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diff --git a/boost/align/detail/aligned_alloc.hpp b/boost/align/detail/aligned_alloc.hpp
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+++ b/boost/align/detail/aligned_alloc.hpp
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+/*
+ (c) 2014 Glen Joseph Fernandes
+ glenjofe at gmail dot com
+
+ Distributed under the Boost Software
+ License, Version 1.0.
+ http://boost.org/LICENSE_1_0.txt
+*/
+#ifndef BOOST_ALIGN_DETAIL_ALIGNED_ALLOC_HPP
+#define BOOST_ALIGN_DETAIL_ALIGNED_ALLOC_HPP
+
+#include <boost/assert.hpp>
+#include <boost/config.hpp>
+#include <boost/align/align.hpp>
+#include <boost/align/alignment_of.hpp>
+#include <boost/align/detail/is_alignment.hpp>
+#include <cstdlib>
+
+namespace boost {
+    namespace alignment {
+        inline void* aligned_alloc(std::size_t alignment,
+            std::size_t size) BOOST_NOEXCEPT
+        {
+            BOOST_ASSERT(detail::is_alignment(alignment));
+            if (alignment < alignment_of<void*>::value) {
+                alignment = alignment_of<void*>::value;
+            }
+            std::size_t n = size + alignment - 1;
+            void* p1 = 0;
+            void* p2 = std::malloc(n + sizeof p1);
+            if (p2) {
+                p1 = static_cast<char*>(p2) + sizeof p1;
+                (void)align(alignment, size, p1, n);
+                *(static_cast<void**>(p1) - 1) = p2;
+            }
+            return p1;
+        }
+
+        inline void aligned_free(void* ptr)
+            BOOST_NOEXCEPT
+        {
+            if (ptr) {
+                void* p = *(static_cast<void**>(ptr) - 1);
+                std::free(p);
+            }
+        }
+    }
+}
+
+#endif