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Re: Warning for trigraphs in comment?
Joe Buck wrote:-
> On Mon, May 19, 2003 at 04:44:26PM +0200, Gabriel Dos Reis wrote:
> > What is happening with current GCC in production use is that GCC
> > choosed NOT to warn for trigraphs in comment even if -Wtrigraph.
>
> Ideally GCC should not warn about trigraphs in comments, ever, unless that
> trigraph can change the meaning of the program.
That is what 3.4 does. It's not as easy as you might think to do this
efficiently, trigraphs being a PITA efficiency-wise anyway, never mind
doing long-winded checks to see if something constitutes a change in
the meaning of the program.
Basically 3.4 warns about trigraph escaped newlines in comments, even
in the middle of a big block comment, but nothing else.
Neil.