Author: Stan Eisenstat
Subject: Re: [Cs223] Hwk2 warning message
Date: Tuesday, 25 Feb 2020, 13:46:31

    > Message Posted By: Unknown
    >
    > Hi, on the hw2 Gradesheet, I got 1 mark deducted due to the warning
    > message "implicit declaration of function 'isdigit'"
    > I didn't know that we cannot use 'isdigit' in hw2, since we are allowed to
    > use that function in hw1 ... Are we required to remove any warning message
    > unless the specs explicitly state that we can use a certain function?

You were allowed to use isdigit(), but you needed to
provide a function prototype either by #include-ing
 or providing one explicitly.

--Stan-