template <class Rep, class Period> void sleep_for (const chrono::duration<Rep,Period>& rel_time);
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// this_thread::sleep_for example
#include <iostream> // std::cout, std::endl
#include <thread> // std::this_thread::sleep_for
#include <chrono> // std::chrono::seconds
int main()
{
std::cout << "countdown:\n";
for (int i=10; i>0; --i) {
std::cout << i << std::endl;
std::this_thread::sleep_for (std::chrono::seconds(1));
}
std::cout << "Lift off!\n";
return 0;
}countdown: 10 9 8 7 6 5 4 3 2 1 Lift off!