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/*
Copyright (c) 2014 Glen Joseph Fernandes
glenfe at live dot com
Distributed under the Boost Software License,
Version 1.0. (See accompanying file LICENSE_1_0.txt
or copy at http://boost.org/LICENSE_1_0.txt)
*/
#ifndef BOOST_ALIGN_ALIGN_HPP
#define BOOST_ALIGN_ALIGN_HPP
/**
Function align.
@file
@author Glen Fernandes
*/
#include <boost/config.hpp>
/**
@cond
*/
#if !defined(BOOST_NO_CXX11_STD_ALIGN)
#include <boost/align/detail/align_cxx11.hpp>
#else
#include <boost/align/detail/align.hpp>
#endif
#if defined(BOOST_NO_CXX11_STD_ALIGN)
/**
@endcond
*/
/**
Boost namespace.
*/
namespace boost {
/**
Alignment namespace.
*/
namespace alignment {
/**
If it is possible to fit `size` bytes of storage
aligned by `alignment` into the buffer pointed to by
`ptr` with length `space`, the function updates `ptr`
to point to the first possible address of such
storage and decreases `space` by the number of bytes
used for alignment. Otherwise, the function does
nothing.
@param alignment Shall be a fundamental alignment
value or an extended alignment value, and shall be
a power of two.
@param size The size in bytes of storage to fit into
the buffer.
@param ptr Shall point to contiguous storage of at
least `space` bytes.
@param space The length of the buffer.
@return A null pointer if the requested aligned
buffer would not fit into the available space,
otherwise the adjusted value of `ptr`.
@remark **Note:** The function updates its `ptr` and
space arguments so that it can be called repeatedly
with possibly different `alignment` and `size`
arguments for the same buffer.
*/
inline void* align(std::size_t alignment, std::size_t size,
void*& ptr, std::size_t& space);
}
}
/**
@cond
*/
#endif
/**
@endcond
*/
#endif
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