101 lines
2.8 KiB
C++
101 lines
2.8 KiB
C++
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/*
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Copyright (c) 2014 Glen Joseph Fernandes
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glenfe at live dot com
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Distributed under the Boost Software License,
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Version 1.0. (See accompanying file LICENSE_1_0.txt
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or copy at http://boost.org/LICENSE_1_0.txt)
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*/
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#ifndef BOOST_ALIGN_ALIGNED_ALLOC_HPP
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#define BOOST_ALIGN_ALIGNED_ALLOC_HPP
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/**
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Functions aligned_alloc and aligned_free.
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@file
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@author Glen Fernandes
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*/
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#include <boost/config.hpp>
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/**
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@cond
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*/
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#if defined(BOOST_HAS_UNISTD_H)
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#include <unistd.h>
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#endif
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#if defined(__APPLE__) || defined(__APPLE_CC__) || defined(macintosh)
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#include <AvailabilityMacros.h>
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#endif
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#if defined(_MSC_VER)
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#include <boost/align/detail/aligned_alloc_msvc.hpp>
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#elif defined(__MINGW32__) && (__MSVCRT_VERSION__ >= 0x0700)
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#include <boost/align/detail/aligned_alloc_msvc.hpp>
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#elif MAC_OS_X_VERSION_MIN_REQUIRED >= 1090
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#include <boost/align/detail/aligned_alloc_posix.hpp>
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#elif MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
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#include <boost/align/detail/aligned_alloc_macos.hpp>
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#elif defined(__ANDROID__)
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#include <boost/align/detail/aligned_alloc_android.hpp>
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#elif defined(__SunOS_5_11) || defined(__SunOS_5_12)
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#include <boost/align/detail/aligned_alloc_posix.hpp>
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#elif defined(sun) || defined(__sun)
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#include <boost/align/detail/aligned_alloc_sunos.hpp>
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#elif (_POSIX_C_SOURCE >= 200112L) || (_XOPEN_SOURCE >= 600)
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#include <boost/align/detail/aligned_alloc_posix.hpp>
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#else
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#include <boost/align/detail/aligned_alloc.hpp>
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#endif
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/**
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@endcond
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*/
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/**
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Boost namespace.
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*/
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namespace boost {
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/**
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Alignment namespace.
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*/
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namespace alignment {
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/**
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Allocates space for an object whose alignment is
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specified by `alignment`, whose size is
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specified by `size`, and whose value is
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indeterminate.
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@param alignment Shall be a power of two.
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@param size Size of space to allocate.
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@return A null pointer or a pointer to the
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allocated space.
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@remark **Note:** On certain platforms, the
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alignment may be rounded up to `alignof(void*)`
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and the space allocated may be slightly larger
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than `size` bytes, by an additional
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`sizeof(void*)` and `alignment - 1` bytes.
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*/
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inline void* aligned_alloc(std::size_t alignment,
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std::size_t size) BOOST_NOEXCEPT;
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/**
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Causes the space pointed to by `ptr` to be
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deallocated, that is, made available for further
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allocation. If `ptr` is a null pointer, no
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action occurs. Otherwise, if the argument does
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not match a pointer earlier returned by the
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`aligned_alloc` function, or if the space has
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been deallocated by a call to `aligned_free`,
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the behavior is undefined.
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*/
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inline void aligned_free(void* ptr)
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BOOST_NOEXCEPT;
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}
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}
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#endif
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