gwj / po_oopc · Files

#include <iostream>
#include <string>
#include <thread>
#include <future>
#include <exception>

std::string fun() {
 std::this_thread::sleep_for (std::chrono::seconds(5));
 throw std::runtime_error("Exception from future");
 return std::string ("Hello from future!");
}

int main(int argc, const char * argv[])
{
 std::future<std::string> fut = std::async(&fun); // asynchronously: starts now or later
 try {
  std::string str = fut.get(); // but will be finished here
  std::cout << str << std::endl;
 } catch(std::exception& ex) {
 std::cout << ex.what() << std::endl;
 }
 return 0;
}