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Sprout/sprout/operation/fit/push_front_n.hpp
2013-02-07 23:12:57 +09:00

43 lines
1.4 KiB
C++

#ifndef SPROUT_OPERATION_FIT_PUSH_FRONT_N_HPP
#define SPROUT_OPERATION_FIT_PUSH_FRONT_N_HPP
#include <sprout/config.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/operation/fixed/push_front_n.hpp>
#include <sprout/sub_array/sub_array.hpp>
#include <sprout/sub_array/sub.hpp>
namespace sprout {
namespace fit {
namespace result_of {
//
// push_front_n
//
template<std::size_t N, typename Container, typename T, typename... Values>
struct push_front_n {
public:
typedef sprout::sub_array<
typename sprout::container_traits<
typename sprout::fixed::result_of::push_front_n<N, Container, T, Values...>::type
>::internal_type
> type;
};
} // namespace result_of
//
// push_front_n
//
template<std::size_t N, typename Container, typename T, typename... Values>
inline SPROUT_CONSTEXPR typename sprout::fit::result_of::push_front_n<N, Container, T, Values...>::type
push_front_n(Container const& cont, T const& v, Values const&... values) {
return sprout::sub_copy(
sprout::get_internal(sprout::fixed::push_front_n<N>(cont, v, values...)),
sprout::internal_begin_offset(cont),
sprout::internal_end_offset(cont) + (1 + sizeof...(Values)) * N
);
}
} // namespace fit
} // namespace sprout
#endif // #ifndef SPROUT_OPERATION_FIT_PUSH_FRONT_N_HPP