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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/float_sig_exp.hpp
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@ -1,9 +1,9 @@
#ifndef SPROUT_MATH_FLOAT_SIG_EXP_HPP
#define SPROUT_MATH_FLOAT_SIG_EXP_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/isnan.hpp>
@ -18,7 +18,7 @@ namespace sprout {
inline SPROUT_CONSTEXPR sprout::pair<T, int>
float_sig_exp_impl(T x, int exp) {
typedef sprout::pair<T, int> type;
return type(x / sprout::detail::pow_n(T(std::numeric_limits<T>::radix), exp), exp);
return type(x / sprout::detail::pow_n(T(sprout::numeric_limits<T>::radix), exp), exp);
}
template<
@ -29,8 +29,8 @@ namespace sprout {
float_sig_exp(FloatType x) {
typedef sprout::pair<FloatType, int> type;
return sprout::math::isnan(x) ? type(x, 0)
: x == std::numeric_limits<FloatType>::infinity() ? type(std::numeric_limits<FloatType>::infinity(), 0)
: x == -std::numeric_limits<FloatType>::infinity() ? type(-std::numeric_limits<FloatType>::infinity(), 0)
: x == sprout::numeric_limits<FloatType>::infinity() ? type(sprout::numeric_limits<FloatType>::infinity(), 0)
: x == -sprout::numeric_limits<FloatType>::infinity() ? type(-sprout::numeric_limits<FloatType>::infinity(), 0)
: x == 0 ? type(x, 0)
: sprout::math::detail::float_sig_exp_impl(x, sprout::math::ilogb(x) + 1)
;