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magic_enum/example/example.cpp
2019-04-02 00:05:34 +05:00

51 lines
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C++

// Licensed under the MIT License <http://opensource.org/licenses/MIT>.
// SPDX-License-Identifier: MIT
// Copyright (c) 2019 Daniil Goncharov <neargye@gmail.com>.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
#include <magic_enum.hpp>
#include <iostream>
enum Color { RED = -10, BLUE = 0, GREEN = 10 };
int main() {
// Enum variable to string enum name.
auto c1 = Color::RED;
auto c1_name = magic_enum::enum_to_string(c1);
if (c1_name.has_value()) {
std::cout << c1_name.value() << std::endl; // RED
}
// String enum name to enum variable.
auto c2 = magic_enum::enum_from_string<Color>("GREEN");
if (c2.has_value() && c2.value() == Color::GREEN) {
std::cout << "GREEN = " << c2.value() << std::endl; // GREEN = 10
}
// Static storage enum variable to string enum name.
constexpr auto c3 = Color::BLUE;
constexpr auto c3_name = magic_enum::enum_to_string<c3>();
if (c3_name.has_value()) {
std::cout << c3_name.value() << std::endl; // BLUE
}
return 0;
}