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Added utility for forcing to be non trivial copyable

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This commit is contained in:
Kohei Takahashi
2018-05-07 23:17:25 +09:00
parent c7ba5595fc
commit b03d1e9458
5 changed files with 275 additions and 34 deletions
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37
include/boost/fusion/support/detail/propagate_trivialness.hpp Normal file
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/*=============================================================================
Copyright (c) 2018 Kohei Takahashi
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
==============================================================================*/
#ifndef BOOST_FUSION_SUPPORT_DETAIL_PROPAGATE_TRIVIALNESS
#define BOOST_FUSION_SUPPORT_DETAIL_PROPAGATE_TRIVIALNESS
#include <boost/fusion/support/config.hpp>
#include <boost/fusion/support/detail/and.hpp>
#include <boost/fusion/support/detail/is_trivially_copyable.hpp>
#include <boost/mpl/if.hpp>
namespace boost { namespace fusion { namespace detail
{
struct trivial_base { };
struct non_trivial_base
{
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
non_trivial_base(non_trivial_base const&) BOOST_NOEXCEPT { }
};
template <typename... T>
struct propagate_trivialness
: mpl::if_c<and_<is_trivially_copyable<T>...>::value
, trivial_base
, non_trivial_base
>::type
{ };
}}} // namespace boost::fusion::detail
#endif