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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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47
sprout/math/float_exponent.hpp
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@ -18,30 +18,29 @@
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
float_exponent(FloatType x) {
return sprout::math::isnan(x) ? 0
: x == 0 ? 0
: x == sprout::numeric_limits<FloatType>::infinity() || x == -sprout::numeric_limits<FloatType>::infinity() ? 0
: sprout::math::ilogb(x) + 1
;
}
template<
typename IntType,
typename sprout::enabler_if<std::is_integral<IntType>::value>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR int
float_exponent(IntType x) {
return sprout::math::detail::float_exponent(static_cast<double>(x));
}
} // namespace detail
using sprout::math::detail::float_exponent;
//
// float_exponent
//
template<
typename FloatType,
typename sprout::enabler_if<std::is_floating_point<FloatType>::value>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR int
float_exponent(FloatType x) {
return sprout::math::isnan(x) ? 0
: x == 0 ? 0
: x == sprout::numeric_limits<FloatType>::infinity() || x == -sprout::numeric_limits<FloatType>::infinity() ? 0
: sprout::math::ilogb(x) + 1
;
}
template<
typename IntType,
typename sprout::enabler_if<std::is_integral<IntType>::value>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR int
float_exponent(IntType x) {
return sprout::math::float_exponent(static_cast<double>(x));
}
} // namespace math
using sprout::math::float_exponent;