Sprout/sprout/algorithm/fit/random_swap.hpp
2014-01-08 16:48:12 +09:00

51 lines
1.9 KiB
C++

/*=============================================================================
Copyright (c) 2011-2014 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#ifndef SPROUT_ALGORITHM_FIT_RANDOM_SWAP_HPP
#define SPROUT_ALGORITHM_FIT_RANDOM_SWAP_HPP
#include <sprout/config.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/algorithm/fixed/random_swap.hpp>
#include <sprout/algorithm/fit/results.hpp>
#include <sprout/sub_array/sub_array.hpp>
#include <sprout/sub_array/sub.hpp>
namespace sprout {
namespace fit {
namespace detail {
template<typename Container, typename UniformRandomNumberGenerator>
inline SPROUT_CONSTEXPR typename sprout::fit::results::algorithm<Container>::type
random_swap_impl(
Container const& cont, UniformRandomNumberGenerator&& g,
typename sprout::container_traits<Container>::difference_type offset
)
{
return sprout::sub_copy(
sprout::get_internal(sprout::fixed::random_swap(cont, sprout::forward<UniformRandomNumberGenerator>(g))),
offset,
offset + sprout::size(cont)
);
}
} // namespace detail
//
// random_swap
//
template<typename Container, typename UniformRandomNumberGenerator>
inline SPROUT_CONSTEXPR typename sprout::fit::results::algorithm<Container>::type
random_swap(Container const& cont, UniformRandomNumberGenerator&& g) {
return sprout::fit::detail::random_swap_impl(
cont, sprout::forward<UniformRandomNumberGenerator>(g),
sprout::internal_begin_offset(cont)
);
}
} // namespace fit
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_FIT_RANDOM_SWAP_HPP