Input validation (C)

[PhilthyPhil]

I have to take a number of inputs which must be positive and not exceed a short int, I have been told 'the user must be able to bash their hands on the keyboard and throw the computer out of the window and your program must not break' I did the following...

	do {

		printf("Enter value for x (0-32768): ");
		scanf("%d", &x);

	} while( (x < 0)||(x > 32768) );

But when I put anything in that isn't a number it goes into an infinite loop and I'm not sure why or how to fix it.

 

[PhilthyPhil]

The point of the loop is to keep asking for the input until an input which meets the requirements is given. If i initialise x as 0 before or change the conditions it won't work. I think I will have to come up with another way to validate.