Re: Empty base optimization, sharing vptrs
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Re: Empty base optimization, sharing vptrs
- To: "Matt Austern" <austern@xxxxxxxxxxxxxxxxxxx>
- Subject: Re: Empty base optimization, sharing vptrs
- From: Jason Merrill <jason@xxxxxxxxxx>
- Date: 16 Jun 1999 21:02:51 -0700
>>>>> Matt Austern <austern@xxxxxxxxxxxxxxxxxxx> writes:
> Another goof I just noticed: if it's a virtual but nonpolymorphic
> base class then we can't put it at offset 0, because the derived
> class has a vptr at offset 0 and the base class doesn't.
If it's empty and nonpolymorphic, then it doesn't matter where we put it
because its address will never be used for anything.
Jason