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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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14
sprout/math/cos.hpp
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@ -7,6 +7,7 @@
#include <sprout/config.hpp>
#include <sprout/detail/pow.hpp>
#include <sprout/math/detail/config.hpp>
#include <sprout/math/detail/float_compute.hpp>
#include <sprout/math/factorial.hpp>
#include <sprout/math/constants.hpp>
#include <sprout/math/fmod.hpp>
@ -27,10 +28,10 @@ namespace sprout {
template<typename FloatType>
inline SPROUT_CONSTEXPR FloatType
cos_impl(FloatType x) {
typedef double type;
typedef typename sprout::math::detail::float_compute<FloatType>::type type;
return static_cast<FloatType>(
type(1) + sprout::math::detail::cos_impl_1(
static_cast<type>(x) * static_cast<type>(x),
sprout::detail::pow2(static_cast<type>(x)),
1, sprout::math::factorial_limit<type>() / 2 + 1
)
);
@ -42,11 +43,10 @@ namespace sprout {
>
inline SPROUT_CONSTEXPR FloatType
cos(FloatType x) {
typedef double type;
return x == std::numeric_limits<FloatType>::infinity()
|| x == -std::numeric_limits<FloatType>::infinity()
? std::numeric_limits<FloatType>::quiet_NaN()
: sprout::math::detail::cos_impl(sprout::math::fmod(x, 2 * sprout::math::pi<FloatType>()))
return x == 0 ? FloatType(1)
: x == std::numeric_limits<FloatType>::infinity() || x == -std::numeric_limits<FloatType>::infinity()
? std::numeric_limits<FloatType>::quiet_NaN()
: sprout::math::detail::cos_impl(sprout::math::fmod(x, sprout::math::two_pi<FloatType>()))
;
}