Date: Sun, 4 May 2008 16:45:32 +0200 From: Roland Smith <rsmith@xs4all.nl> To: Patrick Clochesy <pcloches@gmail.com> Cc: Unga <unga888@yahoo.com>, "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>, Peter Boosten <peter@boosten.org> Subject: Re: Variable arg function question Message-ID: <20080504144532.GA56965@slackbox.xs4all.nl> In-Reply-To: <8FF3737F-1292-4A19-8A7D-789D8DD70CBE@gmail.com> References: <336540.36159.qm@web57014.mail.re3.yahoo.com> <481DA10B.30903@boosten.org> <8FF3737F-1292-4A19-8A7D-789D8DD70CBE@gmail.com>
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--Qxx1br4bt0+wmkIi Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, May 04, 2008 at 07:02:36AM -0700, Patrick Clochesy wrote: > What about using a macro (...) in front of the function to csll it which= =20 > passes __VARARGS__, NULL to ensure there is always a trailing NULL? I thi= nk=20 > this would at least work in GCC... Can' test on my phone though. That's a good idea. If one uses __VA_ARGS__ instead of __VARARGS__, it should work with any C99 compliant compiler, including gcc. The good thing about variadic macros in C99[1] is that you don't need a first argument. Roland [1: http://en.wikipedia.org/wiki/Variadic_macro] --=20 R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) --Qxx1br4bt0+wmkIi Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAkgdzAwACgkQEnfvsMMhpyVeCACgoZJsIPd1rSAWHawZFjyDWkTO ZdsAoJr4U+57J4rPBvBoov5iqoTWTaYW =sVlN -----END PGP SIGNATURE----- --Qxx1br4bt0+wmkIi--
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