1 #include <iostream> 2 #include <nlohmann/json.hpp> 3 4 using json = nlohmann::json; 5 main()6int main() 7 { 8 // create a JSON value 9 const json j = 10 { 11 {"number", 1}, {"string", "foo"}, {"array", {1, 2}} 12 }; 13 14 // read-only access 15 16 // output element with JSON pointer "/number" 17 std::cout << j["/number"_json_pointer] << '\n'; 18 // output element with JSON pointer "/string" 19 std::cout << j["/string"_json_pointer] << '\n'; 20 // output element with JSON pointer "/array" 21 std::cout << j["/array"_json_pointer] << '\n'; 22 // output element with JSON pointer "/array/1" 23 std::cout << j["/array/1"_json_pointer] << '\n'; 24 } 25