bad.cpp
author František Kučera <franta-hg@frantovo.cz>
Wed, 30 Oct 2024 22:08:49 +0100
changeset 2 64777e5b619f
parent 1 4502b1c7346d
permissions -rw-r--r--
class Finally with lambda
     1 /**
     2  * cpp-finally
     3  * Copyright © 2024 František Kučera (Frantovo.cz, GlobalCode.info)
     4  *
     5  * This program is free software: you can redistribute it and/or modify
     6  * it under the terms of the GNU General Public License as published by
     7  * the Free Software Foundation, version 3 of the License.
     8  *
     9  * This program is distributed in the hope that it will be useful,
    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  * GNU General Public License for more details.
    13  *
    14  * You should have received a copy of the GNU General Public License
    15  * along with this program. If not, see <http://www.gnu.org/licenses/>.
    16  */
    17 
    18 #include <iostream>
    19 #include <exception>
    20 
    21 void fxThrowing(bool fail, void* data) {
    22 	std::cout << "  doing something with data " << data << std::endl;
    23 	if (fail) throw std::logic_error("error from fxThrowing()");
    24 }
    25 
    26 void fxAllocating(bool fail) {
    27 	void* data = malloc(486);
    28 	std::cout << "  allocated memory at: " << data << std::endl;
    29 	fxThrowing(fail, data);
    30 	free(data);
    31 	std::cout << "  freed memory at: " << data << std::endl;
    32 }
    33 
    34 int main(int argc, char** argv) {
    35 	bool fail = argc == 2 && std::string("fail") == argv[1];
    36 	const char* name = "bad";
    37 	std::cout << name << " (fail=" << fail << ")\n";
    38 	try {
    39 		fxAllocating(fail);
    40 	} catch (const std::exception& e) {
    41 		std::cout << "  caught exception: " << e.what() << std::endl;
    42 	}
    43 }