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49 lines
1.8 KiB
C++
49 lines
1.8 KiB
C++
#ifndef SPROUT_NUMERIC_DFT_FIT_DFT_HPP
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#define SPROUT_NUMERIC_DFT_FIT_DFT_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/numeric/dft/fixed/dft.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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#include <sprout/pit/pit.hpp>
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#include HDR_ALGORITHM_MIN_MAX_SSCRISK_CEL_OR_SPROUT
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namespace sprout {
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namespace fit {
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namespace detail {
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template<typename ForwardIterator, typename Result>
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inline SPROUT_CONSTEXPR typename sprout::fit::result_of::algorithm<Result>::type
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dft_impl(
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ForwardIterator first, ForwardIterator 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::dft(first, last, result)),
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offset,
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offset + NS_SSCRISK_CEL_OR_SPROUT::min(sprout::distance(first, last), sprout::size(result))
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);
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}
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} // namespace detail
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//
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// dft
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//
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template<typename ForwardIterator, typename Result>
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inline SPROUT_CONSTEXPR typename sprout::fit::result_of::algorithm<Result>::type
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dft(ForwardIterator first, ForwardIterator last, Result const& result) {
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return sprout::fit::detail::dft_impl(first, last, result, sprout::internal_begin_offset(result));
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}
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template<typename Result, typename ForwardIterator>
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inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
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dft(ForwardIterator first, ForwardIterator last) {
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return sprout::fit::dft(first, last, sprout::pit<Result>());
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}
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} // namespace fit
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} // namespace sprout
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#endif // #ifndef SPROUT_NUMERIC_DFT_FIT_DFT_HPP
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