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Merge branch 'develop'

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djowel
2022-09-26 08:11:49 +08:00
parent 6191e9763a
commit 287ca90947
1 changed files with 14 additions and 17 deletions
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31
include/boost/fusion/container/vector/vector.hpp
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@ -168,9 +168,15 @@ namespace boost { namespace fusion
: elem(std::forward<U>(rhs))
{}
using elem_type = T;
T elem;
};
// placed outside of vector_data due to GCC < 6 bug
template <std::size_t J, typename U>
static inline BOOST_FUSION_GPU_ENABLED
store<J, U> store_at_impl(store<J, U>*);
template <typename I, typename ...T>
struct vector_data;
@ -222,32 +228,23 @@ namespace boost { namespace fusion
#endif
}
template <std::size_t N, typename U>
static BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
U& at_detail(store<N, U>* this_)
{
return this_->elem;
}
template <std::size_t N, typename U>
static BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
U const& at_detail(store<N, U> const* this_)
{
return this_->elem;
}
private:
template <std::size_t J>
using store_at = decltype(store_at_impl<J>(static_cast<vector_data*>(nullptr)));
public:
template <typename J>
BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
auto at_impl(J) -> decltype(at_detail<J::value>(&std::declval<vector_data&>()))
typename store_at<J::value>::elem_type& at_impl(J)
{
return at_detail<J::value>(this);
return store_at<J::value>::elem;
}
template <typename J>
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
auto at_impl(J) const -> decltype(at_detail<J::value>(&std::declval<vector_data const&>()))
typename store_at<J::value>::elem_type const& at_impl(J) const
{
return at_detail<J::value>(this);
return store_at<J::value>::elem;
}
};
} // namespace boost::fusion::vector_detail