mirror of
https://github.com/bolero-MURAKAMI/Sprout
synced 2024-11-12 21:09:01 +00:00
41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
#ifndef SPROUT_MATH_FPCLASSIFY_HPP
|
|
#define SPROUT_MATH_FPCLASSIFY_HPP
|
|
|
|
#include <cmath>
|
|
#include <type_traits>
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/utility/enabler_if.hpp>
|
|
#include <sprout/math/isnan.hpp>
|
|
#include <sprout/math/isinf.hpp>
|
|
#include <sprout/math/iszero.hpp>
|
|
#include <sprout/math/issubnormal.hpp>
|
|
|
|
namespace sprout {
|
|
namespace math {
|
|
namespace detail {
|
|
template<
|
|
typename FloatType,
|
|
typename sprout::enabler_if<std::is_floating_point<FloatType>::value>::type = sprout::enabler
|
|
>
|
|
inline SPROUT_CONSTEXPR int
|
|
fpclassify(FloatType x) {
|
|
return sprout::math::isnan(x) ? FP_NAN
|
|
: sprout::math::isinf(x) ? FP_INFINITE
|
|
: sprout::math::iszero(x) ? FP_ZERO
|
|
: sprout::math::detail::issubnormal_or_zero(x) ? FP_SUBNORMAL
|
|
: FP_NORMAL
|
|
;
|
|
}
|
|
} // namespace detail
|
|
|
|
# if SPROUT_USE_BUILTIN_CMATH_FUNCTION
|
|
using std::fpclassify;
|
|
# else
|
|
using sprout::math::detail::fpclassify;
|
|
# endif
|
|
} // namespace math
|
|
|
|
using sprout::math::fpclassify;
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_MATH_FPCLASSIFY_HPP
|