// SPDX-License-Identifier: MIT #include int main(int argc, char *argv[]) { argparse::ArgumentParser program("test"); program.add_argument("-o", "--output") .required() .help("specify the output file."); try { program.parse_args(argc, argv); } catch (const std::runtime_error &err) { std::cerr << err.what() << std::endl; std::cerr << program; return 1; } std::cout << "Output written to " << program.get("-o") << "\n"; }