scope.hpp

Go to the documentation of this file.

// SPDX-FileCopyrightText: 2026 Klaus Reimer <k@ailis.de>
// SPDX-License-Identifier: MIT
 
#pragma once
 
#include <concepts>
#include <type_traits>
#include <utility>
 
namespace kaycxx::core {
 
template <typename F>
requires std::invocable<F&> && std::is_nothrow_invocable_v<F&>
class [[nodiscard]] scope_exit {
public:
    explicit scope_exit(F callback) : callback_{std::move(callback)} {}
    ~scope_exit() noexcept {
        callback_();
    }
    scope_exit(const scope_exit&) = delete;
    scope_exit& operator=(const scope_exit&) = delete;
    scope_exit(scope_exit&&) = delete;
    scope_exit& operator=(scope_exit&&) = delete;
 
private:
    F callback_;
};
 
template <typename F>
scope_exit(F) -> scope_exit<F>;
 
} // namespace kaycxx::core