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fix math functions

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This commit is contained in:
bolero-MURAKAMI 2013-05-06 00:22:08 +09:00
parent fccb16687b
commit 7794e56192
27 changed files with 342 additions and 102 deletions
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5
sprout/math/float_exponent.hpp
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@ -1,7 +1,6 @@
#ifndef SPROUT_MATH_FLOAT_EXPONENT_HPP
#define SPROUT_MATH_FLOAT_EXPONENT_HPP
#include <climits>
#include <limits>
#include <type_traits>
#include <sprout/config.hpp>
@ -19,9 +18,9 @@ namespace sprout {
>
inline SPROUT_CONSTEXPR int
float_exponent(FloatType x) {
return x == 0 ? 0
return sprout::math::isnan(x) ? 0
: x == 0 ? 0
: x == std::numeric_limits<FloatType>::infinity() || x == -std::numeric_limits<FloatType>::infinity() ? 0
: sprout::math::isnan(x) ? FP_ILOGBNAN
: sprout::math::ilogb(x) + 1
;
}