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/*
(c) 2014 Glen Joseph Fernandes
<glenjofe -at- gmail.com>
Distributed under the Boost Software
License, Version 1.0.
http://boost.org/LICENSE_1_0.txt
*/
#ifndef BOOST_ALIGN_DETAIL_ALIGN_HPP
#define BOOST_ALIGN_DETAIL_ALIGN_HPP
#include <boost/assert.hpp>
#include <boost/align/detail/address.hpp>
#include <boost/align/detail/is_alignment.hpp>
#include <cstddef>
namespace boost {
namespace alignment {
inline void* align(std::size_t alignment, std::size_t size,
void*& ptr, std::size_t& space)
{
BOOST_ASSERT(detail::is_alignment(alignment));
std::size_t n = detail::address(ptr) & (alignment - 1);
if (n != 0) {
n = alignment - n;
}
void* p = 0;
if (n <= space && size <= space - n) {
p = static_cast<char*>(ptr) + n;
ptr = p;
space -= n;
}
return p;
}
} /* .alignment */
} /* .boost */
#endif
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