Thread: Number user input

Originally Posted by Bayint Naung

User enter something invalid (say number gt max) then for 2nd try,user hits EOF.
so input > max; and you are returning some value greater than max
What a superuser!

So just make a conditional return, at the end of the function. Either <min or >max could be a normal unrecoverable error. It just so happens the only unrecoverable errors are:

Code:

    if (ferror (stdin) || feof (stdin)) {
        clearerr (stdin);
        return min - 1;
    }
    else {
        return return_value;
    }

I would stick to comparing errno with 0 or errno.h macros. errno is a standardized variable, so use your own flags rather than extending errno.