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fix math functions

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This commit is contained in:
bolero-MURAKAMI 2013-02-14 18:02:43 +09:00
parent 5d809ef5c9
commit fa1d769bdf
76 changed files with 582 additions and 169 deletions
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6
sprout/math/cbrt.hpp
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@ -1,6 +1,7 @@
#ifndef SPROUT_MATH_CBRT_HPP
#define SPROUT_MATH_CBRT_HPP
#include <limits>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/math/detail/config.hpp>
@ -17,7 +18,10 @@ namespace sprout {
>
inline SPROUT_CONSTEXPR FloatType
cbrt(FloatType x) {
return x < 0 ? -sprout::math::pow(-x, sprout::math::third<FloatType>())
return x == 0 ? FloatType(0)
: x == std::numeric_limits<FloatType>::infinity() ? std::numeric_limits<FloatType>::infinity()
: x == -std::numeric_limits<FloatType>::infinity() ? -std::numeric_limits<FloatType>::infinity()
: x < 0 ? -sprout::math::pow(-x, sprout::math::third<FloatType>())
: sprout::math::pow(x, sprout::math::third<FloatType>())
;
}