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fix math functions

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This commit is contained in:
bolero-MURAKAMI 2013-05-06 00:22:08 +09:00
parent fccb16687b
commit 7794e56192
27 changed files with 342 additions and 102 deletions
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6
sprout/math/fabs.hpp
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@ -4,6 +4,7 @@
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/math/detail/config.hpp>
#include <sprout/math/isnan.hpp>
#include <sprout/math/copysign.hpp>
#include <sprout/type_traits/enabler_if.hpp>
@ -16,7 +17,10 @@ namespace sprout {
>
inline SPROUT_CONSTEXPR FloatType
fabs(FloatType x) {
return sprout::math::copysign(x, FloatType(0));
return sprout::math::isnan(x) ? std::numeric_limits<FloatType>::quiet_NaN()
: x == 0 ? FloatType(0)
: sprout::math::copysign(x, FloatType(0))
;
}
template<
typename IntType,