Re: [boost] Re: typeof and Visual C++

From: Peder Holt (peder.holt_at_[hidden])
Date: 2005-03-30 08:04:28

On Wed, 30 Mar 2005 06:51:03 -0800, Arkadiy Vertleyb
<vertleyb_at_[hidden]> wrote:
> "Peder Holt" <peder.holt_at_[hidden]> wrote
> ...
> 
> <off topic>
> 
> Hey, welcome back!

Thanks :)

> How was your vacation?

Great! Travelling with a 3 month old baby to the other side of the
world is now proven to be doable :)

> 
> </off topic>
> 
> > Wow. Very impressive. What a pity noone has thought of that earlier...
> 
> How is one supposed to think of something like this?  The next thing we find
> out -- VC might already have an undocumented typeof -- just called
> differently :-)
> 
> > I have modified the current vintage implementation to use this form of
> > typeof, allowing it to compile with VC6.5 as well.
> 
> Did you remove __if_exists/if_not_exists stuff?  This would mean it would
> also compile with the language extentions disabled...

Yep. VC6.5 does not implement __if_exists. I used the
compile-time-constants implementation that already exists with the
vintage implementation, so now it relies on two compiler bug/features
+ ODR in stead of one compiler bug/feature + a compiler extension :)

> >
> > I guess this deprecates most of the vintage code, since that was
> > implemented in order to allow support of VC6.5 and VC7.0.
> >
> And also removes half of the users from the compliant implementation.
> Really, how many are left if gcc has native typeof, and vc7 uses this
> stuff??
> 
> Well, competition is competition...
> 
> I think we should contact the guy and ask if he is interested in working
> with us.  If not -- we can use his code, but I think this would be fair to
> ask.   I'll do this later today.

Good idea. Do that

Regards
Peder

> 
> Regards,
> Arkadiy
> 
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