mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-12-23 21:25:49 +00:00
98 lines
2.9 KiB
C++
98 lines
2.9 KiB
C++
#ifndef SPROUT_TUPLE_SSCRISK_CEL_UTILITY_HPP
|
|
#define SPROUT_TUPLE_SSCRISK_CEL_UTILITY_HPP
|
|
|
|
#include <cstddef>
|
|
#include <type_traits>
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/tuple/tuple.hpp>
|
|
#include <sscrisk/cel/utility.hpp>
|
|
|
|
namespace sprout {
|
|
namespace tuples {
|
|
//
|
|
// tuple_size
|
|
//
|
|
template<typename T1, typename T2>
|
|
struct tuple_size<sscrisk::cel::pair<T1, T2> >
|
|
: public std::integral_constant<std::size_t, 2>
|
|
{};
|
|
|
|
//
|
|
// tuple_element
|
|
//
|
|
namespace detail {
|
|
template<std::size_t I, typename T>
|
|
struct tuple_element_impl;
|
|
template<typename T1, typename T2>
|
|
struct tuple_element_impl<0, sscrisk::cel::pair<T1, T2> > {
|
|
public:
|
|
typedef T1 type;
|
|
};
|
|
template<typename T1, typename T2>
|
|
struct tuple_element_impl<1, sscrisk::cel::pair<T1, T2> > {
|
|
public:
|
|
typedef T2 type;
|
|
};
|
|
} // namespace detail
|
|
template<std::size_t I, typename T1, typename T2>
|
|
struct tuple_element<I, sscrisk::cel::pair<T1, T2> >
|
|
: public sprout::tuples::detail::tuple_element_impl<I, sscrisk::cel::pair<T1, T2> >
|
|
{};
|
|
|
|
//
|
|
// get
|
|
//
|
|
namespace detail {
|
|
template<std::size_t I, typename T>
|
|
struct get_impl;
|
|
template<typename T1, typename T2>
|
|
struct get_impl<0, sscrisk::cel::pair<T1, T2> > {
|
|
public:
|
|
T1& operator()(sscrisk::cel::pair<T1, T2>& t) const {
|
|
return t.first;
|
|
}
|
|
T1 const& operator()(sscrisk::cel::pair<T1, T2> const& t) const {
|
|
return t.first;
|
|
}
|
|
};
|
|
template<typename T1, typename T2>
|
|
struct get_impl<1, sscrisk::cel::pair<T1, T2> > {
|
|
public:
|
|
public:
|
|
T2& operator()(sscrisk::cel::pair<T1, T2>& t) const {
|
|
return t.second;
|
|
}
|
|
T2 const& operator()(sscrisk::cel::pair<T1, T2> const& t) const {
|
|
return t.second;
|
|
}
|
|
};
|
|
} // namespace detail
|
|
template<std::size_t I, typename T1, typename T2>
|
|
typename sprout::tuples::tuple_element<I, sscrisk::cel::pair<T1, T2> >::type& get(
|
|
sscrisk::cel::pair<T1, T2>& t
|
|
) SPROUT_NOEXCEPT
|
|
{
|
|
static_assert(I < 2, "get: index out of range");
|
|
return sprout::tuples::detail::get_impl<I, sscrisk::cel::pair<T1, T2> >()(t);
|
|
}
|
|
template<std::size_t I, typename T1, typename T2>
|
|
SPROUT_CONSTEXPR typename sprout::tuples::tuple_element<I, sscrisk::cel::pair<T1, T2> >::type const& get(
|
|
sscrisk::cel::pair<T1, T2> const& t
|
|
) SPROUT_NOEXCEPT
|
|
{
|
|
static_assert(I < 2, "get: index out of range");
|
|
return sprout::tuples::detail::get_impl<I, sscrisk::cel::pair<T1, T2> >()(t);
|
|
}
|
|
template<std::size_t I, typename T1, typename T2>
|
|
typename sprout::tuples::tuple_element<I, sscrisk::cel::pair<T1, T2> >::type&& get(
|
|
sscrisk::cel::pair<T1, T2>&& t
|
|
) SPROUT_NOEXCEPT
|
|
{
|
|
return std::move(sprout::tuples::get<I>(t));
|
|
}
|
|
} // namespace tuples
|
|
|
|
using sprout::tuples::get;
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_TUPLE_SSCRISK_CEL_UTILITY_HPP
|