json/docs/examples/nlohmann_json_serialize_enum_2.cpp
Niels Lohmann b21c345179
Reorganize directories (#3462)
* 🚚 move files
* 🚚 rename doc folder to docs
* 🚚 rename test folder to tests
2022-05-01 09:41:50 +02:00

34 lines
792 B
C++

#include <iostream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
namespace ns
{
enum class Color
{
red, green, blue, unknown
};
NLOHMANN_JSON_SERIALIZE_ENUM(Color,
{
{ Color::unknown, "unknown" }, { Color::red, "red" },
{ Color::green, "green" }, { Color::blue, "blue" },
{ Color::red, "rot" } // a second conversion for Color::red
})
}
int main()
{
// serialization
json j_red = ns::Color::red;
std::cout << static_cast<int>(ns::Color::red) << " -> " << j_red << std::endl;
// deserialization
json j_rot = "rot";
auto rot = j_rot.get<ns::Color>();
auto red = j_red.get<ns::Color>();
std::cout << j_rot << " -> " << static_cast<int>(rot) << std::endl;
std::cout << j_red << " -> " << static_cast<int>(red) << std::endl;
}