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fix math functions

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This commit is contained in:
bolero-MURAKAMI 2013-05-05 00:06:30 +09:00
parent ffb876c930
commit fccb16687b
20 changed files with 209 additions and 68 deletions
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6
sprout/math/expm1.hpp
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@ -6,9 +6,10 @@
#include <sprout/config.hpp>
#include <sprout/math/detail/config.hpp>
#include <sprout/math/detail/float_compute.hpp>
#include <sprout/math/constants.hpp>
#include <sprout/math/isnan.hpp>
#include <sprout/math/copysign.hpp>
#include <sprout/math/exp.hpp>
#include <sprout/math/constants.hpp>
#include <sprout/type_traits/enabler_if.hpp>
namespace sprout {
@ -26,7 +27,8 @@ namespace sprout {
>
inline SPROUT_CONSTEXPR FloatType
expm1(FloatType x) {
return x == -std::numeric_limits<FloatType>::infinity() ? FloatType(-1)
return sprout::math::isnan(x) ? x
: x == -std::numeric_limits<FloatType>::infinity() ? FloatType(-1)
: x == std::numeric_limits<FloatType>::infinity() ? std::numeric_limits<FloatType>::infinity()
#if SPROUT_USE_BUILTIN_CMATH_FUNCTION
: std::expm1(x)