forked from boostorg/fusion
38 lines
1.1 KiB
C++
38 lines
1.1 KiB
C++
/*=============================================================================
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Copyright (c) 2018 Kohei Takahashi
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#ifndef BOOST_FUSION_SUPPORT_DETAIL_PROPAGATE_TRIVIALNESS
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#define BOOST_FUSION_SUPPORT_DETAIL_PROPAGATE_TRIVIALNESS
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#include <boost/fusion/support/config.hpp>
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#include <boost/fusion/support/detail/and.hpp>
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#include <boost/fusion/support/detail/is_trivially_copyable.hpp>
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#include <boost/mpl/if.hpp>
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namespace boost { namespace fusion { namespace detail
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{
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struct trivial_base { };
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struct non_trivial_base
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{
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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non_trivial_base(non_trivial_base const&) BOOST_NOEXCEPT { }
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};
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template <typename... T>
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struct propagate_trivialness
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: mpl::if_c<and_<is_trivially_copyable<T>...>::value
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, trivial_base
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, non_trivial_base
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>::type
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{ };
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}}} // namespace boost::fusion::detail
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#endif
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