[E-Lang] Immutable map operations

[Bill Frantz]

At 9:04 AM -0800 3/26/01, Tyler Close wrote:
>(~) is already supported by the language. The "& ~" syntax is a very
>old idiom for masking one set with another, typically bit sets. It's
>seems a little strange to me that both you and Bill find it strange to
>apply the same idiom to a collection of objects. If its good for a
>collection of bits, it must be good for a collection of objects.

My question is more of the form, if I perform the following operation:

B := ~A;

Where A is a collection, what does B contain?

Cheers - Bill


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