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add sprout/math/comparison.hpp

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This commit is contained in:
bolero-MURAKAMI 2012-07-06 23:10:49 +09:00
parent d51bd06eda
commit 1c65d59971
20 changed files with 379 additions and 109 deletions
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3
sprout/math/floor.hpp
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@ -8,6 +8,7 @@
#include <sprout/config.hpp>
#include <sprout/math/detail/config.hpp>
#include <sprout/math/isinf.hpp>
#include <sprout/math/equal_to.hpp>
#include <sprout/type_traits/enabler_if.hpp>
namespace sprout {
@ -16,7 +17,7 @@ namespace sprout {
template<typename FloatType>
inline SPROUT_CONSTEXPR FloatType
floor_impl(FloatType x, FloatType x0) {
return x0 - x < std::numeric_limits<FloatType>::epsilon() ? x0
return sprout::math::equal_to(x, x0) ? x0
: x0 - 1
;
}