Re: [boost] Boost.Multimethod proposal

Subject: Re: [boost] Boost.Multimethod proposal
From: Lorenzo Bettini (bettini_at_[hidden])
Date: 2009-08-24 09:56:55

Kim Barrett wrote:
> At 11:58 PM -0400 8/22/09, Edward Diener wrote:
>> This does not explain the practical purpose of multimethods. I know 
>> what virtual functions are, of course. What in multimethods improves 
>> on the polymorphic capabilities of virtual functions that make them a 
>> practical choice for use over normal polymorphism.
> 
> The previously referenced paper 
> (http://research.att.com/~bs/multimethods.pdf)
> contains rationale discussion, including several well chosen examples where
> multiple dispatch can be beneficial.
> 

a preprocessor for C++ implementing automatically (and safely) double 
dispatch is http://doublecpp.sourceforge.net/

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