Function operator "" _json

3rd/nlohmann_json/include/nlohmann/json.hpp:9050–9053

*/
JSON_HEDLEY_NON_NULL(1)
inline nlohmann::json operator "" _json(const char* s, std::size_t n)
{
    return nlohmann::json::parse(s, s + n);
}

/*!
@brief user-defined string literal for JSON pointer