Date: Sun, 17 May 2009 14:32:02 +0200 From: Christoph Mallon <christoph.mallon@gmx.de> To: Stanislav Sedov <stas@FreeBSD.org> Cc: sobomax@freebsd.org, freebsd-hackers@freebsd.org, rdivacky@freebsd.org, ed@freebsd.org, marius@alchemy.franken.de Subject: Re: C99: Suggestions for style(9) Message-ID: <4A1003C2.8070901@gmx.de> In-Reply-To: <20090517145331.fda0f91f.stas@FreeBSD.org> References: <49F4070C.2000108@gmx.de> <20090501112239.GA23199@alchemy.franken.de> <49FADEF3.5010106@gmx.de> <20090501.082020.698246310.imp@bsdimp.com> <20090517145331.fda0f91f.stas@FreeBSD.org>
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Stanislav Sedov schrieb:
> On Fri, 01 May 2009 08:20:20 -0600 (MDT)
> "M. Warner Losh" <imp@bsdimp.com> mentioned:
>> It is a debugging aid, but one of dubious value for a far more
>> fundamental reason:
>>
>> return;
>>
>> will break any macro.
>>
>
> You can use variadic marcos in this case if the piece of code debugged
> uses void returns.
No, you cannot. Function like macros with ellipsis ("variadic macros")
cannot be treated as object like macros. See ISO/IEC 9899:1999 (E)
§6.10.3:4.
Christoph
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