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fix math functions

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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
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41
sprout/math/erfc.hpp Normal file
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#ifndef SPROUT_MATH_ERFC_HPP
#define SPROUT_MATH_ERFC_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/math/detail/config.hpp>
#include <sprout/math/erf.hpp>
#include <sprout/type_traits/enabler_if.hpp>
namespace sprout {
namespace math {
namespace detail {
template<
typename FloatType,
typename sprout::enabler_if<std::is_floating_point<FloatType>::value>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR FloatType
erfc(FloatType x) {
return x == std::numeric_limits<FloatType>::infinity() ? FloatType(0)
: x == -std::numeric_limits<FloatType>::infinity() ? FloatType(2)
: FloatType(1) - sprout::math::erf(x)
;
}
template<
typename IntType,
typename sprout::enabler_if<std::is_integral<IntType>::value>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR double
erfc(IntType x) {
return sprout::math::detail::erfc(static_cast<double>(x));
}
} // namespace detail
using NS_SPROUT_MATH_DETAIL::erfc;
} // namespace math
using sprout::math::erfc;
} // namespace sprout
#endif // #ifndef SPROUT_MATH_ERFC_HPP