[fitsbits] Proposed Changes to the FITS Standard
Thierry Forveille
Thierry.Forveille at obs.ujf-grenoble.fr
Mon Aug 20 10:26:56 EDT 2007
Doug Tody a écrit :
> I'll just second this. I have seen many cases where a FITS header gets
> multiple keyword instances after it has been modified by different
> programs. This is awful of course as the header is then ambiguous,
> but it happens. Software may or may not use the last instance as
> a runtime value; for example, if the software does a linear search
> through the header it is possible that it will take the first value
> encountered (for either reading or writing) as this is more efficient,
> and there are not supposed to be multiple keyword instances.
Well, if the software does a linear search through the header,
I think it already relinquished its right to invoke
efficiency considerations :-)
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