Aaron
> come again... The set size is a bit field with 1 bit for each element
padded
> out to the nearest 8 bits. hence a set for a 13 element enumeration is 13
bits
> but is stored in 16bits... This has absolutely nothing to do with type
safety.
Where do you get this from?
I would have thought (and you will correct me) that
MySet = (chris, john, bob, mary, fred, pam); is 6 enumerations
MyXSet = set of MySet; is a set of 6 possible elements (make sense to
store as a byte or Word)
x := [chris, pam, mary]; sets bits 1,4,6 *not packed* in x.
y := [chris] sets bit 1 in y
which is why union operators are fast as they are single Op Codes
Ord(x) = 1 + 8 + 32 = 41
Ord(y) = 1
Makes sense but as a set can be up to 256 bits it is not universal
Regards
Neven
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