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CLI11/examples/enum.cpp
Philip Top cbbf20ed93
Ci build update (#1151)
update ci build images, remove ubuntu 20.04 and update a few others, fix some newer clang-tidy warnings

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2025-04-19 09:14:59 -07:00

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// Copyright (c) 2017-2025, University of Cincinnati, developed by Henry Schreiner
// under NSF AWARD 1414736 and by the respective contributors.
// All rights reserved.
//
// SPDX-License-Identifier: BSD-3-Clause
#include <CLI/CLI.hpp>
#include <iostream>
#include <map>
#include <string>
// NOLINTNEXTLINE
enum class Level : int { High, Medium, Low };
int main(int argc, char **argv) {
CLI::App app;
Level level{Level::Low};
// specify string->value mappings
std::map<std::string, Level> map{{"high", Level::High}, {"medium", Level::Medium}, {"low", Level::Low}};
// CheckedTransformer translates and checks whether the results are either in one of the strings or in one of the
// translations already
app.add_option("-l,--level", level, "Level settings")
->required()
->transform(CLI::CheckedTransformer(map, CLI::ignore_case));
CLI11_PARSE(app, argc, argv);
// CLI11's built in enum streaming can be used outside CLI11 like this:
using CLI::enums::operator<<;
std::cout << "Enum received: " << level << '\n';
return 0;
}