#include <iostream>
#include <variant>
#include <string>

#if 0
int main() {
  std::variant<int, float, std::string> v;

  v = 42;
  std::cout << std::get<int>(v) << std::endl; // prints 42

  v = 3.14f;
  std::cout << std::get<float>(v) << std::endl; // prints 3.14

  v = "hello world";
  std::cout << std::get<std::string>(v) << std::endl; // prints "hello world"

  return 0;
}
bellow one is get if example
#endif

int main() {
  std::variant<int, float, std::string> var = "hello";
  if (auto value = std::get_if<std::string>(&var)) {
    std::cout << "Got string: " << *value << std::endl;
  } else {
    std::cout << "value not a string" << std::endl;
  }
  return 0;
}