Re: variant records

[bhs@MITRE-BEDFORD.ARPA (Bev Sobelman)]

This may apply to your constraint error problem:

When you declare a rec variable, are you using the default discriminant 
and then reassigning the whole record, or are you overriding the
default when you declare the record variable?  Consider these:

      Rec_1 : rec (kind => B);     -- this is a constrained record

       --- VS ---

      Rec_2 : rec;                -- this is unconstrained with
          .                          default discrim. = A 
          .
          .
      Rec_2 := (kind => B);       -- now have discrim. = B, still
                                     unconstrained

I haven't looked at the whole thing carefully enough to know whether
this would make a difference at position 'Z', but I thought it was
worth mentioning.

Bev Sobelman
bhs@mitre-bedford.arpa