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From: Itay Maman (itay_maman_at_[hidden])
Date: 2002-06-13 07:57:45

Peter Dimov wrote:
> From: "Itay Maman" <itay_maman_at_[hidden]>
>>The variant implementation relies on the ability to map concrete types
>>to integers. My implementation uses the index_of TypeList algorithm, for
>>So, unless we'll come-up with some birlliant way to do this mapping
>>differently, we will not be able to implement a variant whose list of
>>legal (concrete) types is 'open'.
> It is possible to implement an 'open' list via inheritance.

Sure, but this is intrusive (which is unacceptable for a variant class),
isn't it?


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