Function test_future

example/cpp20/operations/c_callback_wrapper.cpp:213–223

//------------------------------------------------------------------------------

void test_future()
{
  // Test our asynchronous operation using the use_future completion token.
  // This token causes the operation's initiating function to return a future,
  // which may be used to synchronously wait for the result of the operation.
  std::future<std::string> f =
    async_read_input("Enter your name", boost::asio::use_future);

  std::string result = f.get();
  std::cout << "Hello " << result << "\n";
}

//------------------------------------------------------------------------------