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fix math functions

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This commit is contained in:
bolero-MURAKAMI 2013-05-08 01:46:40 +09:00
parent 3498e9214f
commit 9247693c63
13 changed files with 159 additions and 67 deletions
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22
sprout/math/quotient.hpp
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@ -3,25 +3,17 @@
#include <limits>
#include <type_traits>
#include <stdexcept>
#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/signbit.hpp>
#include <sprout/math/iround.hpp>
#include <sprout/math/rem_quo.hpp>
#include <sprout/type_traits/enabler_if.hpp>
#include <sprout/type_traits/float_promote.hpp>
namespace sprout {
namespace math {
namespace detail {
template<typename R, typename T>
inline SPROUT_CONSTEXPR T
quotient_impl(T x, T y) {
return sprout::math::iround<R>(x / y);
}
template<
typename R = int,
typename FloatType,
@ -29,15 +21,13 @@ namespace sprout {
>
inline SPROUT_CONSTEXPR R
quotient(FloatType x, FloatType y) {
return sprout::math::isnan(y) || sprout::math::isnan(x) ? R(0)
: x == 0 && y != 0 ? R(0)
: x == std::numeric_limits<FloatType>::infinity() || x == -std::numeric_limits<FloatType>::infinity() || y == 0
return y == 0 ? R(0)
: sprout::math::isnan(y) || sprout::math::isnan(x) ? R(0)
: x == std::numeric_limits<FloatType>::infinity() || x == -std::numeric_limits<FloatType>::infinity()
? R(0)
: x == 0 ? R(0)
: y == std::numeric_limits<FloatType>::infinity() || y == -std::numeric_limits<FloatType>::infinity() ? R(0)
: static_cast<FloatType>(sprout::math::detail::quotient_impl<R>(
static_cast<typename sprout::math::detail::float_compute<FloatType>::type>(x),
static_cast<typename sprout::math::detail::float_compute<FloatType>::type>(y)
))
: sprout::math::rem_quo<R>(x, y).second
;
}
template<