How to use delay function?

Question

I just wanna know that is there a function to delay a time in printing a output?
please show me whit example!!!

Answer 1

If you use Windows, you may include the <windows.h> header to use Sleep() function.

i.e.

include <iostream>
include <windows.h>
using namespace std;

int main()
{
cout << "Hello" << endl;
Sleep(1000);
cout << "world!" << endl;

return 0;
}

The above code will delay the second cout for 1 second. Value of 1000 is written in the parenthesis because it is calculated in milliseconds.

If you are on an alternate operating system, I am afraid you may have to await input from the others.

Hope I helped. :>

Answer 2

It's a bit convoluted, but with C++11 there is a platform independent way to wait for a certain amount of time. Say I wanted to sleep for 4 seconds, I could do:

#include <chrono>
// Create a std::chrono::<duration> object with the time you want to sleep for
std::chrono::seconds timespan(4);
// Pass that into the std::this_thread::sleep_for() function
std::this_thread::sleep_for(timespan);

Before this, the way you did it was platform dependent. Which means that depending upon your OS and environment, your code might not work/compile.