ARCHIVE/rippled
1
0
Fork 0
mirror of https://github.com/XRPLF/rippled.git synced 2025-11-20 11:05:54 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge remote-tracking branch 'mywork/ximinez/lending-number' into ximinez/lending-XLS-66

Browse Source 
* mywork/ximinez/lending-number:
  Add a distinction between a "valid" and a "representable" Number
  chore: Point xrpld symlink to rippled (6012)
  Catch up the consequences of Number changes
  Fix build error - avoid copy
  Add integer enforcement when converting to XRP/MPTAmount to Number
  Make all STNumber fields "soeDEFAULT"
  Add optional enforcement of valid integer range to Number
This commit is contained in:
Ed Hennis
2025-11-08 17:00:35 -05:00
parent 972841ae29 fabc7bd916
commit ffc0d26d20
15 changed files with 191 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
include/xrpl/basics/Number.h
View File

@@ -28,12 +28,17 @@ public:
/** Describes whether and how to enforce this number as an integer.
*
* - none: No enforcement. The value may vary freely. This is the default.
* - weak: If the absolute value is greater than maxIntValue, valid() will
* return false.
* - strong: Assignment operations will throw if the absolute value is above
* maxIntValue.
* - compatible: If the absolute value is greater than maxIntValue, valid()
* will return false. Needed for backward compatibility with XRP used in
* AMMs, and available for functions that will do their own checking. This
* is the default for automatic conversions from XRPAmount to Number.
* - weak: Like compatible, plus, if the value is unrepresentable (larger
* than maxMantissa), assignment and other operations will throw.
* - strong: Like weak, plus, if the absolute value is invalid (larger than
* maxIntValue), assignment and other operations will throw. This is the
* defalut for automatic conversions from MPTAmount to Number.
*/
enum EnforceInteger { none, weak, strong };
enum EnforceInteger { none, compatible, weak, strong };
private:
using rep = std::int64_t;
@@ -42,8 +47,7 @@ private:
// The enforcement setting is not serialized, and does not affect the
// ledger. If not "none", the value is checked to be within the valid
// integer range. With "strong", the checks will be made as automatic as
// possible.
// integer range. See the enum description for more detail.
EnforceInteger enforceInteger_ = none;
public:
@@ -53,8 +57,8 @@ public:
constexpr static rep maxMantissa = minMantissa * 10 - 1;
static_assert(maxMantissa == 9'999'999'999'999'999LL);
constexpr static rep maxIntValue = maxMantissa / 10;
static_assert(maxIntValue == 999'999'999'999'999LL);
constexpr static rep maxIntValue = maxMantissa / 100;
static_assert(maxIntValue == 99'999'999'999'999LL);
// The range for the exponent when normalized
constexpr static int minExponent = -32768;
@@ -93,6 +97,15 @@ public:
bool
valid() const noexcept;
bool
representable() const noexcept;
/// Combines setIntegerEnforcement(EnforceInteger) and valid()
bool
valid(EnforceInteger enforce);
/// Because this function is const, it should only be used for one-off
/// checks
bool
valid(EnforceInteger enforce) const;
constexpr Number
operator+() const noexcept;