json/docs/examples/get_ptr.cpp
Niels Lohmann b21c345179
Reorganize directories (#3462)
* 🚚 move files
* 🚚 rename doc folder to docs
* 🚚 rename test folder to tests
2022-05-01 09:41:50 +02:00

22 lines
641 B
C++

#include <iostream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
// create a JSON number
json value = 17;
// explicitly getting pointers
auto p1 = value.get_ptr<const json::number_integer_t*>();
auto p2 = value.get_ptr<json::number_integer_t*>();
auto p3 = value.get_ptr<json::number_integer_t* const>();
auto p4 = value.get_ptr<const json::number_integer_t* const>();
auto p5 = value.get_ptr<json::number_float_t*>();
// print the pointees
std::cout << *p1 << ' ' << *p2 << ' ' << *p3 << ' ' << *p4 << '\n';
std::cout << std::boolalpha << (p5 == nullptr) << '\n';
}