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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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4
sprout/math/log.hpp
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@ -9,6 +9,7 @@
#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/factorial.hpp>
#include <sprout/math/sqrt.hpp>
#include <sprout/type_traits/enabler_if.hpp>
@ -47,7 +48,8 @@ namespace sprout {
>
inline SPROUT_CONSTEXPR FloatType
log(FloatType x) {
return x == 0 ? -std::numeric_limits<FloatType>::infinity()
return sprout::math::isnan(x) ? x
: x == 0 ? -std::numeric_limits<FloatType>::infinity()
: x == std::numeric_limits<FloatType>::infinity() ? std::numeric_limits<FloatType>::infinity()
: x < 0 ? std::numeric_limits<FloatType>::quiet_NaN()
#if SPROUT_USE_BUILTIN_CMATH_FUNCTION