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add sprout::asin, acos, pow

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bolero-MURAKAMI 2012-05-04 23:23:39 +09:00
parent 8c23e809a4
commit 28f22ab73d
5 changed files with 225 additions and 0 deletions
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45
sprout/math/acos.hpp Normal file
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#ifndef SPROUT_MATH_ACOS_HPP
#define SPROUT_MATH_ACOS_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/math/asin.hpp>
#include <sprout/math/constants.hpp>
#include <sprout/utility/enabler_if.hpp>
#if SPROUT_USE_BUILTIN_CMATH_FUNCTION
# include <cmath>
#endif
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
acos(FloatType x) {
return sprout::math::half_pi<FloatType>() - sprout::math::detail::asin(x);
}
template<
typename IntType,
typename sprout::enabler_if<std::is_integral<IntType>::value>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR double
acos(IntType x) {
return sprout::math::detail::acos(static_cast<double>(x));
}
} // namespace detail
# if SPROUT_USE_BUILTIN_CMATH_FUNCTION
using std::acos;
# else
using sprout::math::detail::acos;
# endif
} // namespace math
using sprout::math::acos;
} // namespace sprout
#endif // #ifndef SPROUT_MATH_ACOS_HPP