#include <iostream> #include <nlohmann/json.hpp> using json = nlohmann::json; int main() { // create empty JSON Pointer json::json_pointer ptr; std::cout << ptr << '\n'; // call push_back() ptr.push_back("foo"); std::cout << ptr << '\n'; ptr.push_back("0"); std::cout << ptr << '\n'; ptr.push_back("bar"); std::cout << ptr << '\n'; }