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

   1 #include <iostream>
   2 #include <nlohmann/json.hpp>
   3
   4 using json = nlohmann::json;
   5
   6 int main()
   7 {
   8     // create JSON values
   9     json array = {1, 2, 3, 4, 5};
  10     json null;
  11
  12     // print values
  13     std::cout << array << '\n';
  14     std::cout << null << '\n';
  15
  16     // add values
  17     array.emplace_back(6);
  18     null.emplace_back("first");
  19     null.emplace_back(3, "second");
  20
  21     // print values
  22     std::cout << array << '\n';
  23     std::cout << null << '\n';
  24 }