Exits the loop after a certain amount of time if there's no input

Question

I\'m just wondering whether is it possible and how do I implement this feature, where we exit from the loop if there\'s no input from the user. For example, I want to exit t

Answer 1

Although the time_t structure returned by time() is most likely a number of seconds, you should not be performing maths on it. Instead use difftime()

double difftime ( time_t time2, time_t time1 );

Calculates the difference in seconds between time1 and time2.

You do not need to call main() from within main() and I'm not sure why you would think that is a good idea.

Also, getchar() will wait for a key to be pressed, so it won't be counting time in the background.