* select semantic
@ 2005-04-27 10:46 Marcin B.
2005-04-27 16:34 ` Jean-Pierre Rosen
0 siblings, 1 reply; 2+ messages in thread
From: Marcin B. @ 2005-04-27 10:46 UTC (permalink / raw)
Hello,
I would like to ask about semantic of "select" instruction.
In a few "when" branches I use EntryName'COUNT.
Are conditions in "when" branches being recalculated, when
EntryName'COUNT changes??
--
Best regards
M.B.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: select semantic
2005-04-27 10:46 select semantic Marcin B.
@ 2005-04-27 16:34 ` Jean-Pierre Rosen
0 siblings, 0 replies; 2+ messages in thread
From: Jean-Pierre Rosen @ 2005-04-27 16:34 UTC (permalink / raw)
Marcin B. a �crit :
> Hello,
>
> I would like to ask about semantic of "select" instruction.
> In a few "when" branches I use EntryName'COUNT.
> Are conditions in "when" branches being recalculated, when
> EntryName'COUNT changes??
>
No. Guards (the official name of the condition that follows "when") are
calculated only once, when you enter the select statement.
OTOH, it is quite unlikely that you *really* need to depend on a guard
that includes a 'Count attribute. Could you post what you are trying to
do? There might be a better solution.
--
---------------------------------------------------------
J-P. Rosen (rosen@adalog.fr)
Visit Adalog's web site at http://www.adalog.fr
^ permalink raw reply [flat|nested] 2+ messages in thread
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