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List:       kde-devel
Subject:    Re: c++ question: code duplication across classes
From:       Benoit Jacob <jacob () math ! jussieu ! fr>
Date:       2006-09-20 8:23:44
Message-ID: Pine.LNX.4.64.0609201020030.7064 () galois2 ! math ! jussieu ! fr
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Wait, I misread your reply :)

> For a simple class,
> sizeof(vtable) = k + sizeof (void (*)()) * N

so, what is the answer to my question: does that inflate the sizeof of my 
class? If I construct 1000 objects of this class, will the vtable be 
replicated 1000 times ? (I warned you it was a stupid question...)

For the speed overhead, thanks, I'll look for docs to see if this is still 
an issue.

Benoit


 
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