C++ RAII template classes.
Please visit scope-guard for a more advanced version.
mkdir build && cd build
cmake ..
make
make unittest
It's also possible to use make test / ctest, this will execute the tests using ctest.
#include "guards/Guards.h"
#include <iostream>
#include <sys/socket.h>
void example()
{
using namespace guards;
auto guard = makeScopeGuard([]{ std::cout << "The End\n"; });
// ...
// 'The End' is printed on guard's destruction
}
void example2()
{
using namespace guards;
auto guard1 = makeTransactionGuard([]{ std::cout << "Guard #1\n"; });
auto guard2 = makeTransactionGuard([]{ std::cout << "Guard #2\n"; });
guard2.commit(); // Disarm
// ...
// Only 'Guard #1' is printed
}
void example3()
{
int fd = socket(AF_INET, SOCK_STREAM, 0);
// Ensure 'fd' is closed in any case
auto guard = makeScopeGuard([&fd] { close(fd); });
// ...
/*
* The socket is closed as `guard` is destructed,
* eg. out-of-scope or by an exception.
*/
}GNU General Public License (GPL)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that 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/>.
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