30 lines
601 B
C++
30 lines
601 B
C++
// from: http://solarianprogrammer.com/2011/12/16/cpp-11-thread-tutorial/
|
|
#include <iostream>
|
|
#include <thread>
|
|
|
|
static const int num_threads = 8;
|
|
|
|
void call_from_thread(int tid) {
|
|
std::cout << "Launched by thread " << tid << std::endl;
|
|
double x = 1.0;
|
|
for(int i = 0; i < 2E9; i++) {
|
|
x /= 2;
|
|
}
|
|
}
|
|
|
|
int main() {
|
|
std::thread t[num_threads];
|
|
|
|
for (int i = 0; i < num_threads; ++i) {
|
|
t[i] = std::thread(call_from_thread, i);
|
|
}
|
|
|
|
std::cout << "Launched from the main\n";
|
|
|
|
for (int i = 0; i < num_threads; ++i) {
|
|
t[i].join();
|
|
}
|
|
|
|
return 0;
|
|
}
|