/*=============================================================================
|
Copyright (c) 2014-2015 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 FUSION_TUPLE_14122014_0102
|
#define FUSION_TUPLE_14122014_0102
|
|
#include <boost/fusion/support/config.hpp>
|
#include <boost/fusion/tuple/tuple_fwd.hpp>
|
|
///////////////////////////////////////////////////////////////////////////////
|
// With no variadics, we will use the C++03 version
|
///////////////////////////////////////////////////////////////////////////////
|
#if !defined(BOOST_FUSION_HAS_VARIADIC_TUPLE)
|
# include <boost/fusion/tuple/detail/tuple.hpp>
|
#else
|
|
///////////////////////////////////////////////////////////////////////////////
|
// C++11 interface
|
///////////////////////////////////////////////////////////////////////////////
|
#include <boost/core/enable_if.hpp>
|
#include <boost/fusion/container/vector/vector.hpp>
|
#include <boost/fusion/sequence/intrinsic/size.hpp>
|
#include <boost/fusion/sequence/intrinsic/value_at.hpp>
|
#include <boost/fusion/sequence/intrinsic/at.hpp>
|
#include <boost/fusion/sequence/comparison.hpp>
|
#include <boost/fusion/sequence/io.hpp>
|
#include <boost/fusion/support/detail/and.hpp>
|
#include <boost/type_traits/is_convertible.hpp>
|
#include <utility>
|
|
namespace boost { namespace fusion
|
{
|
template <typename ...T>
|
struct tuple
|
: vector_detail::vector_data<
|
typename detail::make_index_sequence<sizeof...(T)>::type
|
, T...
|
>
|
{
|
typedef vector_detail::vector_data<
|
typename detail::make_index_sequence<sizeof...(T)>::type
|
, T...
|
> base;
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
BOOST_DEFAULTED_FUNCTION(tuple(), {})
|
|
template <
|
typename ...U
|
, typename = typename boost::enable_if_c<
|
sizeof...(U) >= sizeof...(T)
|
>::type
|
>
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
tuple(tuple<U...> const& other)
|
: base(vector_detail::each_elem(), other) {}
|
|
template <
|
typename ...U
|
, typename = typename boost::enable_if_c<
|
sizeof...(U) >= sizeof...(T)
|
>::type
|
>
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
tuple(tuple<U...>&& other)
|
: base(vector_detail::each_elem(), std::move(other)) {}
|
|
template <
|
typename ...U
|
, typename = typename boost::enable_if_c<(
|
fusion::detail::and_<is_convertible<U, T>...>::value &&
|
sizeof...(U) >= 1
|
)>::type
|
>
|
/*BOOST_CONSTEXPR*/ BOOST_FUSION_GPU_ENABLED
|
explicit
|
tuple(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(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(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::assign_sequence(std::forward<U>(rhs));
|
return *this;
|
}
|
};
|
|
template <typename Tuple>
|
struct tuple_size : result_of::size<Tuple> {};
|
|
template <int N, typename Tuple>
|
struct tuple_element : result_of::value_at_c<Tuple, N> {};
|
|
template <int N, typename Tuple>
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
inline typename result_of::at_c<Tuple, N>::type
|
get(Tuple& tup)
|
{
|
return at_c<N>(tup);
|
}
|
|
template <int N, typename Tuple>
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
inline typename result_of::at_c<Tuple const, N>::type
|
get(Tuple const& tup)
|
{
|
return at_c<N>(tup);
|
}
|
}}
|
|
#endif
|
#endif
|
