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#include <iostream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
// different JSON Pointers
json::json_pointer ptr1("/foo");
json::json_pointer ptr2("/foo/0");
// call empty()
std::cout << "last reference token of \"" << ptr1 << "\" is \"" << ptr1.back() << "\"\n"
<< "last reference token of \"" << ptr2 << "\" is \"" << ptr2.back() << "\"" << std::endl;
}