{

// create a JSON object with different entry types

json j =

{

{"integer", 1},

{"floating", 42.23},

{"string", "hello world"},

{"boolean", true},

{"object", {{"key1", 1}, {"key2", 2}}},

{"array", {1, 2, 3}}

};

// access existing values

int v_integer = j.value("/integer"_json_pointer, 0);

double v_floating = j.value("/floating"_json_pointer, 47.11);

// access nonexisting values and rely on default value

std::string v_string = j.value("/nonexisting"_json_pointer, "oops");

bool v_boolean = j.value("/nonexisting"_json_pointer, false);

// output values

std::cout << std::boolalpha << v_integer << " " << v_floating

<< " " << v_string << " " << v_boolean << "\n";