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List:       kde-devel
Subject:    Re: c++ question: code duplication across classes
From:       Benoit Jacob <jacob () math ! jussieu ! fr>
Date:       2006-09-22 14:19:20
Message-ID: Pine.LNX.4.64.0609221611560.22325 () galois4 ! math ! jussieu ! fr
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So I am doing this CRTP thing, and I have a problem: is there a way that 
I can put the operators like operator=, +=, -=, ... in the base class? Or 
am I forced to implement them in each subclass?

When trying to put them in the base class, I'm running into problems as 
C++ specifies that operator= doesn't get inherited by default. I read 
something about the 'using' C++ keyword but that doesn't seem to be 
compatible with templates.

So am I forced to put the operators in the subclasses? No way around that?

Benoit

> CRTP or global functions. I really like the CRTP (which stands for "Curiously
> Recurring Template Pattern btw), so I'll go with it. But if you're more
> confident with global functions, use them.
> -- 
> Sylvain
>
 
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