mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-10 14:11:43 +00:00
53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
/*
|
|
* Copyright (c) 2018 Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <functional>
|
|
|
|
namespace detail {
|
|
|
|
template<typename T>
|
|
struct class_of;
|
|
|
|
template<typename Ret, typename C>
|
|
struct class_of<Ret C::*> {
|
|
using type = C;
|
|
};
|
|
|
|
template<typename T>
|
|
using class_of_t = typename class_of<T>::type;
|
|
|
|
template<typename Mem, typename T, typename C = class_of_t<Mem>>
|
|
struct member_equals_fn_helper {
|
|
T ref;
|
|
Mem mem_fn;
|
|
|
|
bool operator()(const C& val) const {
|
|
return (std::mem_fn(mem_fn)(val) == ref);
|
|
}
|
|
|
|
bool operator()(C&& val) const {
|
|
return (std::mem_fn(mem_fn)(std::move(val)) == ref);
|
|
}
|
|
};
|
|
|
|
} // namespace detail
|
|
|
|
template<typename Mem, typename T>
|
|
auto member_equals_fn(Mem mem, T ref) {
|
|
return detail::member_equals_fn_helper<Mem, T>{std::move(ref), std::move(mem)};
|
|
}
|