Re: Memory overwrite?

[bobduff@world.std.com (Robert A Duff)]

In article <3gehlo$i05@gnat.cs.nyu.edu>, Robert Dewar <dewar@cs.nyu.edu> wrote:
>But just the fact that you are using two different I's does not seem
>to warrant a warning to me!

This mistake is so common, I think it deserves a warning.  You've got
nothing better to do, right?  ;-)

If you have a variable that is never initialized (whether it's used or
not), and an inner for loop index of the same name, that's when I would
give a warning about not needing to declare the for loop index.  Of
course, a variable never initialized (or used) might deserve a warning
anyway, but if you just say "variable I never used", you will confuse
someone who thought you needed to declare I outside the for loop.  To
me, it seems friendy to give a more specific message in the for-loop
case.

- Bob