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fix: math functions (support for inferior C++14 standard)

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add C++14 constexpr modifying algorithms
This commit is contained in:
bolero-MURAKAMI 2013-10-25 12:29:16 +09:00
parent 58cff54e0d
commit c58c9cc0fc
106 changed files with 3465 additions and 2144 deletions
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74
sprout/math/fmod.hpp
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@ -71,49 +71,49 @@ namespace sprout {
fmod_impl(T x, T y) {
return sprout::math::detail::fmod_impl_1(x, sprout::math::fabs(y), sprout::math::fabs(x));
}
template<
typename FloatType,
typename sprout::enabler_if<std::is_floating_point<FloatType>::value>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR FloatType
fmod(FloatType x, FloatType y) {
return sprout::math::isnan(y)
? sprout::math::isnan(x)
? sprout::math::signbit(y) || sprout::math::signbit(x) ? -sprout::numeric_limits<FloatType>::quiet_NaN()
: sprout::numeric_limits<FloatType>::quiet_NaN()
: y
: sprout::math::isnan(x) ? x
: x == sprout::numeric_limits<FloatType>::infinity() || x == -sprout::numeric_limits<FloatType>::infinity() || y == 0
? -sprout::numeric_limits<FloatType>::quiet_NaN()
: x == 0 ? x
: y == sprout::numeric_limits<FloatType>::infinity() || y == -sprout::numeric_limits<FloatType>::infinity() ? x
: static_cast<FloatType>(sprout::math::detail::fmod_impl(
static_cast<typename sprout::math::detail::float_compute<FloatType>::type>(x),
static_cast<typename sprout::math::detail::float_compute<FloatType>::type>(y)
))
;
}
template<
typename ArithmeticType1,
typename ArithmeticType2,
typename sprout::enabler_if<
std::is_arithmetic<ArithmeticType1>::value && std::is_arithmetic<ArithmeticType2>::value
>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR typename sprout::float_promote<ArithmeticType1, ArithmeticType2>::type
fmod(ArithmeticType1 x, ArithmeticType2 y) {
typedef typename sprout::float_promote<ArithmeticType1, ArithmeticType2>::type type;
return sprout::math::detail::fmod(static_cast<type>(x), static_cast<type>(y));
}
} // namespace detail
//
// fmod
//
// issue:
// fmod(-NaN, -NaN) returns -NaN .
// # returns +NaN . ( same as fmod(+NaN, +NaN) )
//
using sprout::math::detail::fmod;
template<
typename FloatType,
typename sprout::enabler_if<std::is_floating_point<FloatType>::value>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR FloatType
fmod(FloatType x, FloatType y) {
return sprout::math::isnan(y)
? sprout::math::isnan(x)
? sprout::math::signbit(y) || sprout::math::signbit(x) ? -sprout::numeric_limits<FloatType>::quiet_NaN()
: sprout::numeric_limits<FloatType>::quiet_NaN()
: y
: sprout::math::isnan(x) ? x
: x == sprout::numeric_limits<FloatType>::infinity() || x == -sprout::numeric_limits<FloatType>::infinity() || y == 0
? -sprout::numeric_limits<FloatType>::quiet_NaN()
: x == 0 ? x
: y == sprout::numeric_limits<FloatType>::infinity() || y == -sprout::numeric_limits<FloatType>::infinity() ? x
: static_cast<FloatType>(sprout::math::detail::fmod_impl(
static_cast<typename sprout::math::detail::float_compute<FloatType>::type>(x),
static_cast<typename sprout::math::detail::float_compute<FloatType>::type>(y)
))
;
}
template<
typename ArithmeticType1,
typename ArithmeticType2,
typename sprout::enabler_if<
std::is_arithmetic<ArithmeticType1>::value && std::is_arithmetic<ArithmeticType2>::value
>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR typename sprout::float_promote<ArithmeticType1, ArithmeticType2>::type
fmod(ArithmeticType1 x, ArithmeticType2 y) {
typedef typename sprout::float_promote<ArithmeticType1, ArithmeticType2>::type type;
return sprout::math::fmod(static_cast<type>(x), static_cast<type>(y));
}
} // namespace math
using sprout::math::fmod;