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fix: math functions (support for inferior C++14 standard)

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add C++14 constexpr modifying algorithms
This commit is contained in:
bolero-MURAKAMI 2013-10-25 12:29:16 +09:00
parent 58cff54e0d
commit c58c9cc0fc
106 changed files with 3465 additions and 2144 deletions
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38
sprout/math/isnan.hpp
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@ -16,17 +16,39 @@
namespace sprout {
namespace math {
namespace detail {
template<
typename FloatType,
typename sprout::enabler_if<std::is_floating_point<FloatType>::value>::type = sprout::enabler
>
#if SPROUT_USE_BUILTIN_CMATH_FUNCTION
template<typename FloatType>
inline SPROUT_CONSTEXPR bool
isnan(FloatType x) {
return !(x == x);
builtin_isnan(FloatType x) {
return __builtin_isnan(x);
}
#endif
} // namespace detail
using NS_SPROUT_MATH_DETAIL::isnan;
//
// isnan
//
template<
typename FloatType,
typename sprout::enabler_if<std::is_floating_point<FloatType>::value>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR bool
isnan(FloatType x) {
return
#if SPROUT_USE_BUILTIN_CMATH_FUNCTION
sprout::math::detail::builtin_isnan(x)
#else
!(x == x)
#endif
;
}
template<
typename IntType,
typename sprout::enabler_if<std::is_integral<IntType>::value>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR bool
isnan(IntType x) {
return false;
}
} // namespace math
using sprout::math::isnan;