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fix math functions

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This commit is contained in:
bolero-MURAKAMI 2013-04-29 10:56:46 +09:00
parent 2e2b6c96ab
commit ffb876c930
23 changed files with 85 additions and 37 deletions
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8
sprout/math/tan.hpp
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@ -6,6 +6,7 @@
#include <sprout/config.hpp>
#include <sprout/math/detail/config.hpp>
#include <sprout/math/detail/float_compute.hpp>
#include <sprout/math/isnan.hpp>
#include <sprout/math/cos.hpp>
#include <sprout/math/sin.hpp>
#include <sprout/type_traits/enabler_if.hpp>
@ -25,10 +26,11 @@ namespace sprout {
>
inline SPROUT_CONSTEXPR FloatType
tan(FloatType x) {
return x == std::numeric_limits<FloatType>::infinity() || x == -std::numeric_limits<FloatType>::infinity()
? std::numeric_limits<FloatType>::quiet_NaN()
return sprout::math::isnan(x) ? x
: x == std::numeric_limits<FloatType>::infinity() || x == -std::numeric_limits<FloatType>::infinity()
? -std::numeric_limits<FloatType>::quiet_NaN()
#if SPROUT_USE_BUILTIN_CMATH_FUNCTION
: std::sin(x)
: std::tan(x)
#else
: x == 0 ? x
: static_cast<FloatType>(sprout::math::detail::tan_impl(static_cast<typename sprout::math::detail::float_compute<FloatType>::type>(x)))