Re: use of vtbl

"Hans Aberg" <>
14 Aug 2002 02:16:14 -0400

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From: "Hans Aberg" <>
Newsgroups: comp.compilers
Date: 14 Aug 2002 02:16:14 -0400
Organization: Mathematics
References: 01-08-021 02-08-018 02-08-042
Keywords: C++, design
Posted-Date: 14 Aug 2002 02:16:13 EDT

The moderator groused:
>[Yes, I said they didn't define the vtbl. Evidently whoever told me
>they considered doing so lied to me. -John]

It is quite possible that such a thing might have been considered but
rejected, as knowledge about the underlying binary structure is
sometimes needed, for example in distributed programming (or rather,
how to translate via a common binary common model). The current C++
standard does not include anything about the underlying binary
implementation expect, C style, some limits (including the size of the

But the distributed programming support part is now a task for the
next C++ revision. So it may happen that such questions about the
underlying binary model moves up on the agenda.

As for the vtbl, the C++ standard does not mention it, and thus one is
free to choose another implementation.

    Hans Aberg * Anti-spam: remove "remove." from email address.
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