[Bug preprocessor/9449] UCNs not recognized in identifiers (c++/c99)

[Neil Booth]

geoffk at gcc dot gnu dot org wrote:-

> 
> ------- Additional Comments From geoffk at gcc dot gnu dot org  2005-09-15 22:34 -------
> (In reply to comment #39)
> > Another reason why spelling needs preserving (in addition to implementing #
> > correctly) is for the constraints on duplicate macro definitions.
> > 
> > #define foo \u00c1
> > #define foo \u00C1
> > 
> > is invalid (different spelling in replacement), as is
> 
> We discussed this on the list and decided that this was probably a defect in the C standard, since the 
> Rationale says that the kind of implementation we have now is supposed to be permitted, and jsm said 
> he'd file a DR.  How's that going?

I very much doubt this is a defect.  Just because it doesn't fit your
implementation...

Neil.