OneAndOneIs2

Section 4.3, pages 76-78

I realise that this is a long shot, but: Can anyone tell me why the buffer used by getch() and ungetch() is an array of 100 chars?

Because no matter how I follow the logic, I can't see any way that you'll ever have more than one char going into the buffer: getop() only puts a maximum of one char into the buffer at the end of its run, and the first thing it does when it's called is to take a char from the buffer if there is one.

Am I missing something, or is this array here for future-proof flexibility or something?