ceph/src/jaegertracing/opentelemetry-cpp/third_party/nlohmann-json/doc/examples/basic_json__nullptr_t.cpp

   1 #include <iostream>
   2 #include <nlohmann/json.hpp>
   3
   4 using json = nlohmann::json;
   5
   6 int main()
   7 {
   8     // implicitly create a JSON null value
   9     json j1;
  10
  11     // explicitly create a JSON null value
  12     json j2(nullptr);
  13
  14     // serialize the JSON null value
  15     std::cout << j1 << '\n' << j2 << '\n';
  16 }