83 lines
1.3 KiB
C++
83 lines
1.3 KiB
C++
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#ifndef BOOST_CORE_MAX_ALIGN_HPP_INCLUDED
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#define BOOST_CORE_MAX_ALIGN_HPP_INCLUDED
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// MS compatible compilers support #pragma once
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#if defined(_MSC_VER) && (_MSC_VER >= 1020)
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# pragma once
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#endif
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// Copyright 2023 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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#include <boost/core/alignof.hpp>
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#include <boost/config.hpp>
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#include <cstddef>
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// BOOST_CORE_HAS_FLOAT128
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#if defined(BOOST_HAS_FLOAT128)
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# define BOOST_CORE_HAS_FLOAT128
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#elif defined(__SIZEOF_FLOAT128__)
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# define BOOST_CORE_HAS_FLOAT128
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#elif defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 404) && defined(__i386__)
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# define BOOST_CORE_HAS_FLOAT128
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#endif
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// max_align_t, max_align
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namespace boost
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{
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namespace core
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{
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union max_align_t
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{
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char c;
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short s;
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int i;
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long l;
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#if !defined(BOOST_NO_LONG_LONG)
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boost::long_long_type ll;
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#endif
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#if defined(BOOST_HAS_INT128)
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boost::int128_type i128;
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#endif
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float f;
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double d;
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long double ld;
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#if defined(BOOST_CORE_HAS_FLOAT128)
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__float128 f128;
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#endif
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void* p;
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void (*pf) ();
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int max_align_t::* pm;
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void (max_align_t::*pmf)();
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};
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BOOST_CONSTEXPR_OR_CONST std::size_t max_align = BOOST_CORE_ALIGNOF( max_align_t );
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} // namespace core
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} // namespace boost
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#endif // #ifndef BOOST_CORE_MAX_ALIGN_HPP_INCLUDED
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