From c5dc4085969f85c01d4deb155c5ecb68e24cc23f Mon Sep 17 00:00:00 2001
From: Jingchen <a1q123456@users.noreply.github.com>
Date: Tue, 25 Aug 2026 14:13:02 +0000
Subject: [PATCH] fix: Remove `explicit` from std/boost hash specialisation
 default constructors (#8100)

---
 include/xrpl/beast/net/IPAddress.h | 2 +-
 include/xrpl/protocol/Book.h       | 8 ++++----
 include/xrpl/protocol/MPTIssue.h   | 2 +-
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/xrpl/beast/net/IPAddress.h b/include/xrpl/beast/net/IPAddress.h
index 7422778ea2..e636a69ce7 100644
--- a/include/xrpl/beast/net/IPAddress.h
+++ b/include/xrpl/beast/net/IPAddress.h
@@ -103,7 +103,7 @@ namespace boost {
 template <>
 struct hash<::beast::ip::Address>
 {
-    explicit hash() = default;
+    hash() = default;
 
     std::size_t
     operator()(::beast::ip::Address const& addr) const
diff --git a/include/xrpl/protocol/Book.h b/include/xrpl/protocol/Book.h
index a83eb41b24..e6ed3729dd 100644
--- a/include/xrpl/protocol/Book.h
+++ b/include/xrpl/protocol/Book.h
@@ -133,7 +133,7 @@ private:
     using id_hash_type = boost::base_from_member<std::hash<xrpl::MPTID>, 0>;
 
 public:
-    explicit hash() = default;
+    hash() = default;
 
     using value_type = std::size_t;
     using argument_type = xrpl::MPTIssue;
@@ -160,7 +160,7 @@ private:
     mptissue_hasher mMptissueHasher_;
 
 public:
-    explicit hash() = default;
+    hash() = default;
 
     value_type
     operator()(argument_type const& asset) const
@@ -227,7 +227,7 @@ struct hash<xrpl::Issue> : std::hash<xrpl::Issue>
 template <>
 struct hash<xrpl::MPTIssue> : std::hash<xrpl::MPTIssue>
 {
-    explicit hash() = default;
+    hash() = default;
 
     using Base = std::hash<xrpl::MPTIssue>;
 };
@@ -235,7 +235,7 @@ struct hash<xrpl::MPTIssue> : std::hash<xrpl::MPTIssue>
 template <>
 struct hash<xrpl::Asset> : std::hash<xrpl::Asset>
 {
-    explicit hash() = default;
+    hash() = default;
 
     using Base = std::hash<xrpl::Asset>;
 };
diff --git a/include/xrpl/protocol/MPTIssue.h b/include/xrpl/protocol/MPTIssue.h
index 7f473da6a2..49c1fd63dc 100644
--- a/include/xrpl/protocol/MPTIssue.h
+++ b/include/xrpl/protocol/MPTIssue.h
@@ -151,7 +151,7 @@ namespace std {
 template <>
 struct hash<xrpl::MPTID> : xrpl::MPTID::hasher
 {
-    explicit hash() = default;
+    hash() = default;
 };
 
 }  // namespace std