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fix math functions

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bolero-MURAKAMI 2013-02-14 18:02:43 +09:00
parent 5d809ef5c9
commit fa1d769bdf
76 changed files with 582 additions and 169 deletions
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9
sprout/math/float2_sig_exp.hpp
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@ -1,6 +1,7 @@
#ifndef SPROUT_MATH_FLOAT2_SIG_EXP_HPP
#define SPROUT_MATH_FLOAT2_SIG_EXP_HPP
#include <limits>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/math/detail/config.hpp>
@ -15,7 +16,13 @@ namespace sprout {
template<typename T>
inline SPROUT_CONSTEXPR sprout::pair<T, int>
float2_sig_exp_impl(T x, int exp) {
return sprout::pair<T, int>(x / sprout::detail::pow_n(T(2), exp), exp);
typedef sprout::pair<T, int> type;
return x == 0 ? type(T(0), exp)
: x == std::numeric_limits<T>::infinity() ? type(std::numeric_limits<T>::infinity(), exp)
: x == -std::numeric_limits<T>::infinity() ? type(-std::numeric_limits<T>::infinity(), exp)
: x == std::numeric_limits<T>::quiet_NaN() ? type(std::numeric_limits<T>::quiet_NaN(), exp)
: type(x / sprout::detail::pow_n(T(2), exp), exp)
;
}
template<