Date: Tue, 10 Sep 2002 19:09:26 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: jmallett@FreeBSD.org Cc: fanf@FreeBSD.org, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/usr.bin/uudecode uudecode.c Message-ID: <20020910.190926.94553760.imp@bsdimp.com> In-Reply-To: <20020910145812.B78992@FreeBSD.org> References: <200209102053.g8AKrkvc055026@freefall.freebsd.org> <20020910145812.B78992@FreeBSD.org>
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In message: <20020910145812.B78992@FreeBSD.org> Juli Mallett <jmallett@FreeBSD.org> writes: : * De: Tony Finch <fanf@FreeBSD.org> [ Data: 2002-09-10 ] : [ Subjecte: cvs commit: src/usr.bin/uudecode uudecode.c ] : > fanf 2002/09/10 13:53:46 PDT : > : > Modified files: : > usr.bin/uudecode uudecode.c : > Log: : > Style: Don't treat pointers as booleans. : : Do we have a firm style(9) ruling on that? There's like two cases I know : of where it's justified, both are code that return pointers, and use 0 / false : internally. I loathe if(ptr) almost as much as if(foo &bitmask) and if(!strcmp) That's lots of places in the kernel that use 'if (ptr)' or 'if (!ptr)' but a lot of that code is new. Style(9) does say, however: Test pointers against NULL, e.g., use: (p = f()) == NULL not: !(p = f()) So the documented, preferred style is to use if (p != NULL) rather than if (p). Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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