2 (c) 2014-2015 Glen Joseph Fernandes
3 <glenjofe -at- gmail.com>
5 Distributed under the Boost Software
7 http://boost.org/LICENSE_1_0.txt
9 #ifndef BOOST_ALIGN_DETAIL_ALIGNED_ALLOC_HPP
10 #define BOOST_ALIGN_DETAIL_ALIGNED_ALLOC_HPP
12 #include <boost/align/detail/is_alignment.hpp>
13 #include <boost/align/align.hpp>
14 #include <boost/align/alignment_of.hpp>
15 #include <boost/assert.hpp>
21 inline void* aligned_alloc(std::size_t alignment, std::size_t size)
24 BOOST_ASSERT(detail::is_alignment(alignment));
26 min_align = alignment_of<void*>::value
28 if (alignment < min_align) {
29 alignment = min_align;
31 std::size_t n = size + alignment - min_align;
33 void* p = std::malloc(sizeof(void*) + n);
35 r = static_cast<char*>(p) + sizeof p;
36 (void)align(alignment, size, r, n);
37 *(static_cast<void**>(r) - 1) = p;
42 inline void aligned_free(void* ptr) BOOST_NOEXCEPT
45 std::free(*(static_cast<void**>(ptr) - 1));