Sprout/sprout/algorithm/fit/random_swap_result.hpp
bolero-MURAKAMI 0c00166c5f fix container_traits for array-like classes
fix coding style algorithm/
2012-09-29 17:10:46 +09:00

72 lines
2.6 KiB
C++

#ifndef SPROUT_ALGORITHM_FIT_RANDOM_SWAP_RESULT_HPP
#define SPROUT_ALGORITHM_FIT_RANDOM_SWAP_RESULT_HPP
#include <sprout/config.hpp>
#include <sprout/tuple/tuple.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/algorithm/fixed/random_swap_result.hpp>
#include <sprout/algorithm/fit/result_of.hpp>
#include <sprout/sub_array.hpp>
namespace sprout {
namespace fit {
namespace detail {
template<typename Container, typename UniformRandomNumberGenerator, typename Shuffled>
inline SPROUT_CONSTEXPR sprout::tuples::tuple<
typename sprout::fit::result_of::algorithm<Container>::type,
typename std::decay<UniformRandomNumberGenerator>::type
>
random_swap_result_impl_1(
Shuffled const& random_swapd,
typename sprout::container_traits<Container>::difference_type offset
)
{
typedef sprout::tuples::tuple<
typename sprout::fit::result_of::algorithm<Container>::type,
typename std::decay<UniformRandomNumberGenerator>::type
> result_type;
return result_type(
sprout::sub_copy(
sprout::get_internal(sprout::tuples::get<0>(random_swapd)),
offset,
offset + sprout::size(sprout::tuples::get<0>(random_swapd))
),
sprout::tuples::get<1>(random_swapd)
);
}
template<typename Container, typename UniformRandomNumberGenerator>
inline SPROUT_CONSTEXPR sprout::tuples::tuple<
typename sprout::fit::result_of::algorithm<Container>::type,
typename std::decay<UniformRandomNumberGenerator>::type
>
random_swap_result_impl(
Container const& cont, UniformRandomNumberGenerator&& g,
typename sprout::container_traits<Container>::difference_type offset
)
{
return sprout::fit::detail::random_swap_result_impl_1<Container, UniformRandomNumberGenerator>(
sprout::fixed::random_swap_result(cont, sprout::forward<UniformRandomNumberGenerator>(g)),
offset
);
}
} // namespace detail
//
// random_swap_result
//
template<typename Container, typename UniformRandomNumberGenerator>
inline SPROUT_CONSTEXPR sprout::tuples::tuple<
typename sprout::fit::result_of::algorithm<Container>::type,
typename std::decay<UniformRandomNumberGenerator>::type
>
random_swap_result(Container const& cont, UniformRandomNumberGenerator&& g) {
return sprout::fit::detail::random_swap_result_impl(
cont, sprout::forward<UniformRandomNumberGenerator>(g),
sprout::internal_begin_offset(cont)
);
}
} // namespace fit
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_FIT_RANDOM_SWAP_RESULT_HPP