Wait(): better than system.pause()?

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March 12th, 2008, 06:34 AM

ashuaki

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General - Wait(): better than system.pause()?

I wrote a short function to wait a specified number of seconds, perfect for showing short samples to my friends who aren't even aware of how to use the command line, so that a program like

Code:

#include <iostream.h>

int main() {

x = 5+5;

cout << x;

}

wouldn't close instantly upon completion.

The function is

Code:

void Pause(int);

// other code

void Pause(int time) {
	clock_t endwait;
  endwait = clock () + time * CLOCKS_PER_SEC ;
  while (clock() < endwait) {}
  
}

*NOTE: Requires time.h

so

Code:

Pause(5);

Would hold the program for 5 seconds.

Is this preferable to system.pause()?
Does system.pause() have faculties for specifying a default pause period?

March 13th, 2008, 08:14 AM

MaHuJa

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system("pause");
has the same effect as when you use pause on the command line or in a batch file; it waits until the user presses a key.

Also, note that while your program is waiting, it's "spinning" the cpu at 100%.
Just use Sleep();
At the very least, call Sleep(1) in the loop, such that it only checks each 1 ms, or do sleep(seconds*1000)

system.pause() sounds like a .net thing, of which I have no idea.

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