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/*
Copyright 2015 Glen Joseph Fernandes
(glenjofe@gmail.com)
Distributed under the Boost Software License, Version 1.0.
(http://www.boost.org/LICENSE_1_0.txt)
*/
#ifndef BOOST_ALIGN_DETAIL_ALIGN_DOWN_HPP
#define BOOST_ALIGN_DETAIL_ALIGN_DOWN_HPP
#include <boost/align/detail/is_alignment.hpp>
#include <boost/assert.hpp>
namespace boost {
namespace alignment {
inline void*
align_down(void* ptr, std::size_t alignment) BOOST_NOEXCEPT
{
BOOST_ASSERT(detail::is_alignment(alignment));
return reinterpret_cast<void*>(~(alignment - 1) &
reinterpret_cast<std::size_t>(ptr));
}
} /* alignment */
} /* boost */
#endif
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