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Re: preprocessor bug: @ + MACRO does not work in gcc-3.0


Zack Weinberg wrote:-

> I agree with you that (2) is a bad solution.  However, I don't like
> (1) either.  It is a major quiet change to the semantics of Objective
> C.  I have no way of evaluating how widespread this sort of thing is,
> so I'm going to be really conservative.
> 
> Also, looking at cpplex.c and c-parse.in, I think going for (3) might
> actually simplify the code.  What do you think of the appended patch?
> With it, the preprocessor crunches Nicola's test case correctly.
> However, this only exposes another bug - see separate report.

Two things:

1) Is it a good idea to introduce yet another token type, when CPP_OTHER
   would do (from what I can see)?

2) Don't you just drop stray @ tokens, in e.g.

   int x = y @ + z;

without a diagnostic?  (And what about in C?)

Neil.


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