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add compost dft, spectrum, etc

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bolero-MURAKAMI 2012-12-03 21:48:50 +09:00
parent 6b08a81d3e
commit 24d2a229f3
45 changed files with 1490 additions and 61 deletions
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sprout/compost/utility/equal_temperament.hpp Normal file
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#ifndef SPROUT_COMPOST_UTILITY_EQUAL_TEMPERAMENT_HPP
#define SPROUT_COMPOST_UTILITY_EQUAL_TEMPERAMENT_HPP
#include <sprout/config.hpp>
#include <sprout/math/pow.hpp>
#include <sprout/type_traits/float_promote.hpp>
namespace sprout {
namespace compost {
//
// equal_temperament_value
//
template<typename ArithmeticType1, typename ArithmeticType2>
SPROUT_CONSTEXPR typename sprout::float_promote<ArithmeticType1, ArithmeticType2>::type
equal_temperament_value(ArithmeticType1 i, ArithmeticType2 div) {
typedef typename sprout::float_promote<ArithmeticType1, ArithmeticType2>::type type;
using sprout::pow;
return pow(type(2), type(i) / type(div));
}
template<typename ArithmeticType>
SPROUT_CONSTEXPR typename sprout::float_promote<ArithmeticType, int>::type
equal_temperament_value(ArithmeticType i) {
return sprout::compost::equal_temperament_value(i, 12);
}
} // namespace compost
} // namespace sprout
#endif // #ifndef SPROUT_COMPOST_UTILITY_EQUAL_TEMPERAMENT_HPP