From: Stefen Boyd (stefen@boyd.com)
Date: Tue Jul 21 1998 - 13:08:19 PDT
At 11:47 AM 7/21/98 -0700, Karen L. Pieper wrote:
<p>BAD MSG:
>
What did we decide about a single versus double evaluation of the common
>subexpression? If there are side-effects in the expression, that makes
>a difference (function calls can create side-effects.).
>
I vote for single evaluation. If the function returns
a different value every call (because of $random, static
local variable, etc.) it would be *very* bad to have it
evaluated twice (our constant difference becomes variable...
oops!).
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Stefen
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