mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-12-23 21:25:49 +00:00
55 lines
1.5 KiB
C++
55 lines
1.5 KiB
C++
#ifndef SPROUT_MATH_FLOAT_PROMOTE_HPP
|
|
#define SPROUT_MATH_FLOAT_PROMOTE_HPP
|
|
|
|
#include <type_traits>
|
|
#include <sprout/config.hpp>
|
|
|
|
namespace sprout {
|
|
namespace math {
|
|
namespace detail {
|
|
template<bool IsArithmetic, typename Current, typename Head, typename... Tail>
|
|
struct float_promote_impl {};
|
|
template<typename Current, typename Head>
|
|
struct float_promote_impl<true, Current, Head>
|
|
: public std::conditional<
|
|
(std::is_same<Current, long double>::value || std::is_same<Head, long double>::value),
|
|
long double,
|
|
double
|
|
>
|
|
{};
|
|
template<typename Current, typename Head, typename... Tail>
|
|
struct float_promote_impl<true, Current, Head, Tail...>
|
|
: public sprout::math::detail::float_promote_impl<
|
|
std::is_arithmetic<Head>::value,
|
|
typename std::conditional<
|
|
(std::is_same<Current, long double>::value || std::is_same<Head, long double>::value),
|
|
long double,
|
|
double
|
|
>::type,
|
|
Tail...
|
|
>
|
|
{};
|
|
|
|
template<typename Head, typename... Tail>
|
|
struct float_promote
|
|
: public sprout::math::detail::float_promote_impl<
|
|
std::is_arithmetic<Head>::value,
|
|
double,
|
|
Head, Tail...
|
|
>
|
|
{};
|
|
} // namespace detail
|
|
|
|
//
|
|
// float_promote
|
|
//
|
|
template<typename... Types>
|
|
struct float_promote
|
|
: public sprout::math::detail::float_promote<
|
|
typename std::remove_cv<Types>::type...
|
|
>
|
|
{};
|
|
} // namespace math
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_MATH_FLOAT_PROMOTE_HPP
|