Sprout/sprout/container/container_construct_traits.hpp
2013-01-14 01:13:48 +09:00

69 lines
2.4 KiB
C++

#ifndef SPROUT_CONTAINER_CONTAINER_TRAITS_CONSTRUCT_TRAITS_HPP
#define SPROUT_CONTAINER_CONTAINER_TRAITS_CONSTRUCT_TRAITS_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/container/container_traits.hpp>
#include <sprout/utility/forward.hpp>
namespace sprout {
//
// container_construct_traits
//
template<typename Container>
struct container_construct_traits;
namespace detail {
template<typename Container, typename... Args>
inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::is_fixed_container<Container>::value,
typename sprout::container_construct_traits<Container>::copied_type
>::type
default_make_container(Args&&... args) {
typedef typename sprout::container_construct_traits<Container>::copied_type copied_type;
return copied_type{{sprout::forward<Args>(args)...}};
}
template<typename Container, typename... Args>
inline SPROUT_CONSTEXPR typename std::enable_if<
!sprout::is_fixed_container<Container>::value,
typename sprout::container_construct_traits<Container>::copied_type
>::type
default_make_container(Args&&... args) {
typedef typename sprout::container_construct_traits<Container>::copied_type copied_type;
return copied_type{sprout::forward<Args>(args)...};
}
template<typename Container>
struct container_construct_traits_impl {
public:
typedef Container copied_type;
public:
template<typename Cont>
static SPROUT_CONSTEXPR copied_type
deep_copy(Cont&& cont) {
return sprout::forward<Cont>(cont);
}
template<typename... Args>
static SPROUT_CONSTEXPR copied_type
make(Args&&... args) {
return sprout::detail::default_make_container<Container>(sprout::forward<Args>(args)...);
}
template<typename Cont, typename... Args>
static SPROUT_CONSTEXPR copied_type
remake(Cont&& cont, typename sprout::container_traits<Container>::difference_type size, Args&&... args) {
return make(sprout::forward<Args>(args)...);
}
};
} // namespace detail
template<typename Container>
struct container_construct_traits
: public sprout::detail::container_construct_traits_impl<Container>
{};
template<typename Container>
struct container_construct_traits<Container const>
: public sprout::container_construct_traits<Container>
{};
} // namespace sprout
#endif // #ifndef SPROUT_CONTAINER_CONTAINER_CONSTRUCT_TRAITS_HPP