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Use BOOST_CORE_ALIGNOF in boost/core/max_align.hpp

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This commit is contained in:
Peter Dimov
2023-01-26 03:17:05 +02:00
parent c092532a71
commit 42b3a3f111
2 changed files with 5 additions and 31 deletions
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6
include/boost/core/alignof.hpp
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@ -1,5 +1,5 @@
#ifndef BOOST_CORE_MAX_ALIGN_HPP_INCLUDED #ifndef BOOST_CORE_ALIGNOF_HPP_INCLUDED
#define BOOST_CORE_MAX_ALIGN_HPP_INCLUDED #define BOOST_CORE_ALIGNOF_HPP_INCLUDED
// MS compatible compilers support #pragma once // MS compatible compilers support #pragma once
@ -54,4 +54,4 @@ template<class T> struct alignof_helper
#endif #endif
#endif // #ifndef BOOST_CORE_MAX_ALIGN_HPP_INCLUDED #endif // #ifndef BOOST_CORE_ALIGNOF_HPP_INCLUDED

30
include/boost/core/max_align.hpp
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@ -11,6 +11,7 @@
// Distributed under the Boost Software License, Version 1.0. // Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt // https://www.boost.org/LICENSE_1_0.txt
#include <boost/core/alignof.hpp>
#include <boost/config.hpp> #include <boost/config.hpp>
#include <cstddef> #include <cstddef>
@ -73,34 +74,7 @@ union max_align_t
void (max_align_t::*pmf)(); void (max_align_t::*pmf)();
}; };
#if !defined(BOOST_NO_CXX11_ALIGNOF) BOOST_CONSTEXPR_OR_CONST std::size_t max_align = BOOST_CORE_ALIGNOF( max_align_t );
BOOST_CONSTEXPR_OR_CONST std::size_t max_align = alignof( max_align_t );
#elif defined(__GNUC__)
BOOST_CONSTEXPR_OR_CONST std::size_t max_align = __alignof__( max_align_t );
#elif defined(_MSC_VER)
BOOST_CONSTEXPR_OR_CONST std::size_t max_align = __alignof( max_align_t );
#else
namespace detail
{
struct alignment_of_helper
{
char x;
max_align_t a;
};
} // namespace detail
BOOST_CONSTEXPR_OR_CONST std::size_t max_align = offsetof( core::detail::alignment_of_helper, a );
#endif
} // namespace core } // namespace core
} // namespace boost } // namespace boost