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Sprout/sprout/tuple/sub_array.hpp
2012-05-31 22:28:58 +09:00

45 lines
1.7 KiB
C++

#ifndef SPROUT_TUPLE_SUB_ARRAY_HPP
#define SPROUT_TUPLE_SUB_ARRAY_HPP
#include <cstddef>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/iterator/operation.hpp>
#include <sprout/utility/move.hpp>
#include <sprout/sub_array.hpp>
namespace sprout {
namespace tuples {
//
// get
//
template<std::size_t I, typename Container>
inline SPROUT_CONSTEXPR typename sprout::container_traits<sprout::sub_array<Container> >::value_type&
get(sprout::sub_array<Container>& t)
SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(*sprout::next(sprout::internal_begin(t), I)))
{
static_assert(I < sprout::container_traits<sprout::sub_array<Container> >::static_size, "get: index out of range");
return *sprout::next(sprout::internal_begin(t), I);
}
template<std::size_t I, typename Container>
inline SPROUT_CONSTEXPR typename sprout::container_traits<sprout::sub_array<Container> >::value_type const&
get(sprout::sub_array<Container> const& t)
SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(*sprout::next(sprout::internal_begin(t), I)))
{
static_assert(I < sprout::container_traits<sprout::sub_array<Container> >::static_size, "get: index out of range");
return *sprout::next(sprout::internal_begin(t), I);
}
template<std::size_t I, typename Container>
inline SPROUT_CONSTEXPR typename sprout::container_traits<sprout::sub_array<Container> >::value_type&&
get(sprout::sub_array<Container>&& t)
SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(sprout::move(sprout::tuples::get<I>(t))))
{
return sprout::move(sprout::tuples::get<I>(t));
}
} // namespace tuples
using sprout::tuples::get;
} // namespace sprout
#endif // #ifndef SPROUT_TUPLE_SUB_ARRAY_HPP