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workaround for no c++11 numeric_limits

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This commit is contained in:
bolero-MURAKAMI 2013-08-07 00:15:09 +09:00
parent ce16e24637
commit 7a1974742a
110 changed files with 727 additions and 436 deletions
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8
sprout/math/scalbn.hpp
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@ -1,9 +1,9 @@
#ifndef SPROUT_MATH_SCALBN_HPP
#define SPROUT_MATH_SCALBN_HPP
#include <limits>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/limits.hpp>
#include <sprout/detail/pow.hpp>
#include <sprout/math/detail/config.hpp>
#include <sprout/math/detail/float_compute.hpp>
@ -16,7 +16,7 @@ namespace sprout {
template<typename FloatType, typename T>
inline SPROUT_CONSTEXPR T
scalbn_impl(T x, int exp) {
return x * sprout::detail::pow_n(T(std::numeric_limits<FloatType>::radix), exp);
return x * sprout::detail::pow_n(T(sprout::numeric_limits<FloatType>::radix), exp);
}
template<
@ -26,8 +26,8 @@ namespace sprout {
inline SPROUT_CONSTEXPR FloatType
scalbn(FloatType x, int exp) {
return sprout::math::isnan(x) ? x
: x == std::numeric_limits<FloatType>::infinity() ? std::numeric_limits<FloatType>::infinity()
: x == -std::numeric_limits<FloatType>::infinity() ? -std::numeric_limits<FloatType>::infinity()
: x == sprout::numeric_limits<FloatType>::infinity() ? sprout::numeric_limits<FloatType>::infinity()
: x == -sprout::numeric_limits<FloatType>::infinity() ? -sprout::numeric_limits<FloatType>::infinity()
: exp == 0 ? x
: x == 0 ? x
: static_cast<FloatType>(sprout::math::detail::scalbn_impl<FloatType>(static_cast<typename sprout::math::detail::float_compute<FloatType>::type>(x), exp))