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workaround for no c++11 numeric_limits

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This commit is contained in:
bolero-MURAKAMI 2013-08-07 00:15:09 +09:00
parent ce16e24637
commit 7a1974742a
110 changed files with 727 additions and 436 deletions
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12
sprout/math/tgamma.hpp
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@ -2,9 +2,9 @@
#define SPROUT_MATH_TGAMMA_HPP
#include <cstddef>
#include <limits>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/limits.hpp>
#include <sprout/math/detail/config.hpp>
#include <sprout/math/detail/float_compute.hpp>
#include <sprout/math/isnan.hpp>
@ -71,7 +71,7 @@ namespace sprout {
template<typename T>
inline SPROUT_CONSTEXPR T
tgamma_impl_2_pos_rec(T x, T y, T t) {
return t == 0 ? std::numeric_limits<T>::infinity()
return t == 0 ? sprout::numeric_limits<T>::infinity()
: (x - T(1)) / y / t
;
}
@ -108,10 +108,10 @@ namespace sprout {
inline SPROUT_CONSTEXPR FloatType
tgamma(FloatType x) {
return sprout::math::isnan(x) ? x
: x == 0 ? sprout::math::copysign(std::numeric_limits<FloatType>::infinity(), x)
: x == -std::numeric_limits<FloatType>::infinity() ? -std::numeric_limits<FloatType>::quiet_NaN()
: x == std::numeric_limits<FloatType>::infinity() ? std::numeric_limits<FloatType>::infinity()
: x < 0 && sprout::math::is_integer(x) ? std::numeric_limits<FloatType>::quiet_NaN()
: x == 0 ? sprout::math::copysign(sprout::numeric_limits<FloatType>::infinity(), x)
: x == -sprout::numeric_limits<FloatType>::infinity() ? -sprout::numeric_limits<FloatType>::quiet_NaN()
: x == sprout::numeric_limits<FloatType>::infinity() ? sprout::numeric_limits<FloatType>::infinity()
: x < 0 && sprout::math::is_integer(x) ? sprout::numeric_limits<FloatType>::quiet_NaN()
#if SPROUT_USE_BUILTIN_CMATH_FUNCTION
: std::tgamma(x)
#else