Breaking infinite loop.

Evgeni57

Hi, I need to break the infinite loop by pressing some key, 'x' for example. How can I do it in C or C++ for console application? Thanks.

Jijo Raj

Could you please explain what you are trying archive? Do you want to check whether the 'x' key is pressed, in between your loop? In that case check this - Non-Blocking input in Console Applications[^]. Just ignore my reply. Mark's idea is cool! :D Regards, Jijo.

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modified on Thursday, January 1, 2009 2:13 PM

Mark Salsbery

Just one way...

#include <conio.h>
...
int ch = 0;
do
{
// ...do something useful...

    if (\_kbhit())
    {
        ch = \_getch();
        ch = toupper(ch);
    }
}  while (ch != 'X');

Mark Salsbery Microsoft MVP - Visual C++ :java:

Jijo Raj

Mark, the _kbhit() is really cool and my 5 points for you! :) I was totally focused on "non-blocking input in C++" while searching. :sigh: Regards, Jijo.

_____________________________________________________ http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

Mark Salsbery

Heh thanks. I thought for sure there was a single non-blocking function, but I only seem to be able to find it when I WANT the blocking function and I forget what it is :-D If anyone knows, please refresh my memory :) Cheers, Mark

Mark Salsbery Microsoft MVP - Visual C++ :java: