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Re: CVS update: MODIFIED: include ...

From: Karl Fogel <kfogel_at_collab.net>
Date: 2001-05-22 20:52:46 CEST

Branko Čibej <brane@xbc.nu> writes:
> >> * svn_types.h: Don't use ## when concatenating string tokens.
> >>
> >
> >Thanks, Joe! I took another look at K&R, and learned why the ## was
> >unnecessary for this simple case.
> >
> It's not unnecessary, it's simply wrong. The concatenated result must
> be a valid preprocessing token, which "a""b" is not.Preprocessing
> tokens are parsed in translation phase 3, and string literals aren't
> concatenated till phase 6. See, 6.4p1 and in the C
> standard.

Yes, but it worked. :-)

> Ahh, it feels so good to be a language lawyer! :-)

My jealousy knows know bounds. You will get an ABR if you try to
fathom its extent.

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Received on Sat Oct 21 14:36:30 2006

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