good-vector.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
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/**
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 * cpp-finally
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 * Copyright © 2024 František Kučera (Frantovo.cz, GlobalCode.info)
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation, version 3 of the License.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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 */
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#include <iostream>
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#include <exception>
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#include <vector>
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void fxThrowing(bool fail, void* data) {
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	std::cout << "  doing something with data " << data << std::endl;
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	if (fail) throw std::logic_error("error from fxThrowing()");
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}
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void fxAllocating(bool fail) {
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	std::vector<char> buf(486);
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	fxThrowing(fail, buf.data());
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}
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int main(int argc, char** argv) {
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	bool fail = argc == 2 && std::string("fail") == argv[1];
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	const char* name = "good-vector";
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	std::cout << name << " (fail=" << fail << ")\n";
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	try {
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		fxAllocating(fail);
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	} catch (const std::exception& e) {
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		std::cout << "  caught exception: " << e.what() << std::endl;
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	}
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}