forked from boostorg/smart_ptr
38 lines
965 B
C++
38 lines
965 B
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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*
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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_SMART_PTR_DETAIL_SP_ALIGN_HPP
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#define BOOST_SMART_PTR_DETAIL_SP_ALIGN_HPP
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#include <boost/config.hpp>
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#if !defined(BOOST_NO_CXX11_STD_ALIGN)
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#include <memory>
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#endif
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namespace boost {
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namespace detail {
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#if !defined(BOOST_NO_CXX11_STD_ALIGN)
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inline void* sp_align(std::size_t alignment, void* ptr) {
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std::size_t n1 = alignment - 1;
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std::align(alignment, 0, ptr, n1);
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return ptr;
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}
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#else
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inline void* sp_align(std::size_t alignment, void* ptr) {
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std::size_t n1 = (std::size_t)ptr % alignment;
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if (n1 != 0) {
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ptr = (char*)ptr + alignment - n1;
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}
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return ptr;
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}
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#endif
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}
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}
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#endif
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