2014-07-19 11:03:13 +00:00
|
|
|
/*=============================================================================
|
2017-07-29 05:20:01 +00:00
|
|
|
Copyright (c) 2011-2017 Bolero MURAKAMI
|
2014-07-19 11:03:13 +00:00
|
|
|
https://github.com/bolero-MURAKAMI/Sprout
|
|
|
|
|
|
|
|
|
|
Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
|
|
|
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
|
|
|
=============================================================================*/
|
|
|
|
|
#ifndef SPROUT_COMPLEX_PERP_HPP
|
|
|
|
|
#define SPROUT_COMPLEX_PERP_HPP
|
|
|
|
|
|
|
|
|
|
#include <type_traits>
|
|
|
|
|
#include <sprout/config.hpp>
|
|
|
|
|
#include <sprout/complex/complex.hpp>
|
|
|
|
|
#include <sprout/type_traits/float_promote.hpp>
|
|
|
|
|
#include <sprout/type_traits/enabler_if.hpp>
|
|
|
|
|
|
|
|
|
|
namespace sprout {
|
|
|
|
|
//
|
|
|
|
|
// perp
|
|
|
|
|
//
|
|
|
|
|
template<typename T>
|
|
|
|
|
inline SPROUT_CONSTEXPR sprout::complex<T>
|
|
|
|
|
perp(sprout::complex<T> const& x) {
|
|
|
|
|
return sprout::complex<T>(-x.imag(), x.real());
|
|
|
|
|
}
|
|
|
|
|
template<
|
|
|
|
|
typename ArithmeticType,
|
|
|
|
|
typename sprout::enabler_if<std::is_arithmetic<ArithmeticType>::value>::type = sprout::enabler
|
|
|
|
|
>
|
|
|
|
|
inline SPROUT_CONSTEXPR typename sprout::complex_promote<ArithmeticType>::type
|
|
|
|
|
perp(ArithmeticType x) {
|
|
|
|
|
typedef typename sprout::complex_promote<ArithmeticType>::type type;
|
|
|
|
|
typedef typename type::value_type value_type;
|
|
|
|
|
return type(-value_type(0), value_type(x));
|
|
|
|
|
}
|
|
|
|
|
} // namespace sprout
|
|
|
|
|
|
|
|
|
|
#endif // #ifndef SPROUT_COMPLEX_PERP_HPP
|
