thread c 2b 2b

1// thread example
2#include <iostream>       // std::cout
3#include <thread>         // std::thread
4 
5void foo() 
6{
7  // do stuff...
8}
9
10void bar(int x)
11{
12  // do stuff...
13}
14
15int main() 
16{
17  std::thread first (foo);     // spawn new thread that calls foo()
18  std::thread second (bar,0);  // spawn new thread that calls bar(0)
19
20  std::cout << "main, foo and bar now execute concurrently...\n";
21
22  // synchronize threads:
23  first.join();                // pauses until first finishes
24  second.join();               // pauses until second finishes
25
26  std::cout << "foo and bar completed.\n";
27
28  return 0;
29}