>
> > I also use this " " to replace the NULL pvname if the user
> > mistakenly provided a NULL string for name search to an
> > interactive CA client. If I remember it right this will
> > avaoid the problem of core dump and accidentally get
> > out of the interactive CA client.
>
> I don't understand: if you're going to test for a zero-
> length string, why even bother making the CA function call
> with name " " when you know it's going to fail?
>
Sometimes we do want to have some legal 'NULL' string pvname,
e.g. in montitoring variable number of positioner and
detector pvnames in a scan record. It is intentionally as
a NULL string.
Ben-chin
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