1c5f01b2fSopenharmony_ci#include <iostream> 2c5f01b2fSopenharmony_ci#include <nlohmann/json.hpp> 3c5f01b2fSopenharmony_ci 4c5f01b2fSopenharmony_ciusing json = nlohmann::json; 5c5f01b2fSopenharmony_ci 6c5f01b2fSopenharmony_ciint main() 7c5f01b2fSopenharmony_ci{ 8c5f01b2fSopenharmony_ci // create JSON values 9c5f01b2fSopenharmony_ci json j_null; 10c5f01b2fSopenharmony_ci json j_boolean = true; 11c5f01b2fSopenharmony_ci json j_number_integer = 17; 12c5f01b2fSopenharmony_ci json j_number_float = 23.42; 13c5f01b2fSopenharmony_ci json j_number_unsigned_integer = 12345678987654321u; 14c5f01b2fSopenharmony_ci json j_object = {{"one", 1}, {"two", 2}}; 15c5f01b2fSopenharmony_ci json j_array = {1, 2, 4, 8, 16}; 16c5f01b2fSopenharmony_ci json j_string = "Hello, world"; 17c5f01b2fSopenharmony_ci json j_binary = json::binary({1, 2, 3}); 18c5f01b2fSopenharmony_ci 19c5f01b2fSopenharmony_ci // call is_string() 20c5f01b2fSopenharmony_ci std::cout << std::boolalpha; 21c5f01b2fSopenharmony_ci std::cout << j_null.is_string() << '\n'; 22c5f01b2fSopenharmony_ci std::cout << j_boolean.is_string() << '\n'; 23c5f01b2fSopenharmony_ci std::cout << j_number_integer.is_string() << '\n'; 24c5f01b2fSopenharmony_ci std::cout << j_number_unsigned_integer.is_string() << '\n'; 25c5f01b2fSopenharmony_ci std::cout << j_number_float.is_string() << '\n'; 26c5f01b2fSopenharmony_ci std::cout << j_object.is_string() << '\n'; 27c5f01b2fSopenharmony_ci std::cout << j_array.is_string() << '\n'; 28c5f01b2fSopenharmony_ci std::cout << j_string.is_string() << '\n'; 29c5f01b2fSopenharmony_ci std::cout << j_binary.is_string() << '\n'; 30c5f01b2fSopenharmony_ci} 31