1 #include <iostream> 2 #include <nlohmann/json.hpp> 3 4 using json = nlohmann::json; 5 main()6int main() 7 { 8 // create JSON values 9 json j_null; 10 json j_boolean = true; 11 json j_number_integer = 17; 12 json j_number_float = 23.42; 13 json j_object = {{"one", 1}, {"two", 2}}; 14 json j_array = {1, 2, 4, 8, 16}; 15 json j_string = "Hello, world"; 16 17 // call clear() 18 j_null.clear(); 19 j_boolean.clear(); 20 j_number_integer.clear(); 21 j_number_float.clear(); 22 j_object.clear(); 23 j_array.clear(); 24 j_string.clear(); 25 26 // serialize the cleared values() 27 std::cout << j_null << '\n'; 28 std::cout << j_boolean << '\n'; 29 std::cout << j_number_integer << '\n'; 30 std::cout << j_number_float << '\n'; 31 std::cout << j_object << '\n'; 32 std::cout << j_array << '\n'; 33 std::cout << j_string << '\n'; 34 } 35