On Thu, 09 Mar 2000 23:14:57 +0100, Tor Olav Kristensen wrote:
>If you use an editor with copy and paste features,
>I would guess that the maximum number of extra
>keystrokes you would have to do is about 7 or 8.
>(Or even fewer if you use a mouse.)

There are other reasons to prefer += in a case like that.  If I have 

#declare [big complicated expression] += 3;

and 

#declare [big complicated expression] = [big complicated expression]+3;

and I'm trying to debug the code, I don't have to verify that the 
big complicated expression in the first statement matches anything.

Also, it helps parse time if POV only has to parse the big complicated 
expression once.

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