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// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
namespace detail {
template <typename Func>
struct ScopeExitHelper {
explicit ScopeExitHelper(Func&& func) : func(std::move(func)) {}
~ScopeExitHelper() { func(); }
Func func;
};
template <typename Func>
ScopeExitHelper<Func> ScopeExit(Func&& func) { return ScopeExitHelper<Func>(std::move(func)); }
}
/**
* This macro allows you to conveniently specify a block of code that will run on scope exit. Handy
* for doing ad-hoc clean-up tasks in a function with multiple returns.
*
* Example usage:
* \code
* const int saved_val = g_foo;
* g_foo = 55;
* SCOPE_EXIT({ g_foo = saved_val; });
*
* if (Bar()) {
* return 0;
* } else {
* return 20;
* }
* \endcode
*/
#define SCOPE_EXIT(body) auto scope_exit_helper_##__LINE__ = detail::ScopeExit([&]() body)
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