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Sprout/sprout/iterator/amplitude_spectrum_iterator.hpp
2013-02-01 20:21:01 +09:00

37 lines
1.2 KiB
C++

#ifndef SPROUT_ITERATOR_AMPLITUDE_SPECTRUM_ITERATOR_HPP
#define SPROUT_ITERATOR_AMPLITUDE_SPECTRUM_ITERATOR_HPP
#include <iterator>
#include <sprout/config.hpp>
#include <sprout/iterator/transform_iterator.hpp>
#include <sprout/numeric/dft/amplitude_spectrum_value.hpp>
namespace sprout {
//
// amplitude_value
//
template<typename T>
class amplitude_value {
public:
typedef typename T::value_type result_type;
typedef T argument_type;
public:
SPROUT_CONSTEXPR amplitude_value() {}
SPROUT_CONSTEXPR typename T::value_type operator()(T const& value) const {
return sprout::amplitude_spectrum_value(value);
}
};
//
// make_amplitude_spectrum_iterator
//
template<typename Iterator>
inline SPROUT_CONSTEXPR sprout::transform_iterator<sprout::amplitude_value<typename std::iterator_traits<Iterator>::value_type>, Iterator>
make_amplitude_spectrum_iterator(Iterator it) {
return sprout::transform_iterator<sprout::amplitude_value<typename std::iterator_traits<Iterator>::value_type>, Iterator>(
it, sprout::amplitude_value<typename std::iterator_traits<Iterator>::value_type>()
);
}
} // namespace sprout
#endif // #ifndef SPROUT_ITERATOR_AMPLITUDE_SPECTRUM_ITERATOR_HPP