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<== Date ==> <== Thread ==>

Subject: Re: calcPerform
From: Marty Kraimer <mrk@aps.anl.gov>
To: Dirk Zimoch <dirk.zimoch@psi.ch>
Cc: TECHTALK <tech-talk@aps.anl.gov>
Date: Thu, 13 Mar 2003 11:04:36 -0600
Dirk Zimoch wrote:
Hi folks,

some time ago, Timo Korhonen has patched the calcPerform function to return -1 (=error) if the result of the calculation is nan. This has been done to raise an INVALID_ALARM and not to process the OUT link if IVOA="Don't drive outputs". (That required a patch of the calcout record, too. But that's an other story.)

My question is: should calcPerform return -1 as well if the result is inf (or -inf) ?

Awaiting your comments,
Dirk




In the latest 3.13 and 3.14 I find



grep isnan *.c calcPerform.c: return(((isnan(*presult)||isinf(*presult)) ? -1 : 0)); sCalcPerform.c: if (isnan(ps->d)) { sCalcPerform.c: if (isnan(*pd)) { sCalcPerform.c: return(((isnan(*presult)||isinf(*presult)) ? -1 : 0));

Marty Kraimer


References:
calcPerform Dirk Zimoch

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