* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
#pragma once
#include <memory>
#include <utility>
template <typename F> class ScopeGuard {
public:
constexpr explicit ScopeGuard(F &&func) : function(std::move(func))
{
}
~ScopeGuard()
{
std::move(function)();
}
private:
F function;
};
template <typename F> inline ScopeGuard<F> make_scope_guard(F &&function_)
{
return ScopeGuard<F>(std::forward<F>(function_));
}
#define SCOPE_EXIT_CONCAT(n, ...) const auto scope_exit##n = make_scope_guard([&] { __VA_ARGS__; })
#define SCOPE_EXIT_FWD(n, ...) SCOPE_EXIT_CONCAT(n, __VA_ARGS__)
#define SCOPE_EXIT(...) SCOPE_EXIT_FWD(__LINE__, __VA_ARGS__)