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From: Neil Booth <neil@daikokuya.co.uk>
To: Stephen Lindholm <lindholm@CS.Stanford.EDU>
Cc: gcc@gcc.gnu.org
Subject: Re: Change in preprocessor behavior
Date: Mon, 30 Dec 2002 20:54:00 -0000	[thread overview]
Message-ID: <20021230225110.GC12512@daikokuya.co.uk> (raw)
In-Reply-To: <Pine.GSO.4.21.0212301419040.17036-100000@Xenon.Stanford.EDU>

Stephen Lindholm wrote:-

> thrush:~% cpp test2
> # 1 "test2"
> 
>       
> struct command commands[] =
> {
>   { #quit, quit ## _command },
>   { #help, help ## _command },
> };

Contrary to your claim, I suspect you're using cpp -traditional, no?

Traditional preprocessors did not support # and ##, and 3.1 is more
"correct" in this respect.  FWIW 3.3 has another new implementation of
traditional preprocessing which is the most faithful of GCC's
implementations to true traditional preprocessing.

Neil.

  reply	other threads:[~2002-12-30 22:51 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-12-30 20:53 Stephen Lindholm
2002-12-30 20:54 ` Neil Booth [this message]
2002-12-30 20:54   ` Stephen Lindholm
2003-01-02 21:04   ` Devang Patel
2002-12-30 20:54 ` Neil Booth
2003-01-02 20:42 ` Mike Stump
2003-01-02 21:02   ` Devang Patel
2003-01-04 20:19 ` Zack Weinberg
2002-12-31 10:24 Martin York
2022-06-21  0:34 Dave Blanchard
2022-06-21  7:28 ` Richard Biener
2022-06-21 12:57   ` Dave Blanchard

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