From febc1950935cb85f66fc6ed276016c667a333552 Mon Sep 17 00:00:00 2001
From: Glen Fernandes <glen.fernandes@gmail.com>
Date: Sat, 4 Dec 2021 14:41:23 -0500
Subject: [PATCH] Add default_allocator allocate hint overload in C++03 mode

---
 include/boost/core/default_allocator.hpp      |  6 ++++++
 test/Jamfile.v2                               |  1 +
 test/default_allocator_allocate_hint_test.cpp | 19 +++++++++++++++++++
 3 files changed, 26 insertions(+)
 create mode 100644 test/default_allocator_allocate_hint_test.cpp

diff --git a/include/boost/core/default_allocator.hpp b/include/boost/core/default_allocator.hpp
index 9e466ca..ba8540b 100644
--- a/include/boost/core/default_allocator.hpp
+++ b/include/boost/core/default_allocator.hpp
@@ -108,6 +108,12 @@ struct default_allocator {
     }
 #endif
 
+#if defined(BOOST_NO_CXX11_ALLOCATOR)
+    T* allocate(std::size_t n, const void*) {
+        return allocate(n);
+    }
+#endif
+
 #if (defined(BOOST_LIBSTDCXX_VERSION) && BOOST_LIBSTDCXX_VERSION < 60000) || \
     defined(BOOST_NO_CXX11_ALLOCATOR)
     template<class U, class V>
diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 0518bdc..58d46f5 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -211,6 +211,7 @@ run default_allocator_test.cpp
         <toolset>msvc:<warnings-as-errors>on
         <toolset>gcc:<warnings-as-errors>on
         <toolset>clang:<warnings-as-errors>on ;
+run default_allocator_allocate_hint_test.cpp ;
 
 run noinit_adaptor_test.cpp ;
 run alloc_construct_test.cpp ;
diff --git a/test/default_allocator_allocate_hint_test.cpp b/test/default_allocator_allocate_hint_test.cpp
new file mode 100644
index 0000000..fed2c90
--- /dev/null
+++ b/test/default_allocator_allocate_hint_test.cpp
@@ -0,0 +1,19 @@
+/*
+Copyright 2021 Glen Joseph Fernandes
+(glenjofe@gmail.com)
+
+Distributed under the Boost Software License, Version 1.0.
+(http://www.boost.org/LICENSE_1_0.txt)
+*/
+#include <boost/core/default_allocator.hpp>
+#include <boost/core/allocator_access.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+int main()
+{
+    boost::default_allocator<int> a;
+    int* p = boost::allocator_allocate(a, 1, 0);
+    BOOST_TEST(p != 0);
+    a.deallocate(p, 1);
+    return boost::report_errors();
+}