Re: Array of Variant Records Question...

[Ted Dennison <dennison@telepath.com>]

In article <7r5vh3$imu1@svlss.lmms.lmco.com>,
  "Bruce Detter" <bruce.detter@lmco.com> wrote:
> How do you declare an array of variant records where each variant
record's
> descriminant is the array index?  Can it be done at all?  I would
prefer not
> to use access pointers if it can be avoided.

I don't really see a way to do that. I think you'd have to load those
values into the record discrimintants manually. If the record type has a
default value for the discriminant you could use a loop to do it.
Otherwise you will have to load each discriminant value in literally in
an initialization when the object is declared. Alternatively you could
try creating an (impure) function that returns the first index the first
time its called, and a number 1 higher each subsequent time. Then you
could use that function to initialize the discriminant fields in the
records when they are declared.

Out of curiosity, what are you trying to accomplish with this? The
typical use for a numerical discriminant in a variant record is to size
an array subfield of that record. What you are asking for would then
give you a sort of triangular matrix; an interesting structure indeed.

--
T.E.D.


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