From 482c0cfe8322b6f4ba9e48c8ae9b827be5bdb35b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ion=20Gazta=C3=B1aga?= <igaztanaga@gmail.com>
Date: Wed, 4 May 2022 22:55:51 +0200
Subject: [PATCH] Add pointer specialization for value_less

---
 include/boost/intrusive/detail/value_functors.hpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/boost/intrusive/detail/value_functors.hpp b/include/boost/intrusive/detail/value_functors.hpp
index dced9b0..7e220eb 100644
--- a/include/boost/intrusive/detail/value_functors.hpp
+++ b/include/boost/intrusive/detail/value_functors.hpp
@@ -18,6 +18,8 @@
 #  pragma once
 #endif
 
+#include <cstddef>
+
 namespace boost {
 namespace intrusive {
 
@@ -29,6 +31,14 @@ struct value_less
       {  return a < b;  }
 };
 
+//Functors for member algorithm defaults
+template<class T>
+struct value_less<T*>
+{
+   bool operator()(const T *a, const T* b) const
+      {  return std::size_t(a) < std::size_t(b);  }
+};
+
 template<class ValueType>
 struct value_equal
 {