire aged container items past the specified age. */
+/**
+ * Expire aged container items past the specified age.
+ */
 template <
     bool IsMulti,
     bool IsMap,

include/xrpl/beast/core/CurrentThreadName.h

@@ -12,9 +12,10 @@
 
 namespace beast {
 
-/** Changes the name of the caller thread.
-    Different OSes may place different length or content limits on this name.
-*/
+/**
+ * Changes the name of the caller thread.
+ * Different OSes may place different length or content limits on this name.
+ */
 void
 setCurrentThreadName(std::string_view newThreadName);
 
@@ -24,13 +25,14 @@ setCurrentThreadName(std::string_view newThreadName);
 // Maximum number of characters is therefore 15.
 constexpr std::size_t kMaxThreadNameLength = 15;
 
-/** Sets the name of the caller thread with compile-time size checking.
-    @tparam N The size of the string literal including null terminator
-    @param newThreadName A string literal to set as the thread name
-
-    This template overload enforces that thread names are at most 16 characters
-    (including null terminator) at compile time, matching Linux's limit.
-*/
+/**
+ * Sets the name of the caller thread with compile-time size checking.
+ * @tparam N The size of the string literal including null terminator
+ * @param newThreadName A string literal to set as the thread name
+ *
+ * This template overload enforces that thread names are at most 16 characters
+ * (including null terminator) at compile time, matching Linux's limit.
+ */
 template <std::size_t N>
 void
 setCurrentThreadName(char const (&newThreadName)[N])
@@ -41,14 +43,15 @@ setCurrentThreadName(char const (&newThreadName)[N])
 }
 #endif
 
-/** Returns the name of the caller thread.
-
-    The name returned is the name as set by a call to setCurrentThreadName().
-    If the thread name is set by an external force, then that name change
-    will not be reported.
-
-    If no name has ever been set, then the empty string is returned.
-*/
+/**
+ * Returns the name of the caller thread.
+ *
+ * The name returned is the name as set by a call to setCurrentThreadName().
+ * If the thread name is set by an external force, then that name change
+ * will not be reported.
+ *
+ * If no name has ever been set, then the empty string is returned.
+ */
 std::string
 getCurrentThreadName();
 

include/xrpl/beast/core/LexicalCast.h

@@ -163,17 +163,19 @@ struct LexicalCast<Out, char*>
 
 //------------------------------------------------------------------------------
 
-/** Thrown when a conversion is not possible with LexicalCast.
-    Only used in the throw variants of lexicalCast.
-*/
+/**
+ * Thrown when a conversion is not possible with LexicalCast.
+ * Only used in the throw variants of lexicalCast.
+ */
 struct BadLexicalCast : public std::bad_cast
 {
     explicit BadLexicalCast() = default;
 };
 
-/** Intelligently convert from one type to another.
-    @return `false` if there was a parsing or range error
-*/
+/**
+ * Intelligently convert from one type to another.
+ * @return `false` if there was a parsing or range error
+ */
 template <class Out, class In>
 bool
 lexicalCastChecked(Out& out, In in)
@@ -181,12 +183,13 @@ lexicalCastChecked(Out& out, In in)
     return detail::LexicalCast<Out, In>()(out, in);
 }
 
-/** Convert from one type to another, throw on error
-
-    An exception of type BadLexicalCast is thrown if the conversion fails.
-
-    @return The new type.
-*/
+/**
+ * Convert from one type to another, throw on error
+ *
+ * An exception of type BadLexicalCast is thrown if the conversion fails.
+ *
+ * @return The new type.
+ */
 template <class Out, class In>
 Out
 lexicalCastThrow(In in)
@@ -197,11 +200,12 @@ lexicalCastThrow(In in)
     throw BadLexicalCast();
 }
 
-/** Convert from one type to another.
-
-    @param defaultValue The value returned if parsing fails
-    @return The new type.
-*/
+/**
+ * Convert from one type to another.
+ *
+ * @param defaultValue The value returned if parsing fails
+ * @return The new type.
+ */
 template <class Out, class In>
 Out
 lexicalCast(In in, Out defaultValue = Out())

include/xrpl/beast/core/List.h

@@ -11,7 +11,9 @@ class List;
 
 namespace detail {
 
-/** Copy `const` attribute from T to U if present. */
+/**
+ * Copy `const` attribute from T to U if present.
+ */
 /** @{ */
 template <typename T, typename U>
 struct CopyConst
@@ -153,110 +155,111 @@ private:
 
 }  // namespace detail
 
-/** Intrusive doubly linked list.
-
-    This intrusive List is a container similar in operation to std::list in the
-    Standard Template Library (STL). Like all @ref intrusive containers, List
-    requires you to first derive your class from List<>::Node:
-
-    @code
-
-    struct Object : List <Object>::Node
-    {
-        explicit Object (int value) : value_ (value)
-        {
-        }
-
-        int value_;
-    };
-
-    @endcode
-
-    Now we define the list, and add a couple of items.
-
-    @code
-
-    List <Object> list;
-
-    list.push_back (* (new Object (1)));
-    list.push_back (* (new Object (2)));
-
-    @endcode
-
-    For compatibility with the standard containers, push_back() expects a
-    reference to the object. Unlike the standard container, however, push_back()
-    places the actual object in the list and not a copy-constructed duplicate.
-
-    Iterating over the list follows the same idiom as the STL:
-
-    @code
-
-    for (List <Object>::iterator iter = list.begin(); iter != list.end; ++iter)
-        std::cout << iter->value_;
-
-    @endcode
-
-    You can even use BOOST_FOREACH, or range based for loops:
-
-    @code
-
-    BOOST_FOREACH (Object& object, list)  // boost only
-        std::cout << object.value_;
-
-    for (Object& object : list)           // C++11 only
-        std::cout << object.value_;
-
-    @endcode
-
-    Because List is mostly STL compliant, it can be passed into STL algorithms:
-    e.g. `std::for_each()` or `std::find_first_of()`.
-
-    In general, objects placed into a List should be dynamically allocated
-    although this cannot be enforced at compile time. Since the caller provides
-    the storage for the object, the caller is also responsible for deleting the
-    object. An object still exists after being removed from a List, until the
-    caller deletes it. This means an element can be moved from one List to
-    another with practically no overhead.
-
-    Unlike the standard containers, an object may only exist in one list at a
-    time, unless special preparations are made. The Tag template parameter is
-    used to distinguish between different list types for the same object,
-    allowing the object to exist in more than one list simultaneously.
-
-    For example, consider an actor system where a global list of actors is
-    maintained, so that they can each be periodically receive processing
-    time. We wish to also maintain a list of the subset of actors that require
-    a domain-dependent update. To achieve this, we declare two tags, the
-    associated list types, and the list element thusly:
-
-    @code
-
-    struct Actor;         // Forward declaration required
-
-    struct ProcessTag { };
-    struct UpdateTag { };
-
-    using ProcessList = List <Actor, ProcessTag>;
-    using UpdateList = List <Actor, UpdateTag>;
-
-    // Derive from both node types so we can be in each list at once.
-    //
-    struct Actor : ProcessList::Node, UpdateList::Node
-    {
-        bool process ();    // returns true if we need an update
-        void update ();
-    };
-
-    @endcode
-
-    @tparam T The base type of element which the list will store
-                    pointers to.
-
-    @tparam Tag An optional unique type name used to distinguish lists and
-   nodes, when the object can exist in multiple lists simultaneously.
-
-    @ingroup beast_core intrusive
-*/
+/**
+ * Intrusive doubly linked list.
+ *
+ * This intrusive List is a container similar in operation to std::list in the
+ * Standard Template Library (STL). Like all @ref intrusive containers, List
+ * requires you to first derive your class from List<>::Node:
+ *
+ * @code
+ *
+ * struct Object : List <Object>::Node
+ * {
+ *     explicit Object (int value) : value_ (value)
+ *     {
+ *     }
+ *
+ *     int value_;
+ * };
+ *
+ * @endcode
+ *
+ * Now we define the list, and add a couple of items.
+ *
+ * @code
+ *
+ * List <Object> list;
+ *
+ * list.push_back (* (new Object (1)));
+ * list.push_back (* (new Object (2)));
+ *
+ * @endcode
+ *
+ * For compatibility with the standard containers, push_back() expects a
+ * reference to the object. Unlike the standard container, however, push_back()
+ * places the actual object in the list and not a copy-constructed duplicate.
+ *
+ * Iterating over the list follows the same idiom as the STL:
+ *
+ * @code
+ *
+ * for (List <Object>::iterator iter = list.begin(); iter != list.end; ++iter)
+ *     std::cout << iter->value_;
+ *
+ * @endcode
+ *
+ * You can even use BOOST_FOREACH, or range based for loops:
+ *
+ * @code
+ *
+ * BOOST_FOREACH (Object& object, list)  // boost only
+ *     std::cout << object.value_;
+ *
+ * for (Object& object : list)           // C++11 only
+ *     std::cout << object.value_;
+ *
+ * @endcode
+ *
+ * Because List is mostly STL compliant, it can be passed into STL algorithms:
+ * e.g. `std::for_each()` or `std::find_first_of()`.
+ *
+ * In general, objects placed into a List should be dynamically allocated
+ * although this cannot be enforced at compile time. Since the caller provides
+ * the storage for the object, the caller is also responsible for deleting the
+ * object. An object still exists after being removed from a List, until the
+ * caller deletes it. This means an element can be moved from one List to
+ * another with practically no overhead.
+ *
+ * Unlike the standard containers, an object may only exist in one list at a
+ * time, unless special preparations are made. The Tag template parameter is
+ * used to distinguish between different list types for the same object,
+ * allowing the object to exist in more than one list simultaneously.
+ *
+ * For example, consider an actor system where a global list of actors is
+ * maintained, so that they can each be periodically receive processing
+ * time. We wish to also maintain a list of the subset of actors that require
+ * a domain-dependent update. To achieve this, we declare two tags, the
+ * associated list types, and the list element thusly:
+ *
+ * @code
+ *
+ * struct Actor;         // Forward declaration required
+ *
+ * struct ProcessTag { };
+ * struct UpdateTag { };
+ *
+ * using ProcessList = List <Actor, ProcessTag>;
+ * using UpdateList = List <Actor, UpdateTag>;
+ *
+ * // Derive from both node types so we can be in each list at once.
+ * //
+ * struct Actor : ProcessList::Node, UpdateList::Node
+ * {
+ *     bool process ();    // returns true if we need an update
+ *     void update ();
+ * };
+ *
+ * @endcode
+ *
+ * @tparam T The base type of element which the list will store
+ *                 pointers to.
+ *
+ * @tparam Tag An optional unique type name used to distinguish lists and
+ * nodes, when the object can exist in multiple lists simultaneously.
+ *
+ * @ingroup beast_core intrusive
+ */
 template <typename T, typename Tag = void>
 class List
 {
@@ -274,7 +277,9 @@ public:
     using iterator = detail::ListIterator<Node>;
     using const_iterator = detail::ListIterator<Node const>;
 
-    /** Create an empty list. */
+    /**
+     * Create an empty list.
+     */
     List()
     {
         head_.prev_ = nullptr;  // identifies the head
@@ -286,119 +291,133 @@ public:
     List&
     operator=(List const&) = delete;
 
-    /** Determine if the list is empty.
-        @return `true` if the list is empty.
-    */
+    /**
+     * Determine if the list is empty.
+     * @return `true` if the list is empty.
+     */
     [[nodiscard]] bool
     empty() const noexcept
     {
         return size() == 0;
     }
 
-    /** Returns the number of elements in the list. */
+    /**
+     * Returns the number of elements in the list.
+     */
     [[nodiscard]] size_type
     size() const noexcept
     {
         return size_;
     }
 
-    /** Obtain a reference to the first element.
-        @invariant The list may not be empty.
-        @return A reference to the first element.
-    */
+    /**
+     * Obtain a reference to the first element.
+     * @invariant The list may not be empty.
+     * @return A reference to the first element.
+     */
     reference
     front() noexcept
     {
         return element_from(head_.next_);
     }
 
-    /** Obtain a const reference to the first element.
-        @invariant The list may not be empty.
-        @return A const reference to the first element.
-    */
+    /**
+     * Obtain a const reference to the first element.
+     * @invariant The list may not be empty.
+     * @return A const reference to the first element.
+     */
     [[nodiscard]] const_reference
     front() const noexcept
     {
         return element_from(head_.next_);
     }
 
-    /** Obtain a reference to the last element.
-        @invariant The list may not be empty.
-        @return A reference to the last element.
-    */
+    /**
+     * Obtain a reference to the last element.
+     * @invariant The list may not be empty.
+     * @return A reference to the last element.
+     */
     reference
     back() noexcept
     {
         return element_from(tail_.prev_);
     }
 
-    /** Obtain a const reference to the last element.
-        @invariant The list may not be empty.
-        @return A const reference to the last element.
-    */
+    /**
+     * Obtain a const reference to the last element.
+     * @invariant The list may not be empty.
+     * @return A const reference to the last element.
+     */
     [[nodiscard]] const_reference
     back() const noexcept
     {
         return element_from(tail_.prev_);
     }
 
-    /** Obtain an iterator to the beginning of the list.
-        @return An iterator pointing to the beginning of the list.
-    */
+    /**
+     * Obtain an iterator to the beginning of the list.
+     * @return An iterator pointing to the beginning of the list.
+     */
     iterator
     begin() noexcept
     {
         return iterator(head_.next_);
     }
 
-    /** Obtain a const iterator to the beginning of the list.
-        @return A const iterator pointing to the beginning of the list.
-    */
+    /**
+     * Obtain a const iterator to the beginning of the list.
+     * @return A const iterator pointing to the beginning of the list.
+     */
     [[nodiscard]] const_iterator
     begin() const noexcept
     {
         return const_iterator(head_.next_);
     }
 
-    /** Obtain a const iterator to the beginning of the list.
-        @return A const iterator pointing to the beginning of the list.
-    */
+    /**
+     * Obtain a const iterator to the beginning of the list.
+     * @return A const iterator pointing to the beginning of the list.
+     */
     [[nodiscard]] const_iterator
     cbegin() const noexcept
     {
         return const_iterator(head_.next_);
     }
 
-    /** Obtain a iterator to the end of the list.
-        @return An iterator pointing to the end of the list.
-    */
+    /**
+     * Obtain a iterator to the end of the list.
+     * @return An iterator pointing to the end of the list.
+     */
     iterator
     end() noexcept
     {
         return iterator(&tail_);
     }
 
-    /** Obtain a const iterator to the end of the list.
-        @return A constiterator pointing to the end of the list.
-    */
+    /**
+     * Obtain a const iterator to the end of the list.
+     * @return A constiterator pointing to the end of the list.
+     */
     [[nodiscard]] const_iterator
     end() const noexcept
     {
         return const_iterator(&tail_);
     }
 
-    /** Obtain a const iterator to the end of the list
-        @return A constiterator pointing to the end of the list.
-    */
+    /**
+     * Obtain a const iterator to the end of the list
+     * @return A constiterator pointing to the end of the list.
+     */
     [[nodiscard]] const_iterator
     cend() const noexcept
     {
         return const_iterator(&tail_);
     }
 
-    /** Clear the list.
-        @note This does not free the elements.
-    */
+    /**
+     * Clear the list.
+     * @note This does not free the elements.
+     */
     void
     clear() noexcept
     {
@@ -407,12 +426,13 @@ public:
         size_ = 0;
     }
 
-    /** Insert an element.
-        @invariant The element must not already be in the list.
-        @param pos The location to insert after.
-        @param element The element to insert.
-        @return An iterator pointing to the newly inserted element.
-    */
+    /**
+     * Insert an element.
+     * @invariant The element must not already be in the list.
+     * @param pos The location to insert after.
+     * @param element The element to insert.
+     * @return An iterator pointing to the newly inserted element.
+     */
     iterator
     insert(iterator pos, T& element) noexcept
     {
@@ -425,11 +445,12 @@ public:
         return iterator(node);
     }
 
-    /** Insert another list into this one.
-        The other list is cleared.
-        @param pos The location to insert after.
-        @param other The list to insert.
-    */
+    /**
+     * Insert another list into this one.
+     * The other list is cleared.
+     * @param pos The location to insert after.
+     * @param other The list to insert.
+     */
     void
     insert(iterator pos, List& other) noexcept
     {
@@ -445,11 +466,12 @@ public:
         }
     }
 
-    /** Remove an element.
-        @invariant The element must exist in the list.
-        @param pos An iterator pointing to the element to remove.
-        @return An iterator pointing to the next element after the one removed.
-    */
+    /**
+     * Remove an element.
+     * @invariant The element must exist in the list.
+     * @param pos An iterator pointing to the element to remove.
+     * @return An iterator pointing to the next element after the one removed.
+     */
     iterator
     erase(iterator pos) noexcept
     {
@@ -461,20 +483,22 @@ public:
         return pos;
     }
 
-    /** Insert an element at the beginning of the list.
-        @invariant The element must not exist in the list.
-        @param element The element to insert.
-    */
+    /**
+     * Insert an element at the beginning of the list.
+     * @invariant The element must not exist in the list.
+     * @param element The element to insert.
+     */
     iterator
     pushFront(T& element) noexcept
     {
         return insert(begin(), element);
     }
 
-    /** Remove the element at the beginning of the list.
-        @invariant The list must not be empty.
-        @return A reference to the popped element.
-    */
+    /**
+     * Remove the element at the beginning of the list.
+     * @invariant The list must not be empty.
+     * @return A reference to the popped element.
+     */
     T&
     popFront() noexcept
     {
@@ -483,20 +507,22 @@ public:
         return element;
     }
 
-    /** Append an element at the end of the list.
-        @invariant The element must not exist in the list.
-        @param element The element to append.
-    */
+    /**
+     * Append an element at the end of the list.
+     * @invariant The element must not exist in the list.
+     * @param element The element to append.
+     */
     iterator
     pushBack(T& element) noexcept
     {
         return insert(end(), element);
     }
 
-    /** Remove the element at the end of the list.
-        @invariant The list must not be empty.
-        @return A reference to the popped element.
-    */
+    /**
+     * Remove the element at the end of the list.
+     * @invariant The list must not be empty.
+     * @return A reference to the popped element.
+     */
     T&
     popBack() noexcept
     {
@@ -505,7 +531,9 @@ public:
         return element;
     }
 
-    /** Swap contents with another list. */
+    /**
+     * Swap contents with another list.
+     */
     void
     swap(List& other) noexcept
     {
@@ -515,42 +543,46 @@ public:
         append(temp);
     }
 
-    /** Insert another list at the beginning of this list.
-        The other list is cleared.
-        @param list The other list to insert.
-    */
+    /**
+     * Insert another list at the beginning of this list.
+     * The other list is cleared.
+     * @param list The other list to insert.
+     */
     iterator
     prepend(List& list) noexcept
     {
         return insert(begin(), list);
     }
 
-    /** Append another list at the end of this list.
-        The other list is cleared.
-        @param list the other list to append.
-    */
+    /**
+     * Append another list at the end of this list.
+     * The other list is cleared.
+     * @param list the other list to append.
+     */
     iterator
     append(List& list) noexcept
     {
         return insert(end(), list);
     }
 
-    /** Obtain an iterator from an element.
-        @invariant The element must exist in the list.
-        @param element The element to obtain an iterator for.
-        @return An iterator to the element.
-    */
+    /**
+     * Obtain an iterator from an element.
+     * @invariant The element must exist in the list.
+     * @param element The element to obtain an iterator for.
+     * @return An iterator to the element.
+     */
     iterator
     iteratorTo(T& element) const noexcept
     {
         return iterator(static_cast<Node*>(&element));
     }
 
-    /** Obtain a const iterator from an element.
-        @invariant The element must exist in the list.
-        @param element The element to obtain an iterator for.
-        @return A const iterator to the element.
-    */
+    /**
+     * Obtain a const iterator from an element.
+     * @invariant The element must exist in the list.
+     * @param element The element to obtain an iterator for.
+     * @return A const iterator to the element.
+     */
     [[nodiscard]] const_iterator
     constIteratorTo(T const& element) const noexcept
     {

include/xrpl/beast/core/LockFreeStack.h

@@ -103,18 +103,19 @@ operator!=(
 
 //------------------------------------------------------------------------------
 
-/** Multiple Producer, Multiple Consumer (MPMC) intrusive stack.
-
-    This stack is implemented using the same intrusive interface as List.
-    All mutations are lock-free.
-
-    The caller is responsible for preventing the "ABA" problem:
-        http://en.wikipedia.org/wiki/ABA_problem
-
-    @param Tag  A type name used to distinguish lists and nodes, for
-                putting objects in multiple lists. If this parameter is
-                omitted, the default tag is used.
-*/
+/**
+ * Multiple Producer, Multiple Consumer (MPMC) intrusive stack.
+ *
+ * This stack is implemented using the same intrusive interface as List.
+ * All mutations are lock-free.
+ *
+ * The caller is responsible for preventing the "ABA" problem:
+ *     http://en.wikipedia.org/wiki/ABA_problem
+ *
+ * @param Tag  A type name used to distinguish lists and nodes, for
+ *             putting objects in multiple lists. If this parameter is
+ *             omitted, the default tag is used.
+ */
 template <class Element, class Tag = void>
 class LockFreeStack
 {
@@ -162,24 +163,27 @@ public:
     LockFreeStack&
     operator=(LockFreeStack const&) = delete;
 
-    /** Returns true if the stack is empty. */
+    /**
+     * Returns true if the stack is empty.
+     */
     [[nodiscard]] bool
     empty() const
     {
         return head_.load() == &end_;
     }
 
-    /** Push a node onto the stack.
-        The caller is responsible for preventing the ABA problem.
-        This operation is lock-free.
-        Thread safety:
-            Safe to call from any thread.
-
-        @param node The node to push.
-
-        @return `true` if the stack was previously empty. If multiple threads
-                are attempting to push, only one will receive `true`.
-    */
+    /**
+     * Push a node onto the stack.
+     * The caller is responsible for preventing the ABA problem.
+     * This operation is lock-free.
+     * Thread safety:
+     *     Safe to call from any thread.
+     *
+     * @param node The node to push.
+     *
+     * @return `true` if the stack was previously empty. If multiple threads
+     *         are attempting to push, only one will receive `true`.
+     */
     // VFALCO NOTE Fix this, shouldn't it be a reference like intrusive list?
     bool
     pushFront(Node* node)
@@ -195,15 +199,16 @@ public:
         return first;
     }
 
-    /** Pop an element off the stack.
-        The caller is responsible for preventing the ABA problem.
-        This operation is lock-free.
-        Thread safety:
-            Safe to call from any thread.
-
-        @return The element that was popped, or `nullptr` if the stack
-                was empty.
-    */
+    /**
+     * Pop an element off the stack.
+     * The caller is responsible for preventing the ABA problem.
+     * This operation is lock-free.
+     * Thread safety:
+     *     Safe to call from any thread.
+     *
+     * @return The element that was popped, or `nullptr` if the stack
+     *         was empty.
+     */
     Element*
     popFront()
     {
@@ -219,12 +224,13 @@ public:
         return static_cast<Element*>(node);
     }
 
-    /** Return a forward iterator to the beginning or end of the stack.
-        Undefined behavior results if push_front or pop_front is called
-        while an iteration is in progress.
-        Thread safety:
-            Caller is responsible for synchronization.
-    */
+    /**
+     * Return a forward iterator to the beginning or end of the stack.
+     * Undefined behavior results if push_front or pop_front is called
+     * while an iteration is in progress.
+     * Thread safety:
+     *     Caller is responsible for synchronization.
+     */
     /** @{ */
     iterator
     begin()

include/xrpl/beast/core/SemanticVersion.h

@@ -6,13 +6,14 @@
 
 namespace beast {
 
-/** A Semantic Version number.
-
-    Identifies the build of a particular version of software using
-    the Semantic Versioning Specification described here:
-
-    http://semver.org/
-*/
+/**
+ * A Semantic Version number.
+ *
+ * Identifies the build of a particular version of software using
+ * the Semantic Versioning Specification described here:
+ *
+ * http://semver.org/
+ */
 class SemanticVersion
 {
 public:
@@ -29,14 +30,17 @@ public:
 
     SemanticVersion(std::string_view version);
 
-    /** Parse a semantic version string.
-        The parsing is as strict as possible.
-        @return `true` if the string was parsed.
-    */
+    /**
+     * Parse a semantic version string.
+     * The parsing is as strict as possible.
+     * @return `true` if the string was parsed.
+     */
     bool
     parse(std::string_view input);
 
-    /** Produce a string from semantic version components. */
+    /**
+     * Produce a string from semantic version components.
+     */
     [[nodiscard]] std::string
     print() const;
 
@@ -52,9 +56,10 @@ public:
     }
 };
 
-/** Compare two SemanticVersions against each other.
-    The comparison follows the rules as per the specification.
-*/
+/**
+ * Compare two SemanticVersions against each other.
+ * The comparison follows the rules as per the specification.
+ */
 int
 compare(SemanticVersion const& lhs, SemanticVersion const& rhs);
 

include/xrpl/beast/hash/hash_append.h

@@ -135,19 +135,20 @@ struct IsUniquelyRepresented<std::array<T, N>>
     explicit IsUniquelyRepresented() = default;
 };
 
-/** Metafunction returning `true` if the type can be hashed in one call.
-
-    For `IsContiguouslyHashable<T>::value` to be true, then for every
-    combination of possible values of `T` held in `x` and `y`,
-    if `x == y`, then it must be true that `memcmp(&x, &y, sizeof(T))`
-    return 0; i.e. that `x` and `y` are represented by the same bit pattern.
-
-    For example:  A two's complement `int` should be contiguously hashable.
-    Every bit pattern produces a unique value that does not compare equal to
-    any other bit pattern's value.  A IEEE floating point should not be
-    contiguously hashable because -0. and 0. have different bit patterns,
-    though they compare equal.
-*/
+/**
+ * Metafunction returning `true` if the type can be hashed in one call.
+ *
+ * For `IsContiguouslyHashable<T>::value` to be true, then for every
+ * combination of possible values of `T` held in `x` and `y`,
+ * if `x == y`, then it must be true that `memcmp(&x, &y, sizeof(T))`
+ * return 0; i.e. that `x` and `y` are represented by the same bit pattern.
+ *
+ * For example:  A two's complement `int` should be contiguously hashable.
+ * Every bit pattern produces a unique value that does not compare equal to
+ * any other bit pattern's value.  A IEEE floating point should not be
+ * contiguously hashable because -0. and 0. have different bit patterns,
+ * though they compare equal.
+ */
 /** @{ */
 template <class T, class HashAlgorithm>
 struct IsContiguouslyHashable
@@ -172,29 +173,30 @@ struct IsContiguouslyHashable<T[N], HashAlgorithm>
 
 //------------------------------------------------------------------------------
 
-/** Logically concatenate input data to a `Hasher`.
-
-    Hasher requirements:
-
-        `X` is the type `Hasher`
-        `h` is a value of type `x`
-        `p` is a value convertible to `void const*`
-        `n` is a value of type `std::size_t`, greater than zero
-
-        Expression:
-            `h.append (p, n);`
-        Throws:
-            Never
-        Effect:
-            Adds the input data to the hasher state.
-
-        Expression:
-            `static_cast<std::size_t>(j)`
-        Throws:
-            Never
-        Effect:
-            Returns the resulting hash of all the input data.
-*/
+/**
+ * Logically concatenate input data to a `Hasher`.
+ *
+ * Hasher requirements:
+ *
+ *     `X` is the type `Hasher`
+ *     `h` is a value of type `x`
+ *     `p` is a value convertible to `void const*`
+ *     `n` is a value of type `std::size_t`, greater than zero
+ *
+ *     Expression:
+ *         `h.append (p, n);`
+ *     Throws:
+ *         Never
+ *     Effect:
+ *         Adds the input data to the hasher state.
+ *
+ *     Expression:
+ *         `static_cast<std::size_t>(j)`
+ *     Throws:
+ *         Never
+ *     Effect:
+ *         Returns the resulting hash of all the input data.
+ */
 /** @{ */
 
 // scalars

include/xrpl/beast/insight/Collector.h

@@ -12,16 +12,17 @@
 
 namespace beast::insight {
 
-/** Interface for a manager that allows collection of metrics.
-
-    To export metrics from a class, pass and save a shared_ptr to this
-    interface in the class constructor. Create the metric objects
-    as desired (counters, events, gauges, meters, and an optional hook)
-    using the interface.
-
-    @see Counter, Event, Gauge, Hook, Meter
-    @see NullCollector, StatsDCollector
-*/
+/**
+ * Interface for a manager that allows collection of metrics.
+ *
+ * To export metrics from a class, pass and save a shared_ptr to this
+ * interface in the class constructor. Create the metric objects
+ * as desired (counters, events, gauges, meters, and an optional hook)
+ * using the interface.
+ *
+ * @see Counter, Event, Gauge, Hook, Meter
+ * @see NullCollector, StatsDCollector
+ */
 class Collector
 {
 public:
@@ -29,18 +30,19 @@ public:
 
     virtual ~Collector() = 0;
 
-    /** Create a hook.
-
-        A hook is called at each collection interval, on an implementation
-        defined thread. This is a convenience facility for gathering metrics
-        in the polling style. The typical usage is to update all the metrics
-        of interest in the handler.
-
-        Handler will be called with this signature:
-            void handler (void)
-
-        @see Hook
-    */
+    /**
+     * Create a hook.
+     *
+     * A hook is called at each collection interval, on an implementation
+     * defined thread. This is a convenience facility for gathering metrics
+     * in the polling style. The typical usage is to update all the metrics
+     * of interest in the handler.
+     *
+     * Handler will be called with this signature:
+     *     void handler (void)
+     *
+     * @see Hook
+     */
     /** @{ */
     template <class Handler>
     Hook
@@ -53,9 +55,10 @@ public:
     makeHook(HookImpl::HandlerType const& handler) = 0;
     /** @} */
 
-    /** Create a counter with the specified name.
-        @see Counter
-    */
+    /**
+     * Create a counter with the specified name.
+     * @see Counter
+     */
     /** @{ */
     virtual Counter
     makeCounter(std::string const& name) = 0;
@@ -69,9 +72,10 @@ public:
     }
     /** @} */
 
-    /** Create an event with the specified name.
-        @see Event
-    */
+    /**
+     * Create an event with the specified name.
+     * @see Event
+     */
     /** @{ */
     virtual Event
     makeEvent(std::string const& name) = 0;
@@ -85,9 +89,10 @@ public:
     }
     /** @} */
 
-    /** Create a gauge with the specified name.
-        @see Gauge
-    */
+    /**
+     * Create a gauge with the specified name.
+     * @see Gauge
+     */
     /** @{ */
     virtual Gauge
     makeGauge(std::string const& name) = 0;
@@ -101,9 +106,10 @@ public:
     }
     /** @} */
 
-    /** Create a meter with the specified name.
-        @see Meter
-    */
+    /**
+     * Create a meter with the specified name.
+     * @see Meter
+     */
     /** @{ */
     virtual Meter
     makeMeter(std::string const& name) = 0;

include/xrpl/beast/insight/Counter.h

@@ -7,34 +7,39 @@
 
 namespace beast::insight {
 
-/** A metric for measuring an integral value.
-
-    A counter is a gauge calculated at the server. The owner of the counter
-    may increment and decrement the value by an amount.
-
-    This is a lightweight reference wrapper which is cheap to copy and assign.
-    When the last reference goes away, the metric is no longer collected.
-*/
+/**
+ * A metric for measuring an integral value.
+ *
+ * A counter is a gauge calculated at the server. The owner of the counter
+ * may increment and decrement the value by an amount.
+ *
+ * This is a lightweight reference wrapper which is cheap to copy and assign.
+ * When the last reference goes away, the metric is no longer collected.
+ */
 class Counter final
 {
 public:
     using value_type = CounterImpl::value_type;
 
-    /** Create a null metric.
-        A null metric reports no information.
-    */
+    /**
+     * Create a null metric.
+     * A null metric reports no information.
+     */
     Counter() = default;
 
-    /** Create the metric reference the specified implementation.
-        Normally this won't be called directly. Instead, call the appropriate
-        factory function in the Collector interface.
-        @see Collector.
-    */
+    /**
+     * Create the metric reference the specified implementation.
+     * Normally this won't be called directly. Instead, call the appropriate
+     * factory function in the Collector interface.
+     * @see Collector.
+     */
     explicit Counter(std::shared_ptr<CounterImpl> impl) : impl_(std::move(impl))
     {
     }
 
-    /** Increment the counter. */
+    /**
+     * Increment the counter.
+     */
     /** @{ */
     void
     increment(value_type amount) const

include/xrpl/beast/insight/Event.h

@@ -8,35 +8,40 @@
 
 namespace beast::insight {
 
-/** A metric for reporting event timing.
-
-    An event is an operation that has an associated millisecond time, or
-    other integral value. Because events happen at a specific moment, the
-    metric only supports a push-style interface.
-
-    This is a lightweight reference wrapper which is cheap to copy and assign.
-    When the last reference goes away, the metric is no longer collected.
-*/
+/**
+ * A metric for reporting event timing.
+ *
+ * An event is an operation that has an associated millisecond time, or
+ * other integral value. Because events happen at a specific moment, the
+ * metric only supports a push-style interface.
+ *
+ * This is a lightweight reference wrapper which is cheap to copy and assign.
+ * When the last reference goes away, the metric is no longer collected.
+ */
 class Event final
 {
 public:
     using value_type = EventImpl::value_type;
 
-    /** Create a null metric.
-        A null metric reports no information.
-    */
+    /**
+     * Create a null metric.
+     * A null metric reports no information.
+     */
     Event() = default;
 
-    /** Create the metric reference the specified implementation.
-        Normally this won't be called directly. Instead, call the appropriate
-        factory function in the Collector interface.
-        @see Collector.
-    */
+    /**
+     * Create the metric reference the specified implementation.
+     * Normally this won't be called directly. Instead, call the appropriate
+     * factory function in the Collector interface.
+     * @see Collector.
+     */
     explicit Event(std::shared_ptr<EventImpl> impl) : impl_(std::move(impl))
     {
     }
 
-    /** Push an event notification. */
+    /**
+     * Push an event notification.
+     */
     template <class Rep, class Period>
     void
     notify(std::chrono::duration<Rep, Period> const& value) const

include/xrpl/beast/insight/Gauge.h

@@ -7,40 +7,44 @@
 
 namespace beast::insight {
 
-/** A metric for measuring an integral value.
-
-    A gauge is an instantaneous measurement of a value, like the gas gauge
-    in a car. The caller directly sets the value, or adjusts it by a
-    specified amount. The value is kept in the client rather than the collector.
-
-    This is a lightweight reference wrapper which is cheap to copy and assign.
-    When the last reference goes away, the metric is no longer collected.
-*/
+/**
+ * A metric for measuring an integral value.
+ *
+ * A gauge is an instantaneous measurement of a value, like the gas gauge
+ * in a car. The caller directly sets the value, or adjusts it by a
+ * specified amount. The value is kept in the client rather than the collector.
+ *
+ * This is a lightweight reference wrapper which is cheap to copy and assign.
+ * When the last reference goes away, the metric is no longer collected.
+ */
 class Gauge final
 {
 public:
     using value_type = GaugeImpl::value_type;
     using difference_type = GaugeImpl::difference_type;
 
-    /** Create a null metric.
-        A null metric reports no information.
-    */
+    /**
+     * Create a null metric.
+     * A null metric reports no information.
+     */
     Gauge() = default;
 
-    /** Create the metric reference the specified implementation.
-        Normally this won't be called directly. Instead, call the appropriate
-        factory function in the Collector interface.
-        @see Collector.
-    */
+    /**
+     * Create the metric reference the specified implementation.
+     * Normally this won't be called directly. Instead, call the appropriate
+     * factory function in the Collector interface.
+     * @see Collector.
+     */
     explicit Gauge(std::shared_ptr<GaugeImpl> impl) : impl_(std::move(impl))
     {
     }
 
-    /** Set the value on the gauge.
-        A Collector implementation should combine multiple calls to value
-        changes into a single change if the calls occur within a single
-        collection interval.
-    */
+    /**
+     * Set the value on the gauge.
+     * A Collector implementation should combine multiple calls to value
+     * changes into a single change if the calls occur within a single
+     * collection interval.
+     */
     /** @{ */
     void
     set(value_type value) const
@@ -62,7 +66,9 @@ public:
     }
     /** @} */
 
-    /** Adjust the value of the gauge. */
+    /**
+     * Adjust the value of the gauge.
+     */
     /** @{ */
     void
     increment(difference_type amount) const

include/xrpl/beast/insight/Group.h

@@ -7,13 +7,17 @@
 
 namespace beast::insight {
 
-/** A collector front-end that manages a group of metrics. */
+/**
+ * A collector front-end that manages a group of metrics.
+ */
 class Group : public Collector
 {
 public:
     using ptr = std::shared_ptr<Group>;
 
-    /** Returns the name of this group, for diagnostics. */
+    /**
+     * Returns the name of this group, for diagnostics.
+     */
     [[nodiscard]] virtual std::string const&
     name() const = 0;
 };

include/xrpl/beast/insight/Groups.h

@@ -8,13 +8,17 @@
 
 namespace beast::insight {
 
-/** A container for managing a set of metric groups. */
+/**
+ * A container for managing a set of metric groups.
+ */
 class Groups
 {
 public:
     virtual ~Groups() = 0;
 
-    /** Find or create a new collector with a given name. */
+    /**
+     * Find or create a new collector with a given name.
+     */
     /** @{ */
     virtual Group::ptr const&
     get(std::string const& name) = 0;
@@ -27,7 +31,9 @@ public:
     /** @} */
 };
 
-/** Create a group container that uses the specified collector. */
+/**
+ * Create a group container that uses the specified collector.
+ */
 std::unique_ptr<Groups>
 makeGroups(Collector::ptr const& collector);
 

include/xrpl/beast/insight/Hook.h

@@ -7,20 +7,24 @@
 
 namespace beast::insight {
 
-/** A reference to a handler for performing polled collection. */
+/**
+ * A reference to a handler for performing polled collection.
+ */
 class Hook final
 {
 public:
-    /** Create a null hook.
-        A null hook has no associated handler.
-    */
+    /**
+     * Create a null hook.
+     * A null hook has no associated handler.
+     */
     Hook() = default;
 
-    /** Create a hook referencing the specified implementation.
-        Normally this won't be called directly. Instead, call the appropriate
-        factory function in the Collector interface.
-        @see Collector.
-    */
+    /**
+     * Create a hook referencing the specified implementation.
+     * Normally this won't be called directly. Instead, call the appropriate
+     * factory function in the Collector interface.
+     * @see Collector.
+     */
     explicit Hook(std::shared_ptr<HookImpl> impl) : impl_(std::move(impl))
     {
     }

include/xrpl/beast/insight/Meter.h

@@ -7,33 +7,38 @@
 
 namespace beast::insight {
 
-/** A metric for measuring an integral value.
-
-    A meter may be thought of as an increment-only counter.
-
-    This is a lightweight reference wrapper which is cheap to copy and assign.
-    When the last reference goes away, the metric is no longer collected.
-*/
+/**
+ * A metric for measuring an integral value.
+ *
+ * A meter may be thought of as an increment-only counter.
+ *
+ * This is a lightweight reference wrapper which is cheap to copy and assign.
+ * When the last reference goes away, the metric is no longer collected.
+ */
 class Meter final
 {
 public:
     using value_type = MeterImpl::value_type;
 
-    /** Create a null metric.
-        A null metric reports no information.
-    */
+    /**
+     * Create a null metric.
+     * A null metric reports no information.
+     */
     Meter() = default;
 
-    /** Create the metric reference the specified implementation.
-        Normally this won't be called directly. Instead, call the appropriate
-        factory function in the Collector interface.
-        @see Collector.
-    */
+    /**
+     * Create the metric reference the specified implementation.
+     * Normally this won't be called directly. Instead, call the appropriate
+     * factory function in the Collector interface.
+     * @see Collector.
+     */
     explicit Meter(std::shared_ptr<MeterImpl> impl) : impl_(std::move(impl))
     {
     }
 
-    /** Increment the meter. */
+    /**
+     * Increment the meter.
+     */
     /** @{ */
     void
     increment(value_type amount) const

include/xrpl/beast/insight/NullCollector.h

@@ -6,7 +6,9 @@
 
 namespace beast::insight {
 
-/** A Collector which does not collect metrics. */
+/**
+ * A Collector which does not collect metrics.
+ */
 class NullCollector : public Collector
 {
 public:

include/xrpl/beast/insight/StatsDCollector.h

@@ -9,20 +9,22 @@
 
 namespace beast::insight {
 
-/** A Collector that reports metrics to a StatsD server.
-    Reference:
-        https://github.com/b/statsd_spec
-*/
+/**
+ * A Collector that reports metrics to a StatsD server.
+ * Reference:
+ *     https://github.com/b/statsd_spec
+ */
 class StatsDCollector : public Collector
 {
 public:
     explicit StatsDCollector() = default;
 
-    /** Create a StatsD collector.
-        @param address The IP address and port of the StatsD server.
-        @param prefix A string pre-pended before each metric name.
-        @param journal Destination for logging output.
-    */
+    /**
+     * Create a StatsD collector.
+     * @param address The IP address and port of the StatsD server.
+     * @param prefix A string pre-pended before each metric name.
+     * @param journal Destination for logging output.
+     */
     static std::shared_ptr<StatsDCollector>
     make(IP::Endpoint const& address, std::string const& prefix, Journal journal);
 };

include/xrpl/beast/net/IPAddress.h

@@ -19,42 +19,54 @@ namespace IP {
 
 using Address = boost::asio::ip::address;
 
-/** Returns the address represented as a string. */
+/**
+ * Returns the address represented as a string.
+ */
 inline std::string
 to_string(Address const& addr)
 {
     return addr.to_string();
 }
 
-/** Returns `true` if this is a loopback address. */
+/**
+ * Returns `true` if this is a loopback address.
+ */
 inline bool
 isLoopback(Address const& addr)
 {
     return addr.is_loopback();
 }
 
-/** Returns `true` if the address is unspecified. */
+/**
+ * Returns `true` if the address is unspecified.
+ */
 inline bool
 isUnspecified(Address const& addr)
 {
     return addr.is_unspecified();
 }
 
-/** Returns `true` if the address is a multicast address. */
+/**
+ * Returns `true` if the address is a multicast address.
+ */
 inline bool
 isMulticast(Address const& addr)
 {
     return addr.is_multicast();
 }
 
-/** Returns `true` if the address is a private unroutable address. */
+/**
+ * Returns `true` if the address is a private unroutable address.
+ */
 inline bool
 isPrivate(Address const& addr)
 {
     return (addr.is_v4()) ? isPrivate(addr.to_v4()) : isPrivate(addr.to_v6());
 }
 
-/** Returns `true` if the address is a public routable address. */
+/**
+ * Returns `true` if the address is a public routable address.
+ */
 inline bool
 isPublic(Address const& addr)
 {

include/xrpl/beast/net/IPAddressConversion.h

@@ -6,23 +6,29 @@
 
 namespace beast::IP {
 
-/** Convert to Endpoint.
-    The port is set to zero.
-*/
+/**
+ * Convert to Endpoint.
+ * The port is set to zero.
+ */
 Endpoint
 fromAsio(boost::asio::ip::address const& address);
 
-/** Convert to Endpoint. */
+/**
+ * Convert to Endpoint.
+ */
 Endpoint
 fromAsio(boost::asio::ip::tcp::endpoint const& endpoint);
 
-/** Convert to asio::ip::address.
-    The port is ignored.
-*/
+/**
+ * Convert to asio::ip::address.
+ * The port is ignored.
+ */
 boost::asio::ip::address
 toAsioAddress(Endpoint const& endpoint);
 
-/** Convert to asio::ip::tcp::endpoint. */
+/**
+ * Convert to asio::ip::tcp::endpoint.
+ */
 boost::asio::ip::tcp::endpoint
 toAsioEndpoint(Endpoint const& endpoint);
 

include/xrpl/beast/net/IPAddressV4.h

@@ -6,17 +6,22 @@ namespace beast::IP {
 
 using AddressV4 = boost::asio::ip::address_v4;
 
-/** Returns `true` if the address is a private unroutable address. */
+/**
+ * Returns `true` if the address is a private unroutable address.
+ */
 bool
 isPrivate(AddressV4 const& addr);
 
-/** Returns `true` if the address is a public routable address. */
+/**
+ * Returns `true` if the address is a public routable address.
+ */
 bool
 isPublic(AddressV4 const& addr);
 
-/** Returns the address class for the given address.
-    @note Class 'D' represents multicast addresses (224.*.*.*).
-*/
+/**
+ * Returns the address class for the given address.
+ * @note Class 'D' represents multicast addresses (224.*.*.*).
+ */
 char
 getClass(AddressV4 const& address);
 

include/xrpl/beast/net/IPAddressV6.h

@@ -6,11 +6,15 @@ namespace beast::IP {
 
 using AddressV6 = boost::asio::ip::address_v6;
 
-/** Returns `true` if the address is a private unroutable address. */
+/**
+ * Returns `true` if the address is a private unroutable address.
+ */
 bool
 isPrivate(AddressV6 const& addr);
 
-/** Returns `true` if the address is a public routable address. */
+/**
+ * Returns `true` if the address is a public routable address.
+ */
 bool
 isPublic(AddressV6 const& addr);
 

include/xrpl/beast/net/IPEndpoint.h

@@ -17,51 +17,68 @@ namespace beast::IP {
 
 using Port = std::uint16_t;
 
-/** A version-independent IP address and port combination. */
+/**
+ * A version-independent IP address and port combination.
+ */
 class Endpoint
 {
 public:
-    /** Create an unspecified endpoint. */
+    /**
+     * Create an unspecified endpoint.
+     */
     Endpoint();
 
-    /** Create an endpoint from the address and optional port. */
+    /**
+     * Create an endpoint from the address and optional port.
+     */
     explicit Endpoint(Address addr, Port port = 0);
 
-    /** Create an Endpoint from a string.
-        If the port is omitted, the endpoint will have a zero port.
-        @return An optional endpoint; will be `std::nullopt` on failure
-    */
+    /**
+     * Create an Endpoint from a string.
+     * If the port is omitted, the endpoint will have a zero port.
+     * @return An optional endpoint; will be `std::nullopt` on failure
+     */
     static std::optional<Endpoint>
     fromStringChecked(std::string const& s);
     static Endpoint
     fromString(std::string const& s);
 
-    /** Returns a string representing the endpoint. */
+    /**
+     * Returns a string representing the endpoint.
+     */
     [[nodiscard]] std::string
     toString() const;
 
-    /** Returns the port number on the endpoint. */
+    /**
+     * Returns the port number on the endpoint.
+     */
     [[nodiscard]] Port
     port() const
     {
         return port_;
     }
 
-    /** Returns a new Endpoint with a different port. */
+    /**
+     * Returns a new Endpoint with a different port.
+     */
     [[nodiscard]] Endpoint
     atPort(Port port) const
     {
         return Endpoint(addr_, port);
     }
 
-    /** Returns the address portion of this endpoint. */
+    /**
+     * Returns the address portion of this endpoint.
+     */
     [[nodiscard]] Address const&
     address() const
     {
         return addr_;
     }
 
-    /** Convenience accessors for the address part. */
+    /**
+     * Convenience accessors for the address part.
+     */
     /** @{ */
     [[nodiscard]] bool
     isV4() const
@@ -85,7 +102,9 @@ public:
     }
     /** @} */
 
-    /** Arithmetic comparison. */
+    /**
+     * Arithmetic comparison.
+     */
     /** @{ */
     friend bool
     operator==(Endpoint const& lhs, Endpoint const& rhs);
@@ -131,35 +150,45 @@ private:
 
 // Properties
 
-/** Returns `true` if the endpoint is a loopback address. */
+/**
+ * Returns `true` if the endpoint is a loopback address.
+ */
 inline bool
 isLoopback(Endpoint const& endpoint)
 {
     return isLoopback(endpoint.address());
 }
 
-/** Returns `true` if the endpoint is unspecified. */
+/**
+ * Returns `true` if the endpoint is unspecified.
+ */
 inline bool
 isUnspecified(Endpoint const& endpoint)
 {
     return isUnspecified(endpoint.address());
 }
 
-/** Returns `true` if the endpoint is a multicast address. */
+/**
+ * Returns `true` if the endpoint is a multicast address.
+ */
 inline bool
 isMulticast(Endpoint const& endpoint)
 {
     return isMulticast(endpoint.address());
 }
 
-/** Returns `true` if the endpoint is a private unroutable address. */
+/**
+ * Returns `true` if the endpoint is a private unroutable address.
+ */
 inline bool
 isPrivate(Endpoint const& endpoint)
 {
     return isPrivate(endpoint.address());
 }
 
-/** Returns `true` if the endpoint is a public routable address. */
+/**
+ * Returns `true` if the endpoint is a public routable address.
+ */
 inline bool
 isPublic(Endpoint const& endpoint)
 {
@@ -168,14 +197,18 @@ isPublic(Endpoint const& endpoint)
 
 //------------------------------------------------------------------------------
 
-/** Returns the endpoint represented as a string. */
+/**
+ * Returns the endpoint represented as a string.
+ */
 inline std::string
 to_string(Endpoint const& endpoint)
 {
     return endpoint.toString();
 }
 
-/** Output stream conversion. */
+/**
+ * Output stream conversion.
+ */
 template <typename OutputStream>
 OutputStream&
 operator<<(OutputStream& os, Endpoint const& endpoint)
@@ -184,7 +217,9 @@ operator<<(OutputStream& os, Endpoint const& endpoint)
     return os;
 }
 
-/** Input stream conversion. */
+/**
+ * Input stream conversion.
+ */
 std::istream&
 operator>>(std::istream& is, Endpoint& endpoint);
 
@@ -193,7 +228,9 @@ operator>>(std::istream& is, Endpoint& endpoint);
 //------------------------------------------------------------------------------
 
 namespace std {
-/** std::hash support. */
+/**
+ * std::hash support.
+ */
 template <>
 struct hash<::beast::IP::Endpoint>
 {
@@ -208,7 +245,9 @@ struct hash<::beast::IP::Endpoint>
 }  // namespace std
 
 namespace boost {
-/** boost::hash support. */
+/**
+ * boost::hash support.
+ */
 template <>
 struct hash<::beast::IP::Endpoint>
 {

include/xrpl/beast/rfc2616.h

@@ -30,17 +30,20 @@ struct CiEqualPred
     }
 };
 
-/** Returns `true` if `c` is linear white space.
-
-    This excludes the CRLF sequence allowed for line continuations.
-*/
+/**
+ * Returns `true` if `c` is linear white space.
+ *
+ * This excludes the CRLF sequence allowed for line continuations.
+ */
 inline bool
 isLws(char c)
 {
     return c == ' ' || c == '\t';
 }
 
-/** Returns `true` if `c` is any whitespace character. */
+/**
+ * Returns `true` if `c` is any whitespace character.
+ */
 inline bool
 isWhite(char c)
 {
@@ -87,14 +90,15 @@ trimRight(String const& s)
 
 }  // namespace detail
 
-/** Parse a character sequence of values separated by commas.
-    Double quotes and escape sequences will be converted.  Excess white
-    space, commas, double quotes, and empty elements are not copied.
-    Format:
-       #(token|quoted-string)
-    Reference:
-        http://www.w3.org/Protocols/rfc2616/rfc2616-sec2.html#sec2
-*/
+/**
+ * Parse a character sequence of values separated by commas.
+ * Double quotes and escape sequences will be converted.  Excess white
+ * space, commas, double quotes, and empty elements are not copied.
+ * Format:
+ *    #(token|quoted-string)
+ * Reference:
+ *     http://www.w3.org/Protocols/rfc2616/rfc2616-sec2.html#sec2
+ */
 template <
     class FwdIt,
     class Result = std::vector<std::basic_string<typename std::iterator_traits<FwdIt>::value_type>>,
@@ -189,14 +193,15 @@ splitCommas(boost::beast::string_view const& s)
 
 //------------------------------------------------------------------------------
 
-/** Iterates through a comma separated list.
-
-    Meets the requirements of ForwardIterator.
-
-    List defined in rfc2616 2.1.
-
-    @note Values returned may contain backslash escapes.
-*/
+/**
+ * Iterates through a comma separated list.
+ *
+ * Meets the requirements of ForwardIterator.
+ *
+ * List defined in rfc2616 2.1.
+ *
+ * @note Values returned may contain backslash escapes.
+ */
 class ListIterator
 {
     using iter_type = boost::string_ref::const_iterator;
@@ -323,17 +328,20 @@ ListIterator::increment()
         }
     }
 }
-/** Returns true if two strings are equal.
-
-    A case-insensitive comparison is used.
-*/
+/**
+ * Returns true if two strings are equal.
+ *
+ * A case-insensitive comparison is used.
+ */
 inline bool
 ciEqual(boost::string_ref s1, boost::string_ref s2)
 {
     return boost::range::equal(s1, s2, detail::CiEqualPred{});
 }
 
-/** Returns a range representing the list. */
+/**
+ * Returns a range representing the list.
+ */
 inline boost::iterator_range<ListIterator>
 makeList(boost::string_ref const& field)
 {
@@ -341,10 +349,11 @@ makeList(boost::string_ref const& field)
         ListIterator{field.begin(), field.end()}, ListIterator{field.end(), field.end()}};
 }
 
-/** Returns true if the specified token exists in the list.
-
-    A case-insensitive comparison is used.
-*/
+/**
+ * Returns true if the specified token exists in the list.
+ *
+ * A case-insensitive comparison is used.
+ */
 template <class = void>
 bool
 tokenInList(boost::string_ref const& value, boost::string_ref const& token)

include/xrpl/beast/test/yield_to.h

@@ -19,12 +19,13 @@
 
 namespace beast::test {
 
-/** Mix-in to support tests using asio coroutines.
-
-    Derive from this class and use yield_to to launch test
-    functions inside coroutines. This is handy for testing
-    asynchronous asio code.
-*/
+/**
+ * Mix-in to support tests using asio coroutines.
+ *
+ * Derive from this class and use yield_to to launch test
+ * functions inside coroutines. This is handy for testing
+ * asynchronous asio code.
+ */
 class EnableYieldTo
 {
 protected:
@@ -38,7 +39,9 @@ private:
     std::size_t running_ = 0;
 
 public:
-    /// The type of yield context passed to functions.
+    /**
+     * The type of yield context passed to functions.
+     */
     using yield_context = boost::asio::yield_context;
 
     explicit EnableYieldTo(std::size_t concurrency = 1) : work_(boost::asio::make_work_guard(ios_))
@@ -57,24 +60,27 @@ public:
             t.join();
     }
 
-    /// Return the `io_context` associated with the object
+    /**
+     * Return the `io_context` associated with the object
+     */
     boost::asio::io_context&
     getIoContext()
     {
         return ios_;
     }
 
-    /** Run one or more functions, each in a coroutine.
-
-        This call will block until all coroutines terminate.
-
-        Each functions should have this signature:
-        @code
-            void f(yield_context);
-        @endcode
-
-        @param fn... One or more functions to invoke.
-    */
+    /**
+     * Run one or more functions, each in a coroutine.
+     *
+     * This call will block until all coroutines terminate.
+     *
+     * Each functions should have this signature:
+     * @code
+     *     void f(yield_context);
+     * @endcode
+     *
+     * @param fn... One or more functions to invoke.
+     */
 #if BEAST_DOXYGEN
     template <class... FN>
     void

include/xrpl/beast/unit_test/amount.h

@@ -10,7 +10,9 @@
 
 namespace beast::unit_test {
 
-/** Utility for producing nicely composed output of amounts with units. */
+/**
+ * Utility for producing nicely composed output of amounts with units.
+ */
 class Amount
 {
 private:

include/xrpl/beast/unit_test/detail/const_container.h

@@ -6,10 +6,11 @@
 
 namespace beast::unit_test::detail {
 
-/** Adapter to constrain a container interface.
-    The interface allows for limited read only operations. Derived classes
-    provide additional behavior.
-*/
+/**
+ * Adapter to constrain a container interface.
+ * The interface allows for limited read only operations. Derived classes
+ * provide additional behavior.
+ */
 template <class Container>
 class ConstContainer
 {
@@ -38,21 +39,27 @@ public:
     using iterator = cont_type::const_iterator;
     using const_iterator = cont_type::const_iterator;
 
-    /** Returns `true` if the container is empty. */
+    /**
+     * Returns `true` if the container is empty.
+     */
     [[nodiscard]] bool
     empty() const
     {
         return cont_.empty();
     }
 
-    /** Returns the number of items in the container. */
+    /**
+     * Returns the number of items in the container.
+     */
     [[nodiscard]] size_type
     size() const
     {
         return cont_.size();
     }
 
-    /** Returns forward iterators for traversal. */
+    /**
+     * Returns forward iterators for traversal.
+     */
     /** @{ */
     [[nodiscard]] const_iterator
     begin() const

include/xrpl/beast/unit_test/global_suites.h

@@ -10,7 +10,9 @@ namespace beast::unit_test {
 
 namespace detail {
 
-/// Holds test suites registered during static initialization.
+/**
+ * Holds test suites registered during static initialization.
+ */
 inline SuiteList&
 globalSuites()
 {
@@ -34,7 +36,9 @@ struct InsertSuite
 
 }  // namespace detail
 
-/// Holds test suites registered during static initialization.
+/**
+ * Holds test suites registered during static initialization.
+ */
 inline SuiteList const&
 globalSuites()
 {

include/xrpl/beast/unit_test/match.h

@@ -121,42 +121,48 @@ Selector::operator()(SuiteInfo const& s)
 
 // Utility functions for producing predicates to select suites.
 
-/** Returns a predicate that implements a smart matching rule.
-    The predicate checks the suite, module, and library fields of the
-    SuiteInfo in that order. When it finds a match, it changes modes
-    depending on what was found:
-
-        If a suite is matched first, then only the suite is selected. The
-        suite may be marked manual.
-
-        If a module is matched first, then only suites from that module
-        and library not marked manual are selected from then on.
-
-        If a library is matched first, then only suites from that library
-        not marked manual are selected from then on.
-
-*/
+/**
+ * Returns a predicate that implements a smart matching rule.
+ * The predicate checks the suite, module, and library fields of the
+ * SuiteInfo in that order. When it finds a match, it changes modes
+ * depending on what was found:
+ *
+ *     If a suite is matched first, then only the suite is selected. The
+ *     suite may be marked manual.
+ *
+ *     If a module is matched first, then only suites from that module
+ *     and library not marked manual are selected from then on.
+ *
+ *     If a library is matched first, then only suites from that library
+ *     not marked manual are selected from then on.
+ */
 inline Selector
 matchAuto(std::string const& name)
 {
     return Selector(Selector::ModeT::Automatch, name);
 }
 
-/** Return a predicate that matches all suites not marked manual. */
+/**
+ * Return a predicate that matches all suites not marked manual.
+ */
 inline Selector
 matchAll()
 {
     return Selector(Selector::ModeT::All);
 }
 
-/** Returns a predicate that matches a specific suite. */
+/**
+ * Returns a predicate that matches a specific suite.
+ */
 inline Selector
 matchSuite(std::string const& name)
 {
     return Selector(Selector::ModeT::Suite, name);
 }
 
-/** Returns a predicate that matches all suites in a library. */
+/**
+ * Returns a predicate that matches all suites in a library.
+ */
 inline Selector
 matchLibrary(std::string const& name)
 {

include/xrpl/beast/unit_test/recorder.h

@@ -13,7 +13,9 @@
 
 namespace beast::unit_test {
 
-/** A test runner that stores the results. */
+/**
+ * A test runner that stores the results.
+ */
 class Recorder : public Runner
 {
 private:
@@ -24,7 +26,9 @@ private:
 public:
     Recorder() = default;
 
-    /** Returns a report with the results of all completed suites. */
+    /**
+     * Returns a report with the results of all completed suites.
+     */
     [[nodiscard]] Results const&
     report() const
     {

include/xrpl/beast/unit_test/reporter.h

@@ -25,9 +25,10 @@ namespace beast::unit_test {
 
 namespace detail {
 
-/** A simple test runner that writes everything to a stream in real time.
-    The totals are output when the object is destroyed.
-*/
+/**
+ * A simple test runner that writes everything to a stream in real time.
+ * The totals are output when the object is destroyed.
+ */
 template <class = void>
 class Reporter : public Runner
 {

include/xrpl/beast/unit_test/results.h

@@ -13,11 +13,15 @@
 
 namespace beast::unit_test {
 
-/** Holds a set of test condition outcomes in a testcase. */
+/**
+ * Holds a set of test condition outcomes in a testcase.
+ */
 class CaseResults
 {
 public:
-    /** Holds the result of evaluating one test condition. */
+    /**
+     * Holds the result of evaluating one test condition.
+     */
     struct Test
     {
         explicit Test(bool pass) : pass(pass)
@@ -41,28 +45,36 @@ private:
     public:
         TestsT() = default;
 
-        /** Returns the total number of test conditions. */
+        /**
+         * Returns the total number of test conditions.
+         */
         [[nodiscard]] std::size_t
         total() const
         {
             return cont().size();
         }
 
-        /** Returns the number of failed test conditions. */
+        /**
+         * Returns the number of failed test conditions.
+         */
         [[nodiscard]] std::size_t
         failed() const
         {
             return failed_;
         }
 
-        /** Register a successful test condition. */
+        /**
+         * Register a successful test condition.
+         */
         void
         pass()
         {
             cont().emplace_back(true);
         }
 
-        /** Register a failed test condition. */
+        /**
+         * Register a failed test condition.
+         */
         void
         fail(std::string const& reason = "")
         {
@@ -74,7 +86,9 @@ private:
     class LogT : public detail::ConstContainer<std::vector<std::string>>
     {
     public:
-        /** Insert a string into the log. */
+        /**
+         * Insert a string into the log.
+         */
         void
         insert(std::string const& s)
         {
@@ -89,23 +103,31 @@ public:
     {
     }
 
-    /** Returns the name of this testcase. */
+    /**
+     * Returns the name of this testcase.
+     */
     [[nodiscard]] std::string const&
     name() const
     {
         return name_;
     }
 
-    /** Memberspace for a container of test condition outcomes. */
+    /**
+     * Memberspace for a container of test condition outcomes.
+     */
     TestsT tests;
 
-    /** Memberspace for a container of testcase log messages. */
+    /**
+     * Memberspace for a container of testcase log messages.
+     */
     LogT log;
 };
 
 //--------------------------------------------------------------------------
 
-/** Holds the set of testcase results in a suite. */
+/**
+ * Holds the set of testcase results in a suite.
+ */
 class SuiteResults : public detail::ConstContainer<std::vector<CaseResults>>
 {
 private:
@@ -118,28 +140,36 @@ public:
     {
     }
 
-    /** Returns the name of this suite. */
+    /**
+     * Returns the name of this suite.
+     */
     [[nodiscard]] std::string const&
     name() const
     {
         return name_;
     }
 
-    /** Returns the total number of test conditions. */
+    /**
+     * Returns the total number of test conditions.
+     */
     [[nodiscard]] std::size_t
     total() const
     {
         return total_;
     }
 
-    /** Returns the number of failures. */
+    /**
+     * Returns the number of failures.
+     */
     [[nodiscard]] std::size_t
     failed() const
     {
         return failed_;
     }
 
-    /** Insert a set of testcase results. */
+    /**
+     * Insert a set of testcase results.
+     */
     /** @{ */
     void
     insert(CaseResults&& r)
@@ -162,7 +192,9 @@ public:
 //------------------------------------------------------------------------------
 
 // VFALCO TODO Make this a template class using scoped allocators
-/** Holds the results of running a set of testsuites. */
+/**
+ * Holds the results of running a set of testsuites.
+ */
 class Results : public detail::ConstContainer<std::vector<SuiteResults>>
 {
 private:
@@ -173,28 +205,36 @@ private:
 public:
     Results() = default;
 
-    /** Returns the total number of test cases. */
+    /**
+     * Returns the total number of test cases.
+     */
     [[nodiscard]] std::size_t
     cases() const
     {
         return cases_;
     }
 
-    /** Returns the total number of test conditions. */
+    /**
+     * Returns the total number of test conditions.
+     */
     [[nodiscard]] std::size_t
     total() const
     {
         return total_;
     }
 
-    /** Returns the number of failures. */
+    /**
+     * Returns the number of failures.
+     */
     [[nodiscard]] std::size_t
     failed() const
     {
         return failed_;
     }
 
-    /** Insert a set of suite results. */
+    /**
+     * Insert a set of suite results.
+     */
     /** @{ */
     void
     insert(SuiteResults&& r)

include/xrpl/beast/unit_test/runner.h

@@ -13,11 +13,12 @@
 
 namespace beast::unit_test {
 
-/** Unit test runner interface.
-
-    Derived classes can customize the reporting behavior. This interface is
-    injected into the unit_test class to receive the results of the tests.
-*/
+/**
+ * Unit test runner interface.
+ *
+ * Derived classes can customize the reporting behavior. This interface is
+ * injected into the unit_test class to receive the results of the tests.
+ */
 class Runner
 {
     std::string arg_;
@@ -33,110 +34,132 @@ public:
     Runner&
     operator=(Runner const&) = delete;
 
-    /** Set the argument string.
-
-        The argument string is available to suites and
-        allows for customization of the test. Each suite
-        defines its own syntax for the argument string.
-        The same argument is passed to all suites.
-    */
+    /**
+     * Set the argument string.
+     *
+     * The argument string is available to suites and
+     * allows for customization of the test. Each suite
+     * defines its own syntax for the argument string.
+     * The same argument is passed to all suites.
+     */
     void
     arg(std::string const& s)
     {
         arg_ = s;
     }
 
-    /** Returns the argument string. */
+    /**
+     * Returns the argument string.
+     */
     [[nodiscard]] std::string const&
     arg() const
     {
         return arg_;
     }
 
-    /** Run the specified suite.
-        @return `true` if any conditions failed.
-    */
+    /**
+     * Run the specified suite.
+     * @return `true` if any conditions failed.
+     */
     template <class = void>
     bool
     run(SuiteInfo const& s);
 
-    /** Run a sequence of suites.
-        The expression
-            `FwdIter::value_type`
-        must be convertible to `SuiteInfo`.
-        @return `true` if any conditions failed.
-    */
+    /**
+     * Run a sequence of suites.
+     * The expression
+     *     `FwdIter::value_type`
+     * must be convertible to `SuiteInfo`.
+     * @return `true` if any conditions failed.
+     */
     template <class FwdIter>
     bool
     run(FwdIter first, FwdIter last);
 
-    /** Conditionally run a sequence of suites.
-        pred will be called as:
-        @code
-            bool pred(SuiteInfo const&);
-        @endcode
-        @return `true` if any conditions failed.
-    */
+    /**
+     * Conditionally run a sequence of suites.
+     * pred will be called as:
+     * @code
+     *     bool pred(SuiteInfo const&);
+     * @endcode
+     * @return `true` if any conditions failed.
+     */
     template <class FwdIter, class Pred>
     bool
     runIf(FwdIter first, FwdIter last, Pred pred = Pred{});
 
-    /** Run all suites in a container.
-        @return `true` if any conditions failed.
-    */
+    /**
+     * Run all suites in a container.
+     * @return `true` if any conditions failed.
+     */
     template <class SequenceContainer>
     bool
     runEach(SequenceContainer const& c);
 
-    /** Conditionally run suites in a container.
-        pred will be called as:
-        @code
-            bool pred(SuiteInfo const&);
-        @endcode
-        @return `true` if any conditions failed.
-    */
+    /**
+     * Conditionally run suites in a container.
+     * pred will be called as:
+     * @code
+     *     bool pred(SuiteInfo const&);
+     * @endcode
+     * @return `true` if any conditions failed.
+     */
     template <class SequenceContainer, class Pred>
     bool
     runEachIf(SequenceContainer const& c, Pred pred = Pred{});
 
 protected:
-    /// Called when a new suite starts.
+    /**
+     * Called when a new suite starts.
+     */
     virtual void
     onSuiteBegin(SuiteInfo const&)
     {
     }
 
-    /// Called when a suite ends.
+    /**
+     * Called when a suite ends.
+     */
     virtual void
     onSuiteEnd()
     {
     }
 
-    /// Called when a new case starts.
+    /**
+     * Called when a new case starts.
+     */
     virtual void
     onCaseBegin(std::string const&)
     {
     }
 
-    /// Called when a new case ends.
+    /**
+     * Called when a new case ends.
+     */
     virtual void
     onCaseEnd()
     {
     }
 
-    /// Called for each passing condition.
+    /**
+     * Called for each passing condition.
+     */
     virtual void
     onPass()
     {
     }
 
-    /// Called for each failing condition.
+    /**
+     * Called for each failing condition.
+     */
     virtual void
     onFail(std::string const&)
     {
     }
 
-    /// Called when a test logs output.
+    /**
+     * Called when a test logs output.
+     */
     virtual void
     onLog(std::string const&)
     {

include/xrpl/beast/unit_test/suite.h

@@ -41,13 +41,14 @@ class Thread;
 
 enum class AbortT { NoAbortOnFail, AbortOnFail };
 
-/** A testsuite class.
-
-    Derived classes execute a series of testcases, where each testcase is
-    a series of pass/fail tests. To provide a unit test using this class,
-    derive from it and use the BEAST_DEFINE_UNIT_TEST macro in a
-    translation unit.
-*/
+/**
+ * A testsuite class.
+ *
+ * Derived classes execute a series of testcases, where each testcase is
+ * a series of pass/fail tests. To provide a unit test using this class,
+ * derive from it and use the BEAST_DEFINE_UNIT_TEST macro in a
+ * translation unit.
+ */
 class Suite
 {
 private:
@@ -118,16 +119,17 @@ private:
         {
         }
 
-        /** Open a new testcase.
-
-            A testcase is a series of evaluated test conditions. A test
-            suite may have multiple test cases. A test is associated with
-            the last opened testcase. When the test first runs, a default
-            unnamed case is opened. Tests with only one case may omit the
-            call to testcase.
-
-            @param abort Determines if suite continues running after a failure.
-        */
+        /**
+         * Open a new testcase.
+         *
+         * A testcase is a series of evaluated test conditions. A test
+         * suite may have multiple test cases. A test is associated with
+         * the last opened testcase. When the test first runs, a default
+         * unnamed case is opened. Tests with only one case may omit the
+         * call to testcase.
+         *
+         * @param abort Determines if suite continues running after a failure.
+         */
         void
         operator()(std::string const& name, AbortT abort = AbortT::NoAbortOnFail);
 
@@ -140,19 +142,23 @@ private:
     };
 
 public:
-    /** Logging output stream.
-
-        Text sent to the log output stream will be forwarded to
-        the output stream associated with the runner.
-    */
+    /**
+     * Logging output stream.
+     *
+     * Text sent to the log output stream will be forwarded to
+     * the output stream associated with the runner.
+     */
     LogOs<char> log;
 
-    /** Memberspace for declaring test cases. */
+    /**
+     * Memberspace for declaring test cases.
+     */
     TestcaseT testcase;
 
-    /** Returns the "current" running suite.
-        If no suite is running, nullptr is returned.
-    */
+    /**
+     * Returns the "current" running suite.
+     * If no suite is running, nullptr is returned.
+     */
     static Suite*
     thisSuite()
     {
@@ -168,30 +174,34 @@ public:
     Suite&
     operator=(Suite const&) = delete;
 
-    /** Invokes the test using the specified runner.
-
-        Data members are set up here instead of the constructor as a
-        convenience to writing the derived class to avoid repetition of
-        forwarded constructor arguments to the base.
-        Normally this is called by the framework for you.
-    */
+    /**
+     * Invokes the test using the specified runner.
+     *
+     * Data members are set up here instead of the constructor as a
+     * convenience to writing the derived class to avoid repetition of
+     * forwarded constructor arguments to the base.
+     * Normally this is called by the framework for you.
+     */
     template <class = void>
     void
     operator()(Runner& r);
 
-    /** Record a successful test condition. */
+    /**
+     * Record a successful test condition.
+     */
     template <class = void>
     void
     pass();
 
-    /** Record a failure.
-
-        @param reason Optional text added to the output on a failure.
-
-        @param file The source code file where the test failed.
-
-        @param line The source code line number where the test failed.
-    */
+    /**
+     * Record a failure.
+     *
+     * @param reason Optional text added to the output on a failure.
+     *
+     * @param file The source code file where the test failed.
+     *
+     * @param line The source code line number where the test failed.
+     */
     /** @{ */
     template <class String>
     void
@@ -202,23 +212,24 @@ public:
     fail(std::string const& reason = "");
     /** @} */
 
-    /** Evaluate a test condition.
-
-        This function provides improved logging by incorporating the
-        file name and line number into the reported output on failure,
-        as well as additional text specified by the caller.
-
-        @param shouldBeTrue The condition to test. The condition
-        is evaluated in a boolean context.
-
-        @param reason Optional added text to output on a failure.
-
-        @param file The source code file where the test failed.
-
-        @param line The source code line number where the test failed.
-
-        @return `true` if the test condition indicates success.
-    */
+    /**
+     * Evaluate a test condition.
+     *
+     * This function provides improved logging by incorporating the
+     * file name and line number into the reported output on failure,
+     * as well as additional text specified by the caller.
+     *
+     * @param shouldBeTrue The condition to test. The condition
+     * is evaluated in a boolean context.
+     *
+     * @param reason Optional added text to output on a failure.
+     *
+     * @param file The source code file where the test failed.
+     *
+     * @param line The source code line number where the test failed.
+     *
+     * @return `true` if the test condition indicates success.
+     */
     /** @{ */
     template <class Condition>
     bool
@@ -275,15 +286,19 @@ public:
         return unexcept(f, "");
     }
 
-    /** Return the argument associated with the runner. */
+    /**
+     * Return the argument associated with the runner.
+     */
     std::string const&
     arg() const
     {
         return runner_->arg();
     }
 
-    // DEPRECATED
-    // @return `true` if the test condition indicates success(a false value)
+    /**
+     * DEPRECATED
+     * @return `true` if the test condition indicates success(a false value)
+     */
     template <class Condition, class String>
     bool
     unexpected(Condition shouldBeFalse, String const& reason);
@@ -305,7 +320,9 @@ private:
         return &kPTs;
     }
 
-    /** Runs the suite. */
+    /**
+     * Runs the suite.
+     */
     virtual void
     run() = 0;
 
@@ -558,18 +575,20 @@ Suite::run(Runner& r)
 }
 
 #ifndef BEAST_EXPECT
-/** Check a precondition.
-
-    If the condition is false, the file and line number are reported.
-*/
+/**
+ * Check a precondition.
+ *
+ * If the condition is false, the file and line number are reported.
+ */
 #define BEAST_EXPECT(cond) expect(cond, __FILE__, __LINE__)
 #endif
 
 #ifndef BEAST_EXPECTS
-/** Check a precondition.
-
-    If the condition is false, the file and line number are reported.
-*/
+/**
+ * Check a precondition.
+ *
+ * If the condition is false, the file and line number are reported.
+ */
 #define BEAST_EXPECTS(cond, reason) \
     ((cond) ? (pass(), true) : (fail((reason), __FILE__, __LINE__), false))
 #endif
@@ -593,41 +612,43 @@ Suite::run(Runner& r)
 //
 #ifndef BEAST_DEFINE_TESTSUITE
 
-/** Enables insertion of test suites into the global container.
-    The default is to insert all test suite definitions into the global
-    container. If BEAST_DEFINE_TESTSUITE is user defined, this macro
-    has no effect.
-*/
+/**
+ * Enables insertion of test suites into the global container.
+ * The default is to insert all test suite definitions into the global
+ * container. If BEAST_DEFINE_TESTSUITE is user defined, this macro
+ * has no effect.
+ */
 #ifndef BEAST_NO_UNIT_TEST_INLINE
 #define BEAST_NO_UNIT_TEST_INLINE 0
 #endif
 
-/** Define a unit test suite.
-
-    Class     The type representing the class being tested.
-    Module    Identifies the module.
-    Library   Identifies the library.
-
-    The declaration for the class implementing the test should be the same
-    as Class ## _test. For example, if Class is aged_ordered_container, the
-    test class must be declared as:
-
-    @code
-
-    struct aged_ordered_container_test : beast::unit_test::suite
-    {
-        //...
-    };
-
-    @endcode
-
-    The macro invocation must appear in the same namespace as the test class.
-
-    Unit test priorities were introduced so parallel unit_test::suites would
-    execute faster. Suites with longer running times have higher priorities
-    than unit tests with shorter running times.  Suites with no priorities
-    are assumed to run most quickly, so they run last.
-*/
+/**
+ * Define a unit test suite.
+ *
+ * Class     The type representing the class being tested.
+ * Module    Identifies the module.
+ * Library   Identifies the library.
+ *
+ * The declaration for the class implementing the test should be the same
+ * as Class ## _test. For example, if Class is aged_ordered_container, the
+ * test class must be declared as:
+ *
+ * @code
+ *
+ * struct aged_ordered_container_test : beast::unit_test::suite
+ * {
+ *     //...
+ * };
+ *
+ * @endcode
+ *
+ * The macro invocation must appear in the same namespace as the test class.
+ *
+ * Unit test priorities were introduced so parallel unit_test::suites would
+ * execute faster. Suites with longer running times have higher priorities
+ * than unit tests with shorter running times.  Suites with no priorities
+ * are assumed to run most quickly, so they run last.
+ */
 
 #if BEAST_NO_UNIT_TEST_INLINE
 #define BEAST_DEFINE_TESTSUITE(Class, Module, Library)

include/xrpl/beast/unit_test/suite_info.h

@@ -13,7 +13,9 @@ namespace beast::unit_test {
 
 class Runner;
 
-/** Associates a unit test type with metadata. */
+/**
+ * Associates a unit test type with metadata.
+ */
 class SuiteInfo
 {
     using run_type = std::function<void(Runner&)>;
@@ -60,21 +62,27 @@ public:
         return library_;
     }
 
-    /// Returns `true` if this suite only runs manually.
+    /**
+     * Returns `true` if this suite only runs manually.
+     */
     [[nodiscard]] bool
     manual() const
     {
         return manual_;
     }
 
-    /// Return the canonical suite name as a string.
+    /**
+     * Return the canonical suite name as a string.
+     */
     [[nodiscard]] std::string
     fullName() const
     {
         return library_ + "." + module_ + "." + name_;
     }
 
-    /// Run a new instance of the associated test suite.
+    /**
+     * Run a new instance of the associated test suite.
+     */
     void
     run(Runner& r) const
     {
@@ -93,7 +101,9 @@ public:
 
 //------------------------------------------------------------------------------
 
-/// Convenience for producing SuiteInfo for a given test type.
+/**
+ * Convenience for producing SuiteInfo for a given test type.
+ */
 template <class Suite>
 SuiteInfo
 makeSuiteInfo(std::string name, std::string module, std::string library, bool manual, int priority)

include/xrpl/beast/unit_test/suite_list.h

@@ -16,7 +16,9 @@
 
 namespace beast::unit_test {
 
-/// A container of test suites.
+/**
+ * A container of test suites.
+ */
 class SuiteList : public detail::ConstContainer<std::set<SuiteInfo>>
 {
 private:
@@ -26,10 +28,11 @@ private:
 #endif
 
 public:
-    /** Insert a suite into the set.
-
-        The suite must not already exist.
-    */
+    /**
+     * Insert a suite into the set.
+     *
+     * The suite must not already exist.
+     */
     template <class Suite>
     void
     insert(char const* name, char const* module, char const* library, bool manual, int priority);

include/xrpl/beast/unit_test/thread.h

@@ -14,7 +14,9 @@
 
 namespace beast::unit_test {
 
-/** Replacement for std::thread that handles exceptions in unit tests. */
+/**
+ * Replacement for std::thread that handles exceptions in unit tests.
+ */
 class Thread
 {
 private:

include/xrpl/beast/utility/Journal.h

@@ -10,7 +10,9 @@
 
 namespace beast {
 
-/** Severity level / threshold of a Journal message. */
+/**
+ * Severity level / threshold of a Journal message.
+ */
 enum class Severity : std::uint8_t {
     All = 0,
 
@@ -25,18 +27,19 @@ enum class Severity : std::uint8_t {
     None = Disabled
 };
 
-/** A generic endpoint for log messages.
-
-    The Journal has a few simple goals:
-
-     * To be light-weight and copied by value.
-     * To allow logging statements to be left in source code.
-     * The logging is controlled at run-time based on a logging threshold.
-
-    It is advisable to check Journal::active(level) prior to formatting log
-    text.  Doing so sidesteps expensive text formatting when the results
-    will not be sent to the log.
-*/
+/**
+ * A generic endpoint for log messages.
+ *
+ * The Journal has a few simple goals:
+ *
+ *  * To be light-weight and copied by value.
+ *  * To allow logging statements to be left in source code.
+ *  * The logging is controlled at run-time based on a logging threshold.
+ *
+ * It is advisable to check Journal::active(level) prior to formatting log
+ * text.  Doing so sidesteps expensive text formatting when the results
+ * will not be sent to the log.
+ */
 class Journal
 {
 public:
@@ -49,7 +52,9 @@ private:
 public:
     //--------------------------------------------------------------------------
 
-    /** Abstraction for the underlying message destination. */
+    /**
+     * Abstraction for the underlying message destination.
+     */
     class Sink
     {
     protected:
@@ -63,36 +68,47 @@ public:
         Sink&
         operator=(Sink const& lhs) = delete;
 
-        /** Returns `true` if text at the passed severity produces output. */
+        /**
+         * Returns `true` if text at the passed severity produces output.
+         */
         [[nodiscard]] virtual bool
         active(Severity level) const;
 
-        /** Returns `true` if a message is also written to the Output Window
-         * (MSVC). */
+        /**
+         * Returns `true` if a message is also written to the Output Window
+         * (MSVC).
+         */
         [[nodiscard]] virtual bool
         console() const;
 
-        /** Set whether messages are also written to the Output Window (MSVC).
+        /**
+         * Set whether messages are also written to the Output Window (MSVC).
          */
         virtual void
         console(bool output);
 
-        /** Returns the minimum severity level this sink will report. */
+        /**
+         * Returns the minimum severity level this sink will report.
+         */
         [[nodiscard]] virtual Severity
         threshold() const;
 
-        /** Set the minimum severity this sink will report. */
+        /**
+         * Set the minimum severity this sink will report.
+         */
         virtual void
         threshold(Severity thresh);
 
-        /** Write text to the sink at the specified severity.
-            A conforming implementation will not write the text if the passed
-            level is below the current threshold().
-        */
+        /**
+         * Write text to the sink at the specified severity.
+         * A conforming implementation will not write the text if the passed
+         * level is below the current threshold().
+         */
         virtual void
         write(Severity level, std::string const& text) = 0;
 
-        /** Bypass filter and write text to the sink at the specified severity.
+        /**
+         * Bypass filter and write text to the sink at the specified severity.
          * Always write the message, but maintain the same formatting as if
          * it passed through a level filter.
          *
@@ -116,7 +132,9 @@ public:
     static_assert(std::is_nothrow_destructible_v<Sink>);
 #endif
 
-    /** Returns a Sink which does nothing. */
+    /**
+     * Returns a Sink which does nothing.
+     */
     static Sink&
     getNullSink();
 
@@ -174,26 +192,33 @@ public:
 
     //--------------------------------------------------------------------------
 public:
-    /** Provide a light-weight way to check active() before string formatting */
+    /**
+     * Provide a light-weight way to check active() before string formatting
+     */
     class Stream
     {
     public:
-        /** Create a stream which produces no output. */
+        /**
+         * Create a stream which produces no output.
+         */
         explicit Stream() : sink_(getNullSink()), level_(Severity::Disabled)
         {
         }
 
-        /** Create a stream that writes at the given level.
-
-            Constructor is inlined so checking active() very inexpensive.
-        */
+        /**
+         * Create a stream that writes at the given level.
+         *
+         * Constructor is inlined so checking active() very inexpensive.
+         */
         Stream(Sink& sink, Severity level) : sink_(sink), level_(level)
         {
             XRPL_ASSERT(
                 level_ < Severity::Disabled, "beast::Journal::Stream::Stream : maximum level");
         }
 
-        /** Construct or copy another Stream. */
+        /**
+         * Construct or copy another Stream.
+         */
         Stream(Stream const& other) : Stream(other.sink_, other.level_)
         {
         }
@@ -201,21 +226,27 @@ public:
         Stream&
         operator=(Stream const& other) = delete;
 
-        /** Returns the Sink that this Stream writes to. */
+        /**
+         * Returns the Sink that this Stream writes to.
+         */
         [[nodiscard]] Sink&
         sink() const
         {
             return sink_;
         }
 
-        /** Returns the Severity level of messages this Stream reports. */
+        /**
+         * Returns the Severity level of messages this Stream reports.
+         */
         [[nodiscard]] Severity
         level() const
         {
             return level_;
         }
 
-        /** Returns `true` if sink logs anything at this stream's level. */
+        /**
+         * Returns `true` if sink logs anything at this stream's level.
+         */
         /** @{ */
         [[nodiscard]] bool
         active() const
@@ -230,7 +261,9 @@ public:
         }
         /** @} */
 
-        /** Output stream support. */
+        /**
+         * Output stream support.
+         */
         /** @{ */
         ScopedStream
         operator<<(std::ostream& manip(std::ostream&)) const;
@@ -256,39 +289,50 @@ public:
 
     //--------------------------------------------------------------------------
 
-    /** Journal has no default constructor. */
+    /**
+     * Journal has no default constructor.
+     */
     Journal() = delete;
 
-    /** Create a journal that writes to the specified sink. */
+    /**
+     * Create a journal that writes to the specified sink.
+     */
     explicit Journal(Sink& sink) : sink_(&sink)
     {
     }
 
-    /** Returns the Sink associated with this Journal. */
+    /**
+     * Returns the Sink associated with this Journal.
+     */
     [[nodiscard]] Sink&
     sink() const
     {
         return *sink_;
     }
 
-    /** Returns a stream for this sink, with the specified severity level. */
+    /**
+     * Returns a stream for this sink, with the specified severity level.
+     */
     [[nodiscard]] Stream
     stream(Severity level) const
     {
         return Stream(*sink_, level);
     }
 
-    /** Returns `true` if any message would be logged at this severity level.
-        For a message to be logged, the severity must be at or above the
-        sink's severity threshold.
-    */
+    /**
+     * Returns `true` if any message would be logged at this severity level.
+     * For a message to be logged, the severity must be at or above the
+     * sink's severity threshold.
+     */
     [[nodiscard]] bool
     active(Severity level) const
     {
         return sink_->active(level);
     }
 
-    /** Severity stream access functions. */
+    /**
+     * Severity stream access functions.
+     */
     /** @{ */
     [[nodiscard]] Stream
     trace() const

include/xrpl/beast/utility/PropertyStream.h

@@ -12,7 +12,9 @@ namespace beast {
 
 //------------------------------------------------------------------------------
 
-/** Abstract stream with RAII containers that produce a property tree. */
+/**
+ * Abstract stream with RAII containers that produce a property tree.
+ */
 class PropertyStream
 {
 public:
@@ -306,7 +308,9 @@ public:
 //
 //------------------------------------------------------------------------------
 
-/** Subclasses can be called to write to a stream and have children. */
+/**
+ * Subclasses can be called to write to a stream and have children.
+ */
 class PropertyStream::Source
 {
 private:
@@ -324,17 +328,22 @@ public:
     Source&
     operator=(Source const&) = delete;
 
-    /** Returns the name of this source. */
+    /**
+     * Returns the name of this source.
+     */
     [[nodiscard]] std::string const&
     name() const;
 
-    /** Add a child source. */
+    /**
+     * Add a child source.
+     */
     void
     add(Source& source);
 
-    /** Add a child source by pointer.
-        The source pointer is returned so it can be used in ctor-initializers.
-    */
+    /**
+     * Add a child source by pointer.
+     * The source pointer is returned so it can be used in ctor-initializers.
+     */
     template <class Derived>
     Derived*
     add(Derived* child)
@@ -343,45 +352,55 @@ public:
         return child;
     }
 
-    /** Remove a child source from this Source. */
+    /**
+     * Remove a child source from this Source.
+     */
     void
     remove(Source& child);
 
-    /** Remove all child sources from this Source. */
+    /**
+     * Remove all child sources from this Source.
+     */
     void
     removeAll();
 
-    /** Write only this Source to the stream. */
+    /**
+     * Write only this Source to the stream.
+     */
     void
     writeOne(PropertyStream& stream);
 
-    /** write this source and all its children recursively to the stream. */
+    /**
+     * write this source and all its children recursively to the stream.
+     */
     void
     write(PropertyStream& stream);
 
-    /** Parse the path and write the corresponding Source and optional children.
-        If the source is found, it is written. If the wildcard character '*'
-        exists as the last character in the path, then all the children are
-        written recursively.
-    */
+    /**
+     * Parse the path and write the corresponding Source and optional children.
+     * If the source is found, it is written. If the wildcard character '*'
+     * exists as the last character in the path, then all the children are
+     * written recursively.
+     */
     void
     write(PropertyStream& stream, std::string const& path);
 
-    /** Parse the dot-delimited Source path and return the result.
-        The first value will be a pointer to the Source object corresponding
-        to the given path. If no Source object exists, then the first value
-        will be nullptr and the second value will be undefined.
-        The second value is a boolean indicating whether or not the path string
-        specifies the wildcard character '*' as the last character.
-
-        print statement examples
-        "parent.child" prints child and all of its children
-        "parent.child." start at the parent and print down to child
-        "parent.grandchild" prints nothing- grandchild not direct descendent
-        "parent.grandchild." starts at the parent and prints down to grandchild
-        "parent.grandchild.*" starts at parent, print through grandchild
-       children
-    */
+    /**
+     * Parse the dot-delimited Source path and return the result.
+     *  The first value will be a pointer to the Source object corresponding
+     *  to the given path. If no Source object exists, then the first value
+     *  will be nullptr and the second value will be undefined.
+     *  The second value is a boolean indicating whether or not the path string
+     *  specifies the wildcard character '*' as the last character.
+     *
+     *  print statement examples
+     *  "parent.child" prints child and all of its children
+     *  "parent.child." start at the parent and print down to child
+     *  "parent.grandchild" prints nothing- grandchild not direct descendent
+     *  "parent.grandchild." starts at the parent and prints down to grandchild
+     *  "parent.grandchild.*" starts at parent, print through grandchild
+     * children
+     */
     std::pair<Source*, bool>
     find(std::string path);
 
@@ -401,9 +420,10 @@ public:
 
     //--------------------------------------------------------------------------
 
-    /** Subclass override.
-        The default version does nothing.
-    */
+    /**
+     * Subclass override.
+     * The default version does nothing.
+     */
     virtual void
     onWrite(Map&);
 };

include/xrpl/beast/utility/WrappedSink.h

@@ -7,7 +7,9 @@
 
 namespace beast {
 
-/** Wraps a Journal::Sink to prefix its output with a string. */
+/**
+ * Wraps a Journal::Sink to prefix its output with a string.
+ */
 
 // A WrappedSink both is a Sink and has a Sink:
 //   o It inherits from Sink so it has the correct interface.

include/xrpl/beast/utility/Zero.h

@@ -4,22 +4,23 @@
 
 namespace beast {
 
-/** Zero allows classes to offer efficient comparisons to zero.
-
-    Zero is a struct to allow classes to efficiently compare with zero without
-    requiring an rvalue construction.
-
-    It's often the case that we have classes which combine a number and a unit.
-    In such cases, comparisons like t > 0 or t != 0 make sense, but comparisons
-    like t > 1 or t != 1 do not.
-
-    The class Zero allows such comparisons to be easily made.
-
-    The comparing class T either needs to have a method called signum() which
-    returns a positive number, 0, or a negative; or there needs to be a signum
-    function which resolves in the namespace which takes an instance of T and
-    returns a positive, zero or negative number.
-*/
+/**
+ * Zero allows classes to offer efficient comparisons to zero.
+ *
+ * Zero is a struct to allow classes to efficiently compare with zero without
+ * requiring an rvalue construction.
+ *
+ * It's often the case that we have classes which combine a number and a unit.
+ * In such cases, comparisons like t > 0 or t != 0 make sense, but comparisons
+ * like t > 1 or t != 1 do not.
+ *
+ * The class Zero allows such comparisons to be easily made.
+ *
+ * The comparing class T either needs to have a method called signum() which
+ * returns a positive number, 0, or a negative; or there needs to be a signum
+ * function which resolves in the namespace which takes an instance of T and
+ * returns a positive, zero or negative number.
+ */
 
 struct Zero
 {
@@ -28,7 +29,9 @@ struct Zero
 
 inline constexpr Zero kZero{};
 
-/** Default implementation of signum calls the method on the class. */
+/**
+ * Default implementation of signum calls the method on the class.
+ */
 template <typename T>
 auto
 signum(T const& t)

include/xrpl/beast/utility/maybe_const.h

@@ -4,7 +4,9 @@
 
 namespace beast {
 
-/** Makes T const or non const depending on a bool. */
+/**
+ * Makes T const or non const depending on a bool.
+ */
 template <bool IsConst, class T>
 struct MaybeConst
 {
@@ -13,7 +15,9 @@ struct MaybeConst
         conditional_t<IsConst, typename std::remove_const<T>::type const, std::remove_const_t<T>>;
 };
 
-/** Alias for omitting `typename`. */
+/**
+ * Alias for omitting `typename`.
+ */
 template <bool IsConst, class T>
 using maybe_const_t = MaybeConst<IsConst, T>::type;
 

include/xrpl/beast/utility/temp_dir.h

@@ -6,11 +6,12 @@
 
 namespace beast {
 
-/** RAII temporary directory.
-
-    The directory and all its contents are deleted when
-    the instance of `temp_dir` is destroyed.
-*/
+/**
+ * RAII temporary directory.
+ *
+ * The directory and all its contents are deleted when
+ * the instance of `temp_dir` is destroyed.
+ */
 class TempDir
 {
     boost::filesystem::path path_;
@@ -22,7 +23,9 @@ public:
     operator=(TempDir const&) = delete;
 #endif
 
-    /// Construct a temporary directory.
+    /**
+     * Construct a temporary directory.
+     */
     TempDir()
     {
         auto const dir = boost::filesystem::temp_directory_path();
@@ -33,7 +36,9 @@ public:
         boost::filesystem::create_directory(path_);
     }
 
-    /// Destroy a temporary directory.
+    /**
+     * Destroy a temporary directory.
+     */
     ~TempDir()
     {
         // use non-throwing calls in the destructor
@@ -42,17 +47,20 @@ public:
         // TODO: warn/notify if ec set ?
     }
 
-    /// Get the native path for the temporary directory
+    /**
+     * Get the native path for the temporary directory
+     */
     [[nodiscard]] std::string
     path() const
     {
         return path_.string();
     }
 
-    /** Get the native path for the a file.
-
-        The file does not need to exist.
-    */
+    /**
+     * Get the native path for the a file.
+     *
+     * The file does not need to exist.
+     */
     [[nodiscard]] std::string
     file(std::string const& name) const
     {

include/xrpl/beast/xor_shift_engine.h

@@ -85,14 +85,15 @@ XorShiftEngine<Unused>::murmurhash3(result_type x) -> result_type
 
 }  // namespace detail
 
-/** XOR-shift Generator.
-
-    Meets the requirements of UniformRandomNumberGenerator.
-
-    Simple and fast RNG based on:
-    http://xorshift.di.unimi.it/xorshift128plus.c
-    does not accept seed==0
-*/
+/**
+ * XOR-shift Generator.
+ *
+ * Meets the requirements of UniformRandomNumberGenerator.
+ *
+ * Simple and fast RNG based on:
+ * http://xorshift.di.unimi.it/xorshift128plus.c
+ * does not accept seed==0
+ */
 using xor_shift_engine = detail::XorShiftEngine<>;
 
 }  // namespace beast

include/xrpl/conditions/Condition.h

@@ -24,42 +24,49 @@ enum class Type : std::uint8_t {
 class Condition
 {
 public:
-    /** The largest binary condition we support.
-
-        @note This value will be increased in the future, but it
-              must never decrease, as that could cause conditions
-              that were previously considered valid to no longer
-              be allowed.
-    */
+    /**
+     * The largest binary condition we support.
+     *
+     * @note This value will be increased in the future, but it
+     *       must never decrease, as that could cause conditions
+     *       that were previously considered valid to no longer
+     *       be allowed.
+     */
     static constexpr std::size_t kMaxSerializedCondition = 128;
 
-    /** Load a condition from its binary form
-
-        @param s The buffer containing the fulfillment to load.
-        @param ec Set to the error, if any occurred.
-
-        The binary format for a condition is specified in the
-        cryptoconditions RFC. See:
-
-        https://tools.ietf.org/html/draft-thomas-crypto-conditions-02#section-7.2
-    */
+    /**
+     * Load a condition from its binary form
+     *
+     * @param s The buffer containing the fulfillment to load.
+     * @param ec Set to the error, if any occurred.
+     *
+     * The binary format for a condition is specified in the
+     * cryptoconditions RFC. See:
+     *
+     * https://tools.ietf.org/html/draft-thomas-crypto-conditions-02#section-7.2
+     */
     static std::unique_ptr<Condition>
     deserialize(Slice s, std::error_code& ec);
 
 public:
     Type type;
 
-    /** An identifier for this condition.
-
-        This fingerprint is meant to be unique only with
-        respect to other conditions of the same type.
-    */
+    /**
+     * An identifier for this condition.
+     *
+     * This fingerprint is meant to be unique only with
+     * respect to other conditions of the same type.
+     */
     Buffer fingerprint;
 
-    /** The cost associated with this condition. */
+    /**
+     * The cost associated with this condition.
+     */
     std::uint32_t cost;
 
-    /** For compound conditions, set of conditions includes */
+    /**
+     * For compound conditions, set of conditions includes
+     */
     std::set<Type> subtypes;
 
     Condition(Type t, std::uint32_t c, Slice fp) : type(t), fingerprint(fp), cost(c)

include/xrpl/conditions/Fulfillment.h

@@ -14,64 +14,73 @@ namespace xrpl::cryptoconditions {
 struct Fulfillment
 {
 public:
-    /** The largest binary fulfillment we support.
-
-        @note This value will be increased in the future, but it
-              must never decrease, as that could cause fulfillments
-              that were previously considered valid to no longer
-              be allowed.
-    */
+    /**
+     * The largest binary fulfillment we support.
+     *
+     * @note This value will be increased in the future, but it
+     *       must never decrease, as that could cause fulfillments
+     *       that were previously considered valid to no longer
+     *       be allowed.
+     */
     static constexpr std::size_t kMaxSerializedFulfillment = 256;
 
-    /** Load a fulfillment from its binary form
-
-        @param s The buffer containing the fulfillment to load.
-        @param ec Set to the error, if any occurred.
-
-        The binary format for a fulfillment is specified in the
-        cryptoconditions RFC. See:
-
-        https://tools.ietf.org/html/draft-thomas-crypto-conditions-02#section-7.3
-    */
+    /**
+     * Load a fulfillment from its binary form
+     *
+     * @param s The buffer containing the fulfillment to load.
+     * @param ec Set to the error, if any occurred.
+     *
+     * The binary format for a fulfillment is specified in the
+     * cryptoconditions RFC. See:
+     *
+     * https://tools.ietf.org/html/draft-thomas-crypto-conditions-02#section-7.3
+     */
     static std::unique_ptr<Fulfillment>
     deserialize(Slice s, std::error_code& ec);
 
 public:
     virtual ~Fulfillment() = default;
 
-    /** Returns the fulfillment's fingerprint:
-
-        The fingerprint is an octet string uniquely
-        representing this fulfillment's condition
-        with respect to other conditions of the
-        same type.
-   */
+    /**
+     * Returns the fulfillment's fingerprint:
+     *
+     * The fingerprint is an octet string uniquely
+     * representing this fulfillment's condition
+     * with respect to other conditions of the
+     * same type.
+     */
     [[nodiscard]] virtual Buffer
     fingerprint() const = 0;
 
-    /** Returns the type of this condition. */
+    /**
+     * Returns the type of this condition.
+     */
     [[nodiscard]] virtual Type
     type() const = 0;
 
-    /** Validates a fulfillment. */
+    /**
+     * Validates a fulfillment.
+     */
     [[nodiscard]] virtual bool
     validate(Slice data) const = 0;
 
-    /** Calculates the cost associated with this fulfillment. *
-
-        The cost function is deterministic and depends on the
-        type and properties of the condition and the fulfillment
-        that the condition is generated from.
-    */
+    /**
+     * Calculates the cost associated with this fulfillment. *
+     *
+     * The cost function is deterministic and depends on the
+     * type and properties of the condition and the fulfillment
+     * that the condition is generated from.
+     */
     [[nodiscard]] virtual std::uint32_t
     cost() const = 0;
 
-    /** Returns the condition associated with the given fulfillment.
-
-        This process is completely deterministic. All implementations
-        will, if compliant, produce the identical condition for the
-        same fulfillment.
-    */
+    /**
+     * Returns the condition associated with the given fulfillment.
+     *
+     * This process is completely deterministic. All implementations
+     * will, if compliant, produce the identical condition for the
+     * same fulfillment.
+     */
     [[nodiscard]] virtual Condition
     condition() const = 0;
 };
@@ -90,36 +99,40 @@ operator!=(Fulfillment const& lhs, Fulfillment const& rhs)
     return !(lhs == rhs);
 }
 
-/** Determine whether the given fulfillment and condition match */
+/**
+ * Determine whether the given fulfillment and condition match
+ */
 bool
 match(Fulfillment const& f, Condition const& c);
 
-/** Verify if the given message satisfies the fulfillment.
-
-    @param f The fulfillment
-    @param c The condition
-    @param m The message
-
-    @note the message is not relevant for some conditions
-          and a fulfillment will successfully satisfy its
-          condition for any given message.
-*/
+/**
+ * Verify if the given message satisfies the fulfillment.
+ *
+ * @param f The fulfillment
+ * @param c The condition
+ * @param m The message
+ *
+ * @note the message is not relevant for some conditions
+ *       and a fulfillment will successfully satisfy its
+ *       condition for any given message.
+ */
 bool
 validate(Fulfillment const& f, Condition const& c, Slice m);
 
-/** Verify a cryptoconditional trigger.
-
-    A cryptoconditional trigger is a cryptocondition with
-    an empty message.
-
-    When using such triggers, it is recommended that the
-    trigger be of type preimage, prefix or threshold. If
-    a signature type is used (i.e. Ed25519 or RSA-SHA256)
-    then the Ed25519 or RSA keys should be single-use keys.
-
-    @param f The fulfillment
-    @param c The condition
-*/
+/**
+ * Verify a cryptoconditional trigger.
+ *
+ * A cryptoconditional trigger is a cryptocondition with
+ * an empty message.
+ *
+ * When using such triggers, it is recommended that the
+ * trigger be of type preimage, prefix or threshold. If
+ * a signature type is used (i.e. Ed25519 or RSA-SHA256)
+ * then the Ed25519 or RSA keys should be single-use keys.
+ *
+ * @param f The fulfillment
+ * @param c The condition
+ */
 bool
 validate(Fulfillment const& f, Condition const& c);
 

include/xrpl/conditions/detail/PreimageSha256.h

@@ -18,23 +18,25 @@ namespace xrpl::cryptoconditions {
 class PreimageSha256 final : public Fulfillment
 {
 public:
-    /** The maximum allowed length of a preimage.
-
-        The specification does not specify a minimum supported
-        length, nor does it require all conditions to support
-        the same minimum length.
-
-        While future versions of this code will never lower
-        this limit, they may opt to raise it.
-    */
+    /**
+     * The maximum allowed length of a preimage.
+     *
+     * The specification does not specify a minimum supported
+     * length, nor does it require all conditions to support
+     * the same minimum length.
+     *
+     * While future versions of this code will never lower
+     * this limit, they may opt to raise it.
+     */
     static constexpr std::size_t kMaxPreimageLength = 128;
 
-    /** Parse the payload for a PreimageSha256 condition
-
-        @param s A slice containing the DER encoded payload
-        @param ec indicates success or failure of the operation
-        @return the preimage, if successful; empty pointer otherwise.
-    */
+    /**
+     * Parse the payload for a PreimageSha256 condition
+     *
+     * @param s A slice containing the DER encoded payload
+     * @param ec indicates success or failure of the operation
+     * @return the preimage, if successful; empty pointer otherwise.
+     */
     static std::unique_ptr<Fulfillment>
     deserialize(Slice s, std::error_code& ec)
     {

include/xrpl/config/BasicConfig.h

@@ -21,9 +21,10 @@ using IniFileSections = std::unordered_map<std::string, std::vector<std::string>
 
 //------------------------------------------------------------------------------
 
-/** Holds a collection of configuration values.
-    A configuration file contains zero or more sections.
-*/
+/**
+ * Holds a collection of configuration values.
+ * A configuration file contains zero or more sections.
+ */
 class Section
 {
 private:
@@ -36,28 +37,34 @@ private:
     using const_iterator = decltype(lookup_)::const_iterator;
 
 public:
-    /** Create an empty section. */
+    /**
+     * Create an empty section.
+     */
     explicit Section(std::string name = "");
 
-    /** Returns the name of this section. */
+    /**
+     * Returns the name of this section.
+     */
     [[nodiscard]] std::string const&
     name() const
     {
         return name_;
     }
 
-    /** Returns all the lines in the section.
-        This includes everything.
-    */
+    /**
+     * Returns all the lines in the section.
+     * This includes everything.
+     */
     [[nodiscard]] std::vector<std::string> const&
     lines() const
     {
         return lines_;
     }
 
-    /** Returns all the values in the section.
-        Values are non-empty lines which are not key/value pairs.
-    */
+    /**
+     * Returns all the values in the section.
+     * Values are non-empty lines which are not key/value pairs.
+     */
     [[nodiscard]] std::vector<std::string> const&
     values() const
     {
@@ -84,7 +91,7 @@ public:
      * Get the legacy value for this section.
      *
      * @return The retrieved value. A section with an empty legacy value returns
-               an empty string.
+     *         an empty string.
      */
     [[nodiscard]] std::string
     legacy() const
@@ -99,28 +106,34 @@ public:
         return lines_[0];
     }
 
-    /** Set a key/value pair.
-        The previous value is discarded.
-    */
+    /**
+     * Set a key/value pair.
+     * The previous value is discarded.
+     */
     void
     set(std::string const& key, std::string const& value);
 
-    /** Append a set of lines to this section.
-        Lines containing key/value pairs are added to the map,
-        else they are added to the values list. Everything is
-        added to the lines list.
-    */
+    /**
+     * Append a set of lines to this section.
+     * Lines containing key/value pairs are added to the map,
+     * else they are added to the values list. Everything is
+     * added to the lines list.
+     */
     void
     append(std::vector<std::string> const& lines);
 
-    /** Append a line to this section. */
+    /**
+     * Append a line to this section.
+     */
     void
     append(std::string const& line)
     {
         append(std::vector<std::string>{line});
     }
 
-    /** Returns `true` if a key with the given name exists. */
+    /**
+     * Returns `true` if a key with the given name exists.
+     */
     [[nodiscard]] bool
     exists(std::string const& name) const;
 
@@ -134,7 +147,9 @@ public:
         return boost::lexical_cast<T>(iter->second);
     }
 
-    /// Returns a value if present, else another value.
+    /**
+     * Returns a value if present, else another value.
+     */
     template <class T>
     [[nodiscard]] T
     valueOr(std::string const& name, T const& other) const
@@ -199,23 +214,27 @@ public:
 
 //------------------------------------------------------------------------------
 
-/** Holds unparsed configuration information.
-    The raw data sections are processed with intermediate parsers specific
-    to each module instead of being all parsed in a central location.
-*/
+/**
+ * Holds unparsed configuration information.
+ * The raw data sections are processed with intermediate parsers specific
+ * to each module instead of being all parsed in a central location.
+ */
 class BasicConfig
 {
 private:
     std::unordered_map<std::string, Section> map_;
 
 public:
-    /** Returns `true` if a section with the given name exists. */
+    /**
+     * Returns `true` if a section with the given name exists.
+     */
     [[nodiscard]] bool
     exists(std::string const& name) const;
 
-    /** Returns the section with the given name.
-        If the section does not exist, an empty section is returned.
-    */
+    /**
+     * Returns the section with the given name.
+     * If the section does not exist, an empty section is returned.
+     */
     /** @{ */
     Section&
     section(std::string const& name);
@@ -236,37 +255,39 @@ public:
     }
     /** @} */
 
-    /** Overwrite a key/value pair with a command line argument
-        If the section does not exist it is created.
-        The previous value, if any, is overwritten.
-    */
+    /**
+     * Overwrite a key/value pair with a command line argument
+     * If the section does not exist it is created.
+     * The previous value, if any, is overwritten.
+     */
     void
     overwrite(std::string const& section, std::string const& key, std::string const& value);
 
-    /** Remove all the key/value pairs from the section.
+    /**
+     * Remove all the key/value pairs from the section.
      */
     void
     deprecatedClearSection(std::string const& section);
 
     /**
-     *  Set a value that is not a key/value pair.
+     * Set a value that is not a key/value pair.
      *
-     *  The value is stored as the section's first value and may be retrieved
-     *  through section::legacy.
+     * The value is stored as the section's first value and may be retrieved
+     * through section::legacy.
      *
-     *  @param section Name of the section to modify.
-     *  @param value Contents of the legacy value.
+     * @param section Name of the section to modify.
+     * @param value Contents of the legacy value.
      */
     void
     legacy(std::string const& section, std::string value);
 
     /**
-     *  Get the legacy value of a section. A section with a
-     *  single-line value may be retrieved as a legacy value.
+     * Get the legacy value of a section. A section with a
+     * single-line value may be retrieved as a legacy value.
      *
-     *  @param sectionName Retrieve the contents of this section's
-     *         legacy value.
-     *  @return Contents of the legacy value.
+     * @param sectionName Retrieve the contents of this section's
+     *        legacy value.
+     * @return Contents of the legacy value.
      */
     [[nodiscard]] std::string
     legacy(std::string const& sectionName) const;
@@ -289,11 +310,12 @@ protected:
 
 //------------------------------------------------------------------------------
 
-/** Set a value from a configuration Section
-    If the named value is not found or doesn't parse as a T,
-    the variable is unchanged.
-    @return `true` if value was set.
-*/
+/**
+ * Set a value from a configuration Section
+ * If the named value is not found or doesn't parse as a T,
+ * the variable is unchanged.
+ * @return `true` if value was set.
+ */
 template <class T>
 bool
 set(T& target, std::string const& name, Section const& section)
@@ -312,11 +334,12 @@ set(T& target, std::string const& name, Section const& section)
     return foundAndValid;
 }
 
-/** Set a value from a configuration Section
-    If the named value is not found or doesn't cast to T,
-    the variable is assigned the default.
-    @return `true` if the named value was found and is valid.
-*/
+/**
+ * Set a value from a configuration Section
+ * If the named value is not found or doesn't cast to T,
+ * the variable is assigned the default.
+ * @return `true` if the named value was found and is valid.
+ */
 template <class T>
 bool
 set(T& target, T const& defaultValue, std::string const& name, Section const& section)
@@ -327,10 +350,11 @@ set(T& target, T const& defaultValue, std::string const& name, Section const& se
     return foundAndValid;
 }
 
-/** Retrieve a key/value pair from a section.
-    @return The value string converted to T if it exists
-            and can be parsed, or else defaultValue.
-*/
+/**
+ * Retrieve a key/value pair from a section.
+ * @return The value string converted to T if it exists
+ *         and can be parsed, or else defaultValue.
+ */
 // NOTE This routine might be more clumsy than the previous two
 template <class T = std::string>
 T

include/xrpl/core/ClosureCounter.h

@@ -30,8 +30,8 @@ namespace xrpl {
  * the caller that they should drop the closure and cancel their operation.
  * `join` blocks until all existing closure substitutes are destroyed.
  *
- * \tparam Ret The return type of the closure.
- * \tparam Args The argument types of the closure.
+ * @tparam Ret The return type of the closure.
+ * @tparam Args The argument types of the closure.
  */
 template <typename Ret, typename... Args>
 class ClosureCounter
@@ -131,18 +131,21 @@ public:
     ClosureCounter&
     operator=(ClosureCounter const&) = delete;
 
-    /** Destructor verifies all in-flight closures are complete. */
+    /**
+     * Destructor verifies all in-flight closures are complete.
+     */
     ~ClosureCounter()
     {
         using namespace std::chrono_literals;
         join("ClosureCounter", 1s, debugLog());
     }
 
-    /** Returns once all counted in-flight closures are destroyed.
-
-        @param name Name reported if join time exceeds wait.
-        @param wait If join() exceeds this duration report to Journal.
-        @param j Journal written to if wait is exceeded.
+    /**
+     * Returns once all counted in-flight closures are destroyed.
+     *
+     * @param name Name reported if join time exceeds wait.
+     * @param wait If join() exceeds this duration report to Journal.
+     * @param j Journal written to if wait is exceeded.
      */
     void
     join(char const* name, std::chrono::milliseconds wait, beast::Journal j)
@@ -160,13 +163,14 @@ public:
         }
     }
 
-    /** Wrap the passed closure with a reference counter.
-
-        @param closure Closure that accepts Args parameters and returns Ret.
-        @return If join() has been called returns std::nullopt.  Otherwise
-                returns a std::optional that wraps closure with a
-                reference counter.
-    */
+    /**
+     * Wrap the passed closure with a reference counter.
+     *
+     * @param closure Closure that accepts Args parameters and returns Ret.
+     * @return If join() has been called returns std::nullopt.  Otherwise
+     *         returns a std::optional that wraps closure with a
+     *         reference counter.
+     */
     template <class Closure>
     std::optional<Substitute<Closure>>
     wrap(Closure&& closure)
@@ -180,19 +184,22 @@ public:
         return ret;
     }
 
-    /** Current number of Closures outstanding.  Only useful for testing. */
+    /**
+     * Current number of Closures outstanding.  Only useful for testing.
+     */
     int
     count() const
     {
         return closureCount_;
     }
 
-    /** Returns true if this has been joined.
-
-        Even if true is returned, counted closures may still be in flight.
-        However if (joined() && (count() == 0)) there should be no more
-        counted closures in flight.
-    */
+    /**
+     * Returns true if this has been joined.
+     *
+     * Even if true is returned, counted closures may still be in flight.
+     * However if (joined() && (count() == 0)) there should be no more
+     * counted closures in flight.
+     */
     bool
     joined() const
     {

include/xrpl/core/Coro.ipp

@@ -4,8 +4,10 @@
 
 namespace xrpl {
 
-/// Coroutine stack size (1.5 MB). Increased from 1 MB because
-/// ASAN-instrumented deep call stacks exceeded the original limit.
+/**
+ * Coroutine stack size (1.5 MB). Increased from 1 MB because
+ * ASAN-instrumented deep call stacks exceeded the original limit.
+ */
 constexpr std::size_t kCoroStackSize = 1536 * 1024;
 
 template <class F>

include/xrpl/core/HashRouter.h

@@ -75,19 +75,21 @@ any(HashRouterFlags flags)
 
 class Config;
 
-/** Routing table for objects identified by hash.
-
-    This table keeps track of which hashes have been received by which peers.
-    It is used to manage the routing and broadcasting of messages in the peer
-    to peer overlay.
-*/
+/**
+ * Routing table for objects identified by hash.
+ *
+ * This table keeps track of which hashes have been received by which peers.
+ * It is used to manage the routing and broadcasting of messages in the peer
+ * to peer overlay.
+ */
 class HashRouter
 {
 public:
     // The type here *MUST* match the type of Peer::id_t
     using PeerShortID = std::uint32_t;
 
-    /** Structure used to customize @ref HashRouter behavior.
+    /**
+     * Structure used to customize @ref HashRouter behavior.
      *
      * Even though these items are configurable, they are undocumented. Don't
      * change them unless there is a good reason, and network-wide coordination
@@ -97,22 +99,27 @@ public:
      */
     struct Setup
     {
-        /// Default constructor
+        /**
+         * Default constructor
+         */
         explicit Setup() = default;
 
         using seconds = std::chrono::seconds;
 
-        /** Expiration time for a hash entry
+        /**
+         * Expiration time for a hash entry
          */
         seconds holdTime{300};
 
-        /** Amount of time required before a relayed item will be relayed again.
+        /**
+         * Amount of time required before a relayed item will be relayed again.
          */
         seconds relayTime{30};
     };
 
 private:
-    /** An entry in the routing table.
+    /**
+     * An entry in the routing table.
      */
     class Entry : public CountedObject<Entry>
     {
@@ -138,26 +145,31 @@ private:
             flags_ |= flagsToSet;
         }
 
-        /** Return set of peers we've relayed to and reset tracking */
+        /**
+         * Return set of peers we've relayed to and reset tracking
+         */
         std::set<PeerShortID>
         releasePeerSet()
         {
             return std::move(peers_);
         }
 
-        /** Return seated relay time point if the message has been relayed */
+        /**
+         * Return seated relay time point if the message has been relayed
+         */
         [[nodiscard]] std::optional<Stopwatch::time_point>
         relayed() const
         {
             return relayed_;
         }
 
-        /** Determines if this item should be relayed.
-
-            Checks whether the item has been recently relayed.
-            If it has, return false. If it has not, update the
-            last relay timestamp and return true.
-        */
+        /**
+         * Determines if this item should be relayed.
+         *
+         * Checks whether the item has been recently relayed.
+         * If it has, return false. If it has not, update the
+         * last relay timestamp and return true.
+         */
         bool
         shouldRelay(Stopwatch::time_point const& now, std::chrono::seconds relayTime)
         {
@@ -203,11 +215,13 @@ public:
     bool
     addSuppressionPeer(uint256 const& key, PeerShortID peer);
 
-    /** Add a suppression peer and get message's relay status.
+    /**
+     * Add a suppression peer and get message's relay status.
      * Return pair:
      * element 1: true if the peer is added.
      * element 2: optional is seated to the relay time point or
-     * is unseated if has not relayed yet. */
+     * is unseated if has not relayed yet.
+     */
     std::pair<bool, std::optional<Stopwatch::time_point>>
     addSuppressionPeerWithStatus(uint256 const& key, PeerShortID peer);
 
@@ -222,28 +236,30 @@ public:
         HashRouterFlags& flags,
         std::chrono::seconds txInterval);
 
-    /** Set the flags on a hash.
-
-        @return `true` if the flags were changed. `false` if unchanged.
-    */
+    /**
+     * Set the flags on a hash.
+     *
+     * @return `true` if the flags were changed. `false` if unchanged.
+     */
     bool
     setFlags(uint256 const& key, HashRouterFlags flags);
 
     HashRouterFlags
     getFlags(uint256 const& key);
 
-    /** Determines whether the hashed item should be relayed.
-
-        Effects:
-
-            If the item should be relayed, this function will not
-            return a seated optional again until the relay time has expired.
-            The internal set of peers will also be reset.
-
-        @return A `std::optional` set of peers which do not need to be
-            relayed to. If the result is unseated, the item should
-            _not_ be relayed.
-    */
+    /**
+     * Determines whether the hashed item should be relayed.
+     *
+     * Effects:
+     *
+     *     If the item should be relayed, this function will not
+     *     return a seated optional again until the relay time has expired.
+     *     The internal set of peers will also be reset.
+     *
+     * @return A `std::optional` set of peers which do not need to be
+     *     relayed to. If the result is unseated, the item should
+     *     _not_ be relayed.
+     */
     std::optional<std::set<PeerShortID>>
     shouldRelay(uint256 const& key);
 

include/xrpl/core/Job.h

@@ -83,12 +83,13 @@ class Job : public CountedObject<Job>
 public:
     using clock_type = std::chrono::steady_clock;
 
-    /** Default constructor.
-
-        Allows Job to be used as a container type.
-
-        This is used to allow things like jobMap [key] = value.
-    */
+    /**
+     * Default constructor.
+     *
+     * Allows Job to be used as a container type.
+     *
+     * This is used to allow things like jobMap [key] = value.
+     */
     // VFALCO NOTE I'd prefer not to have a default constructed object.
     //             What is the semantic meaning of a Job with no associated
     //             function? Having the invariant "all Job objects refer to
@@ -108,7 +109,9 @@ public:
     [[nodiscard]] JobType
     getType() const;
 
-    /** Returns the time when the job was queued. */
+    /**
+     * Returns the time when the job was queued.
+     */
     [[nodiscard]] clock_type::time_point const&
     queueTime() const;
 

include/xrpl/core/JobQueue.h

@@ -45,20 +45,23 @@ struct CoroCreateT
     explicit CoroCreateT() = default;
 };
 
-/** A pool of threads to perform work.
-
-    A job posted will always run to completion.
-
-    Coroutines that are suspended must be resumed,
-    and run to completion.
-
-    When the JobQueue stops, it waits for all jobs
-    and coroutines to finish.
-*/
+/**
+ * A pool of threads to perform work.
+ *
+ * A job posted will always run to completion.
+ *
+ * Coroutines that are suspended must be resumed,
+ * and run to completion.
+ *
+ * When the JobQueue stops, it waits for all jobs
+ * and coroutines to finish.
+ */
 class JobQueue : private Workers::Callback
 {
 public:
-    /** Coroutines must run to completion. */
+    /**
+     * Coroutines must run to completion.
+     */
     class Coro : public std::enable_shared_from_this<Coro>
     {
     private:
@@ -87,55 +90,64 @@ public:
 
         ~Coro();
 
-        /** Suspend coroutine execution.
-            Effects:
-              The coroutine's stack is saved.
-              The associated Job thread is released.
-            Note:
-              The associated Job function returns.
-              Undefined behavior if called consecutively without a corresponding
-           post.
-        */
+        /**
+         * Suspend coroutine execution.
+         *  Effects:
+         *    The coroutine's stack is saved.
+         *    The associated Job thread is released.
+         *  Note:
+         *    The associated Job function returns.
+         *    Undefined behavior if called consecutively without a corresponding
+         * post.
+         */
         void
         yield() const;
 
-        /** Schedule coroutine execution.
-            Effects:
-              Returns immediately.
-              A new job is scheduled to resume the execution of the coroutine.
-              When the job runs, the coroutine's stack is restored and execution
-                continues at the beginning of coroutine function or the
-           statement after the previous call to yield. Undefined behavior if
-           called after the coroutine has completed with a return (as opposed to
-           a yield()). Undefined behavior if post() or resume() called
-           consecutively without a corresponding yield.
-
-            @return true if the Coro's job is added to the JobQueue.
-        */
+        /**
+         * Schedule coroutine execution.
+         * Effects:
+         *   Returns immediately.
+         *   A new job is scheduled to resume the execution of the coroutine.
+         *   When the job runs, the coroutine's stack is restored and execution
+         *     continues at the beginning of coroutine function or the
+         * statement after the previous call to yield. Undefined behavior if
+         * called after the coroutine has completed with a return (as opposed to
+         * a yield()). Undefined behavior if post() or resume() called
+         * consecutively without a corresponding yield.
+         *
+         * @return true if the Coro's job is added to the JobQueue.
+         */
         bool
         post();
 
-        /** Resume coroutine execution.
-            Effects:
-               The coroutine continues execution from where it last left off
-                 using this same thread.
-               If the coroutine has already completed, returns immediately
-                 (handles the documented post-before-yield race condition).
-            Undefined behavior if resume() or post() called consecutively
-              without a corresponding yield.
-        */
+        /**
+         * Resume coroutine execution.
+         * Effects:
+         *    The coroutine continues execution from where it last left off
+         *      using this same thread.
+         *    If the coroutine has already completed, returns immediately
+         *      (handles the documented post-before-yield race condition).
+         * Undefined behavior if resume() or post() called consecutively
+         *   without a corresponding yield.
+         */
         void
         resume();
 
-        /** Returns true if the Coro is still runnable (has not returned). */
+        /**
+         * Returns true if the Coro is still runnable (has not returned).
+         */
         [[nodiscard]] bool
         runnable() const;
 
-        /** Once called, the Coro allows early exit without an assert. */
+        /**
+         * Once called, the Coro allows early exit without an assert.
+         */
         void
         expectEarlyExit();
 
-        /** Waits until coroutine returns from the user function. */
+        /**
+         * Waits until coroutine returns from the user function.
+         */
         void
         join();
     };
@@ -150,14 +162,15 @@ public:
         perf::PerfLog& perfLog);
     ~JobQueue() override;
 
-    /** Adds a job to the JobQueue.
-
-        @param type The type of job.
-        @param name Name of the job.
-        @param jobHandler Callable with signature void(). Called when the job is executed.
-
-        @return true if jobHandler added to queue.
-    */
+    /**
+     * Adds a job to the JobQueue.
+     *
+     * @param type The type of job.
+     * @param name Name of the job.
+     * @param jobHandler Callable with signature void(). Called when the job is executed.
+     *
+     * @return true if jobHandler added to queue.
+     */
     template <typename JobHandler>
     bool
     addJob(JobType type, std::string const& name, JobHandler&& jobHandler)
@@ -170,40 +183,46 @@ public:
         return false;
     }
 
-    /** Creates a coroutine and adds a job to the queue which will run it.
-
-        @param t The type of job.
-        @param name Name of the job.
-        @param f Has a signature of void(std::shared_ptr<Coro>). Called when the
-       job executes.
-
-        @return shared_ptr to posted Coro.  nullptr if post was not successful.
-    */
+    /**
+     * Creates a coroutine and adds a job to the queue which will run it.
+     *
+     * @param t The type of job.
+     * @param name Name of the job.
+     * @param f Has a signature of void(std::shared_ptr<Coro>). Called when the
+     * job executes.
+     *
+     * @return shared_ptr to posted Coro.  nullptr if post was not successful.
+     */
     template <class F>
     std::shared_ptr<Coro>
     postCoro(JobType t, std::string const& name, F&& f);
 
-    /** Jobs waiting at this priority.
+    /**
+     * Jobs waiting at this priority.
      */
     int
     getJobCount(JobType t) const;
 
-    /** Jobs waiting plus running at this priority.
+    /**
+     * Jobs waiting plus running at this priority.
      */
     int
     getJobCountTotal(JobType t) const;
 
-    /** All waiting jobs at or greater than this priority.
+    /**
+     * All waiting jobs at or greater than this priority.
      */
     int
     getJobCountGE(JobType t) const;
 
-    /** Return a scoped LoadEvent.
+    /**
+     * Return a scoped LoadEvent.
      */
     std::unique_ptr<LoadEvent>
     makeLoadEvent(JobType t, std::string const& name);
 
-    /** Add multiple load events.
+    /**
+     * Add multiple load events.
      */
     void
     addLoadEvents(JobType t, int count, std::chrono::milliseconds elapsed);
@@ -216,7 +235,9 @@ public:
     json::Value
     getJson(int c = 0);
 
-    /** Block until no jobs running. */
+    /**
+     * Block until no jobs running.
+     */
     void
     rendezvous();