Can somebody show me what I'm missing? :-)

Perhaps a good starting point would be to google C++ metatemplate programming. In fact, just consider any simple C++ template function, e.g. 

 template<class T1, class T2> bool max(T1 a, T2 b) { return a < b ? b 
+: a; }

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Any object-pair that supports the less-than operator can be used with this function. There is no explicit C<Comparable> interface -- and there's no loss of static type safety. You ask: "I don't understand what the advantage of avoiding explicit inheritance is?": I'd turn that round: what advantage would be gained by requiring an explicit interface? Once you've convinced yourself that, in the context of C++, the answer is "none": then we can consider the context being Perl. --Dave

In reply to Re: Re^2: OO-style modifiers for 'sub' ? by dpuu
in thread OO-style modifiers for 'sub' ? by Gilimanjaro

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