King_DuckZ/Sprout
1
0
Fork 0
mirror of https://github.com/bolero-MURAKAMI/Sprout synced 2025-08-03 12:49:50 +00:00
Code Issues Releases Wiki Activity

fix math functions

Browse source
This commit is contained in:
bolero-MURAKAMI 2013-02-14 18:02:43 +09:00
parent 5d809ef5c9
commit fa1d769bdf
76 changed files with 582 additions and 169 deletions
Download patch file Download diff file Expand all files Collapse all files

12
sprout/math/logb2.hpp
View file

@ -10,6 +10,7 @@
# include <sprout/math/logb.hpp>
#else
# include <cstdint>
# include <limits>
# include <sprout/detail/pow.hpp>
# include <sprout/math/log_a.hpp>
# include <sprout/math/trunc.hpp>
@ -113,12 +114,11 @@ namespace sprout {
>
inline SPROUT_CONSTEXPR FloatType
logb2(FloatType x) {
return x < 0 ? sprout::math::detail::logb2_impl(
-x, sprout::math::trunc(sprout::math::log_a(FloatType(2), -x))
)
: sprout::math::detail::logb2_impl(
x, sprout::math::trunc(sprout::math::log_a(FloatType(2), x))
)
return x == 0 ? -std::numeric_limits<FloatType>::infinity()
: x == std::numeric_limits<FloatType>::infinity() || x == -std::numeric_limits<FloatType>::infinity()
? std::numeric_limits<FloatType>::infinity()
: x < 0 ? sprout::math::detail::logb2_impl(-x, sprout::math::trunc(sprout::math::log_a(FloatType(2), -x)))
: sprout::math::detail::logb2_impl(x, sprout::math::trunc(sprout::math::log_a(FloatType(2), x)))
;
}