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Change fusion::tuple its base class to vector_data.

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This change aims to improve compile time performance for both of vector and tuple.
This commit is contained in:
Kohei Takahashi
2017-10-03 22:25:03 +09:00
parent b6e5285430
commit 0471a65ca2
1 changed files with 16 additions and 10 deletions
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26
include/boost/fusion/tuple/tuple.hpp
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@ -34,13 +34,19 @@
namespace boost { namespace fusion
{
template <typename ...T>
struct tuple : vector<T...>
struct tuple
: vector_detail::vector_data<
typename detail::make_index_sequence<sizeof...(T)>::type
, T...
>
{
typedef vector<T...> base_type;
typedef vector_detail::vector_data<
typename detail::make_index_sequence<sizeof...(T)>::type
, T...
> base;
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
tuple()
: base_type() {}
BOOST_DEFAULTED_FUNCTION(tuple(), {})
template <
typename ...U
@ -50,7 +56,7 @@ namespace boost { namespace fusion
>
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
tuple(tuple<U...> const& other)
: base_type(other) {}
: base(vector_detail::each_elem(), other) {}
template <
typename ...U
@ -60,7 +66,7 @@ namespace boost { namespace fusion
>
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
tuple(tuple<U...>&& other)
: base_type(std::move(other)) {}
: base(vector_detail::each_elem(), std::move(other)) {}
template <
typename ...U
@ -72,23 +78,23 @@ namespace boost { namespace fusion
/*BOOST_CONSTEXPR*/ BOOST_FUSION_GPU_ENABLED
explicit
tuple(U&&... args)
: base_type(std::forward<U>(args)...) {}
: base(vector_detail::each_elem(), std::forward<U>(args)...) {}
template<typename U1, typename U2>
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
tuple(std::pair<U1, U2> const& other)
: base_type(other.first, other.second) {}
: base(vector_detail::each_elem(), other.first, other.second) {}
template<typename U1, typename U2>
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
tuple(std::pair<U1, U2>&& other)
: base_type(std::move(other.first), std::move(other.second)) {}
: base(vector_detail::each_elem(), std::move(other.first), std::move(other.second)) {}
template<typename U>
BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
tuple& operator=(U&& rhs)
{
base_type::operator=(std::forward<U>(rhs));
base::assign_sequence(std::forward<U>(rhs));
return *this;
}
};