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

add sprout::math::float_promote

Browse source
This commit is contained in:
bolero-MURAKAMI 2012-05-05 17:35:33 +09:00
parent 2fb6cea457
commit feba220da4
3 changed files with 61 additions and 82 deletions
Download patch file Download diff file Expand all files Collapse all files

44
sprout/math/atan2.hpp
View file

@ -5,6 +5,7 @@
#include <sprout/config.hpp>
#include <sprout/math/atan.hpp>
#include <sprout/math/constants.hpp>
#include <sprout/math/float_promote.hpp>
#include <sprout/utility/enabler_if.hpp>
#if SPROUT_USE_BUILTIN_CMATH_FUNCTION
# include <cmath>
@ -12,45 +13,6 @@
namespace sprout {
namespace math {
namespace detail {
template<typename Y, typename X, typename Enable = void>
struct atan2_promoted {};
template<typename Y, typename X>
struct atan2_promoted<
Y,
X,
typename std::enable_if<
std::is_arithmetic<Y>::value && std::is_arithmetic<X>::value
&& (std::is_same<Y, long double>::value || std::is_same<X, long double>::value)
>::type
> {
public:
typedef long double type;
};
template<typename Y, typename X>
struct atan2_promoted<
Y,
X,
typename std::enable_if<
std::is_arithmetic<Y>::value && std::is_arithmetic<X>::value
&& !(std::is_same<Y, long double>::value || std::is_same<X, long double>::value)
>::type
> {
public:
typedef double type;
};
} // namespace detail
//
// atan2_promoted
//
template<typename Y, typename X>
struct atan2_promoted
: public sprout::math::detail::atan2_promoted<
typename std::remove_cv<Y>::type,
typename std::remove_cv<X>::type
>
{};
namespace detail {
template<
typename FloatType,
@ -71,9 +33,9 @@ namespace sprout {
std::is_arithmetic<ArithmeticType1>::value && std::is_arithmetic<ArithmeticType2>::value
>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR typename sprout::math::atan2_promoted<ArithmeticType1, ArithmeticType2>::type
inline SPROUT_CONSTEXPR typename sprout::math::float_promote<ArithmeticType1, ArithmeticType2>::type
atan2(ArithmeticType1 y, ArithmeticType2 x) {
typedef typename sprout::math::atan2_promoted<ArithmeticType1, ArithmeticType2>::type type;
typedef typename sprout::math::float_promote<ArithmeticType1, ArithmeticType2>::type type;
return sprout::math::detail::atan2(static_cast<type>(y), static_cast<type>(x));
}
} // namespace detail