forked from boostorg/fusion
38 lines
1.1 KiB
C++
38 lines
1.1 KiB
C++
|
/*=============================================================================
|
||
|
|
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
|
||
|
|
|