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48 lines
1.9 KiB
C++
48 lines
1.9 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2013 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_COPY_BACKWARD_HPP
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#define SPROUT_ALGORITHM_FIT_COPY_BACKWARD_HPP
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#include <sprout/config.hpp>
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#include <sprout/iterator/distance.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/algorithm/fixed/copy_backward.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 BidirectionalIterator, typename Result>
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inline SPROUT_CONSTEXPR typename sprout::fit::results::algorithm<Result>::type
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copy_backward_impl(
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BidirectionalIterator first, BidirectionalIterator last, Result const& result,
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typename sprout::container_traits<Result>::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::copy_backward(first, last, result)),
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offset - sprout::fit_size(result, sprout::distance(first, last)),
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offset
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);
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}
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} // namespace detail
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//
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// copy_backward
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//
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template<typename BidirectionalIterator, typename Result>
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inline SPROUT_CONSTEXPR typename sprout::fit::results::algorithm<Result>::type
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copy_backward(BidirectionalIterator first, BidirectionalIterator last, Result const& result) {
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return sprout::fit::detail::copy_backward_impl(first, last, result, sprout::internal_end_offset(result));
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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_COPY_BACKWARD_HPP
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