Sprout/sprout/numeric/dft/fixed/amplitude_spectrum.hpp
2012-12-03 21:48:50 +09:00

62 lines
2.4 KiB
C++

#ifndef SPROUT_NUMERIC_DFT_FIXED_AMPLITUDE_SPECTRUM_HPP
#define SPROUT_NUMERIC_DFT_FIXED_AMPLITUDE_SPECTRUM_HPP
#include <sprout/config.hpp>
#include <sprout/index_tuple.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/iterator/operation.hpp>
#include <sprout/algorithm/fixed/result_of.hpp>
#include <sprout/numeric/dft/amplitude_spectrum_value.hpp>
#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT
namespace sprout {
namespace fixed {
namespace detail {
template<typename InputIterator, typename Result, sprout::index_t... Indexes>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
amplitude_spectrum_impl(
InputIterator first, InputIterator last, Result const& result,
sprout::index_tuple<Indexes...>,
typename sprout::container_traits<Result>::difference_type offset,
typename sprout::container_traits<Result>::size_type size,
typename sprout::container_traits<Result>::size_type input_size
)
{
return sprout::remake<Result>(
result,
size,
(Indexes >= offset && Indexes < offset + size && Indexes < offset + input_size
? sprout::amplitude_spectrum_value(*sprout::next(first, Indexes))
: *sprout::next(sprout::internal_begin(result), Indexes)
)...
);
}
template<typename InputIterator, typename Result>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
amplitude_spectrum(InputIterator first, InputIterator last, Result const& result) {
return sprout::fixed::detail::amplitude_spectrum_impl(
first,
last,
result,
sprout::index_range<0, sprout::container_traits<Result>::static_size>::make(),
sprout::internal_begin_offset(result),
sprout::size(result),
NS_SSCRISK_CEL_OR_SPROUT::distance(first, last)
);
}
} // namespace detail
//
// amplitude_spectrum
//
template<typename InputIterator, typename Result>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
amplitude_spectrum(InputIterator first, InputIterator last, Result const& result) {
return sprout::fixed::detail::amplitude_spectrum(first, last, result);
}
} // namespace fixed
using sprout::fixed::amplitude_spectrum;
} // namespace sprout
#endif // #ifndef SPROUT_NUMERIC_DFT_FIXED_AMPLITUDE_SPECTRUM_HPP