json/docs/examples/json_pointer__empty.cpp
Niels Lohmann d1d79b930d
Adjust JSON Pointer examples (#3622)
* 📝 adjust JSON Pointer examples

* 👷 add test for documentation

* 📝 note platform-dependent output on some examples
2022-07-29 14:28:37 +02:00

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C++

#include <iostream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
// different JSON Pointers
json::json_pointer ptr0;
json::json_pointer ptr1("");
json::json_pointer ptr2("/foo");
json::json_pointer ptr3("/foo/0");
// call empty()
std::cout << std::boolalpha
<< "\"" << ptr0 << "\": " << ptr0.empty() << '\n'
<< "\"" << ptr1 << "\": " << ptr1.empty() << '\n'
<< "\"" << ptr2 << "\": " << ptr2.empty() << '\n'
<< "\"" << ptr3 << "\": " << ptr3.empty() << std::endl;
}