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https://github.com/bolero-MURAKAMI/Sprout.git
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40 lines
1.3 KiB
C++
40 lines
1.3 KiB
C++
#ifndef SPROUT_ALGORITHM_FIT_COPY_N_HPP
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#define SPROUT_ALGORITHM_FIT_COPY_N_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/algorithm/fixed/copy_n.hpp>
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#include <sprout/algorithm/fit/result_of.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 InputIterator, typename Size, typename Result>
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inline SPROUT_CONSTEXPR typename sprout::fit::result_of::algorithm<Result>::type
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copy_n_impl(
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InputIterator first, Size n, 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_n(first, n, result)),
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offset,
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offset + sprout::fit_size(result, n)
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);
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}
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} // namespace detail
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//
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// copy_n
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//
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template<typename InputIterator, typename Size, typename Result>
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inline SPROUT_CONSTEXPR typename sprout::fit::result_of::algorithm<Result>::type
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copy_n(InputIterator first, Size n, Result const& result) {
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return sprout::fit::detail::copy_n_impl(first, n, result, sprout::internal_begin_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_N_HPP
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