mirror of
https://github.com/bolero-MURAKAMI/Sprout
synced 2024-12-03 21:15:42 +00:00
29 lines
688 B
C++
29 lines
688 B
C++
|
#ifndef SPROUT_FUNCTIONAL_POLYMORPHIC_PRE_INC_HPP
|
||
|
|
#define SPROUT_FUNCTIONAL_POLYMORPHIC_PRE_INC_HPP
|
||
|
|
|
||
|
|
#include <utility>
|
||
|
|
#include <sprout/config.hpp>
|
||
|
|
#include <sprout/utility/forward.hpp>
|
||
|
|
|
||
|
|
namespace sprout {
|
||
|
|
//
|
||
|
|
// pre_inc_t
|
||
|
|
// pre_inc_
|
||
|
|
//
|
||
|
|
struct pre_inc_t {
|
||
|
|
public:
|
||
|
|
template<typename T>
|
||
|
|
SPROUT_CONSTEXPR decltype(++std::declval<T>())
|
||
|
|
operator()(T&& x)
|
||
|
|
const SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(++std::declval<T>()))
|
||
|
|
{
|
||
|
|
return ++sprout::forward<T>(x);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
namespace {
|
||
|
|
SPROUT_STATIC_CONSTEXPR sprout::pre_inc_t pre_inc_{};
|
||
|
|
} // anonymous-namespace
|
||
|
|
} // namespace sprout
|
||
|
|
|
||
|
|
#endif // #ifndef SPROUT_FUNCTIONAL_POLYMORPHIC_PRE_INC_HPP
|