[clue-tech] increment weather

[David L. Anselmi]

Jed S. Baer wrote:
> Well, I kinda think the whole point of the while loop is that the loop
> condition variable _is_ modified inside the loop.

Sometimes, but not always.  Sometimes the condition is an expression that isn't affected by anything 
in the loop.  Like:

while read foo ...

read returns false at EOF, which probably doesn't get set inside the loop.

> Well, I suppose I care about correctness some. As in I wouldn't use:
>
>    for (( i = 0; i<  10; i++ ))
>
> if I were going to be messing with i in the loop.

Exactly.

Dave