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Sprout/sprout/valarray/power.hpp
bolero-MURAKAMI 1b8c051008 add valarray
2016-04-03 13:12:14 +09:00

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/*=============================================================================
Copyright (c) 2011-2016 Bolero MURAKAMI
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_VALARRAY_POWER_HPP
#define SPROUT_VALARRAY_POWER_HPP
#include <utility>
#include <sprout/config.hpp>
#include <sprout/workaround/std/cstddef.hpp>
#include <sprout/valarray/valarray.hpp>
#include <sprout/algorithm/fixed/transform.hpp>
#include <sprout/math/cbrt.hpp>
#include <sprout/math/abs.hpp>
#include <sprout/math/hypot.hpp>
#include <sprout/math/pow.hpp>
#include <sprout/math/sqrt.hpp>
#include <sprout/math/log_a.hpp>
#include <sprout/cstdlib/abs.hpp>
#include <sprout/utility/forward.hpp>
namespace sprout_math_detail {
using sprout::math::cbrt;
using sprout::math::abs;
using sprout::math::hypot;
using sprout::math::pow;
using sprout::math::sqrt;
using sprout::math::log_a;
using sprout::abs;
template<typename T>
inline SPROUT_CONSTEXPR decltype(cbrt(std::declval<T>()))
call_cbrt(T&& x)
SPROUT_NOEXCEPT_IF_EXPR(cbrt(std::declval<T>()))
{
return cbrt(SPROUT_FORWARD(T, x));
}
template<typename T>
inline SPROUT_CONSTEXPR decltype(abs(std::declval<T>()))
call_abs(T&& x)
SPROUT_NOEXCEPT_IF_EXPR(abs(std::declval<T>()))
{
return abs(SPROUT_FORWARD(T, x));
}
template<typename T, typename U>
inline SPROUT_CONSTEXPR decltype(hypot(std::declval<T>(), std::declval<U>()))
call_hypot(T&& x, U&& y)
SPROUT_NOEXCEPT_IF_EXPR(hypot(std::declval<T>(), std::declval<U>()))
{
return hypot(SPROUT_FORWARD(T, x), SPROUT_FORWARD(U, y));
}
template<typename T, typename U>
inline SPROUT_CONSTEXPR decltype(pow(std::declval<T>(), std::declval<U>()))
call_pow(T&& x, U&& y)
SPROUT_NOEXCEPT_IF_EXPR(pow(std::declval<T>(), std::declval<U>()))
{
return pow(SPROUT_FORWARD(T, x), SPROUT_FORWARD(U, y));
}
template<typename T>
inline SPROUT_CONSTEXPR decltype(sqrt(std::declval<T>()))
call_sqrt(T&& x)
SPROUT_NOEXCEPT_IF_EXPR(sqrt(std::declval<T>()))
{
return sqrt(SPROUT_FORWARD(T, x));
}
template<typename T, typename U>
inline SPROUT_CONSTEXPR decltype(log_a(std::declval<T>(), std::declval<U>()))
call_log_a(T&& x, U&& y)
SPROUT_NOEXCEPT_IF_EXPR(log_a(std::declval<T>(), std::declval<U>()))
{
return log_a(SPROUT_FORWARD(T, x), SPROUT_FORWARD(U, y));
}
} // namespace sprout
namespace sprout {
namespace detail {
struct cbrt_f
: public sprout::transparent<>
{
public:
template<typename T>
SPROUT_CONSTEXPR decltype(sprout_math_detail::call_cbrt(std::declval<T>()))
operator()(T&& x)
SPROUT_NOEXCEPT_IF_EXPR(sprout_math_detail::call_cbrt(std::declval<T>()))
{
return sprout_math_detail::call_cbrt(SPROUT_FORWARD(T, x));
}
};
struct abs_f
: public sprout::transparent<>
{
public:
template<typename T>
SPROUT_CONSTEXPR decltype(sprout_math_detail::call_abs(std::declval<T>()))
operator()(T&& x)
SPROUT_NOEXCEPT_IF_EXPR(sprout_math_detail::call_abs(std::declval<T>()))
{
return sprout_math_detail::call_abs(SPROUT_FORWARD(T, x));
}
};
struct hypot_f
: public sprout::transparent<>
{
public:
template<typename T, typename U>
SPROUT_CONSTEXPR decltype(sprout_math_detail::call_hypot(std::declval<T>(), std::declval<U>()))
operator()(T&& x, U&& y)
SPROUT_NOEXCEPT_IF_EXPR(sprout_math_detail::call_hypot(std::declval<T>(), std::declval<U>()))
{
return sprout_math_detail::call_hypot(SPROUT_FORWARD(T, x), SPROUT_FORWARD(U, y));
}
};
struct pow_f
: public sprout::transparent<>
{
public:
template<typename T, typename U>
SPROUT_CONSTEXPR decltype(sprout_math_detail::call_pow(std::declval<T>(), std::declval<U>()))
operator()(T&& x, U&& y)
SPROUT_NOEXCEPT_IF_EXPR(sprout_math_detail::call_pow(std::declval<T>(), std::declval<U>()))
{
return sprout_math_detail::call_pow(SPROUT_FORWARD(T, x), SPROUT_FORWARD(U, y));
}
};
struct sqrt_f
: public sprout::transparent<>
{
public:
template<typename T>
SPROUT_CONSTEXPR decltype(sprout_math_detail::call_sqrt(std::declval<T>()))
operator()(T&& x)
SPROUT_NOEXCEPT_IF_EXPR(sprout_math_detail::call_sqrt(std::declval<T>()))
{
return sprout_math_detail::call_sqrt(SPROUT_FORWARD(T, x));
}
};
struct log_a_f
: public sprout::transparent<>
{
public:
template<typename T, typename U>
SPROUT_CONSTEXPR decltype(sprout_math_detail::call_log_a(std::declval<T>(), std::declval<U>()))
operator()(T&& x, U&& y)
SPROUT_NOEXCEPT_IF_EXPR(sprout_math_detail::call_log_a(std::declval<T>(), std::declval<U>()))
{
return sprout_math_detail::call_log_a(SPROUT_FORWARD(T, x), SPROUT_FORWARD(U, y));
}
};
} // namespace detail
//
// cbrt
//
template<typename T, std::size_t N>
inline SPROUT_CONSTEXPR sprout::valarray<T, N>
cbrt(sprout::valarray<T, N> const& x) {
return sprout::fixed::transform(x.begin(), x.end(), x, sprout::detail::cbrt_f());
}
//
// abs
//
template<typename T, std::size_t N>
inline SPROUT_CONSTEXPR sprout::valarray<T, N>
abs(sprout::valarray<T, N> const& x) {
return sprout::fixed::transform(x.begin(), x.end(), x, sprout::detail::abs_f());
}
//
// hypot
//
template<typename T, std::size_t N>
inline SPROUT_CONSTEXPR sprout::valarray<T, N>
hypot(sprout::valarray<T, N> const& x, sprout::valarray<T, N> const& y) {
return sprout::fixed::transform(x.begin(), x.end(), y.end(), x, sprout::detail::hypot_f());
}
template<typename T, std::size_t N>
inline SPROUT_CONSTEXPR sprout::valarray<T, N>
hypot(sprout::valarray<T, N> const& x, T const& y) {
return sprout::fixed::transform(x.begin(), x.end(), x, sprout::bind2nd(sprout::detail::hypot_f(), y));
}
template<typename T, std::size_t N>
inline SPROUT_CONSTEXPR sprout::valarray<T, N>
hypot(T const& x, sprout::valarray<T, N> const& y) {
return sprout::fixed::transform(y.begin(), y.end(), y, sprout::bind1st(sprout::detail::hypot_f(), x));
}
//
// pow
//
template<typename T, std::size_t N>
inline SPROUT_CONSTEXPR sprout::valarray<T, N>
pow(sprout::valarray<T, N> const& x, sprout::valarray<T, N> const& y) {
return sprout::fixed::transform(x.begin(), x.end(), y.end(), x, sprout::detail::pow_f());
}
template<typename T, std::size_t N>
inline SPROUT_CONSTEXPR sprout::valarray<T, N>
pow(sprout::valarray<T, N> const& x, T const& y) {
return sprout::fixed::transform(x.begin(), x.end(), x, sprout::bind2nd(sprout::detail::pow_f(), y));
}
template<typename T, std::size_t N>
inline SPROUT_CONSTEXPR sprout::valarray<T, N>
pow(T const& x, sprout::valarray<T, N> const& y) {
return sprout::fixed::transform(y.begin(), y.end(), y, sprout::bind1st(sprout::detail::pow_f(), x));
}
//
// sqrt
//
template<typename T, std::size_t N>
inline SPROUT_CONSTEXPR sprout::valarray<T, N>
sqrt(sprout::valarray<T, N> const& x) {
return sprout::fixed::transform(x.begin(), x.end(), x, sprout::detail::sqrt_f());
}
//
// log_a
//
template<typename T, std::size_t N>
inline SPROUT_CONSTEXPR sprout::valarray<T, N>
log_a(sprout::valarray<T, N> const& x, sprout::valarray<T, N> const& y) {
return sprout::fixed::transform(x.begin(), x.end(), y.end(), x, sprout::detail::log_a_f());
}
template<typename T, std::size_t N>
inline SPROUT_CONSTEXPR sprout::valarray<T, N>
log_a(sprout::valarray<T, N> const& x, T const& y) {
return sprout::fixed::transform(x.begin(), x.end(), x, sprout::bind2nd(sprout::detail::log_a_f(), y));
}
template<typename T, std::size_t N>
inline SPROUT_CONSTEXPR sprout::valarray<T, N>
log_a(T const& x, sprout::valarray<T, N> const& y) {
return sprout::fixed::transform(y.begin(), y.end(), y, sprout::bind1st(sprout::detail::log_a_f(), x));
}
} // namespace sprout
#endif // #ifndef SPROUT_VALARRAY_POWER_HPP