🚀 go-pugleaf

> > It may be worth noting that all integer constants represent positive values

[He means non-negative, of course.]

> > (perhaps there are theoretical circumstances where a character constant
> > could end up negative). ...

> Could you quote a reference for this please?  (Genuine request for
> enlightenment - not an attempt to dispute it.)  I've looked at the
> standard, and clearly the syntax of decimal integer constants excludes
> the possibility of them being negative, but I can't find anywhere where
> it says that hex constants must be interpreted as positive.

But exactly the same reasoning applies in both cases!  A hexadecimal
constant is just a whole number written in base 16, with 0x or 0X tacked
on the front -- exactly as a decimal constant is a whole number written
in base 10.  Nothing is said in 6.1.3.2/3.1.3.2 about any sort of negation.
-- 
Mark Brader              |   "I love talking about nothing.
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My text in this article is in the public domain.