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From: Neil Booth <neil@daikokuya.co.uk> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, Subject: Re: preprocessor/9764: Varargs macro extension incorrectly expands if the varargs argument is the macro itself Date: Thu, 20 Feb 2003 06:56:00 -0000 [thread overview] Message-ID: <20030220065601.10175.qmail@sources.redhat.com> (raw) The following reply was made to PR preprocessor/9764; it has been noted by GNATS. From: Neil Booth <neil@daikokuya.co.uk> To: Ryan Mallon <rpm31@student.canterbury.ac.nz> Cc: gcc-gnats@gcc.gnu.org, gcc-bugs@gcc.gnu.org Subject: Re: preprocessor/9764: Varargs macro extension incorrectly expands if the varargs argument is the macro itself Date: Thu, 20 Feb 2003 06:49:17 +0000 Ryan Mallon wrote:- > #define func(a, varargs...) _func(a, ##varargs) > > The problems occurs when the macro name itself is used in the varargs > part: e.g > > func(a, func(b, c)); > > Incorrectly expands to: > > _func(a, func(b, c)); > > Without the token paste opperator in the defintion it works as expected, > but then I cannot have varargs=0. Im working with a large amount of > existing code, so I cannot alter the actual calls on the macro definition. What makes you think it's incorrect? Neil.
next reply other threads:[~2003-02-20 6:56 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2003-02-20 6:56 Neil Booth [this message] -- strict thread matches above, loose matches on Subject: below -- 2003-02-20 0:06 Ryan Mallon 2003-02-19 23:48 neil 2003-02-19 22:16 rpm31
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