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51 lines
1.9 KiB
C++
51 lines
1.9 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2019 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#ifndef SPROUT_ALGORITHM_FIT_SHUFFLE_HPP
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#define SPROUT_ALGORITHM_FIT_SHUFFLE_HPP
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#include <sprout/config.hpp>
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#include <sprout/container/traits.hpp>
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#include <sprout/container/functions.hpp>
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#include <sprout/utility/forward.hpp>
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#include <sprout/algorithm/fixed/shuffle.hpp>
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#include <sprout/algorithm/fit/results.hpp>
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#include <sprout/sub_array/sub_array.hpp>
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#include <sprout/sub_array/sub.hpp>
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namespace sprout {
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namespace fit {
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namespace detail {
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template<typename Container, typename UniformRandomNumberGenerator>
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inline SPROUT_CONSTEXPR typename sprout::fit::results::algorithm<Container>::type
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shuffle_impl(
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Container const& cont, UniformRandomNumberGenerator&& g,
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typename sprout::container_traits<Container>::difference_type offset
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)
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{
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return sprout::sub_copy(
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sprout::get_internal(sprout::fixed::shuffle(cont, SPROUT_FORWARD(UniformRandomNumberGenerator, g))),
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offset,
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offset + sprout::size(cont)
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);
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}
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} // namespace detail
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//
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// shuffle
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//
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template<typename Container, typename UniformRandomNumberGenerator>
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inline SPROUT_CONSTEXPR typename sprout::fit::results::algorithm<Container>::type
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shuffle(Container const& cont, UniformRandomNumberGenerator&& g) {
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return sprout::fit::detail::shuffle_impl(
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cont, SPROUT_FORWARD(UniformRandomNumberGenerator, g),
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sprout::internal_begin_offset(cont)
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);
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}
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} // namespace fit
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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_FIT_SHUFFLE_HPP
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