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Code Issues Releases Wiki Activity

fix math: rounding function,etc...

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This commit is contained in:
bolero-MURAKAMI 2013-02-10 11:54:54 +09:00
parent 53b99b25f8
commit 434aa8d3c5
22 changed files with 812 additions and 74 deletions
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12
sprout/functional/hash/detail/hash_float.hpp
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@ -6,8 +6,8 @@
#include <sprout/config.hpp>
#include <sprout/functional/hash/hash_fwd.hpp>
#include <sprout/math/fpclassify.hpp>
#include <sprout/math/scalbn.hpp>
#include <sprout/math/float_pair.hpp>
#include <sprout/math/ldexp.hpp>
#include <sprout/math/float2_sig_exp.hpp>
#include <sprout/detail/integer/static_log2.hpp>
namespace sprout {
@ -21,7 +21,7 @@ namespace sprout {
inline SPROUT_CONSTEXPR std::size_t
float_hash_value_impl_4(T v, int exp, std::size_t seed, std::size_t length, std::size_t i = 0) {
return i != length ? sprout::detail::float_hash_value_impl_4(
sprout::math::scalbn(v - static_cast<T>(static_cast<std::size_t>(v)), std::numeric_limits<std::size_t>::digits),
sprout::math::ldexp(v - static_cast<T>(static_cast<std::size_t>(v)), std::numeric_limits<std::size_t>::digits),
exp, sprout::detail::hash_float_combine(seed, static_cast<std::size_t>(v)),
length, i + 1
)
@ -32,7 +32,7 @@ namespace sprout {
inline SPROUT_CONSTEXPR std::size_t
float_hash_value_impl_3(T v, int exp) {
return sprout::detail::float_hash_value_impl_4(
sprout::math::scalbn(v - static_cast<T>(static_cast<std::size_t>(v)), std::numeric_limits<std::size_t>::digits),
sprout::math::ldexp(v - static_cast<T>(static_cast<std::size_t>(v)), std::numeric_limits<std::size_t>::digits),
exp, static_cast<std::size_t>(v),
(std::numeric_limits<T>::digits * sprout::detail::static_log2<std::numeric_limits<T>::radix>::value + std::numeric_limits<std::size_t>::digits - 1)
/ std::numeric_limits<std::size_t>::digits
@ -41,7 +41,7 @@ namespace sprout {
template<typename T>
inline SPROUT_CONSTEXPR std::size_t
float_hash_value_impl_2(T v, int exp) {
return sprout::detail::float_hash_value_impl_3(sprout::math::scalbn(v, std::numeric_limits<std::size_t>::digits), exp);
return sprout::detail::float_hash_value_impl_3(sprout::math::ldexp(v, std::numeric_limits<std::size_t>::digits), exp);
}
template<typename T, typename P>
inline SPROUT_CONSTEXPR std::size_t
@ -55,7 +55,7 @@ namespace sprout {
template<typename T>
inline SPROUT_CONSTEXPR std::size_t
float_hash_value_impl(T v) {
return sprout::detail::float_hash_value_impl_1<T>(sprout::math::float_pair(v));
return sprout::detail::float_hash_value_impl_1<T>(sprout::math::float2_sig_exp(v));
}
template<typename T>