Date: Tue, 01 May 2001 08:45:08 +0200 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: Bruce Evans <bde@zeta.org.au> Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/fs/hpfs hpfs_vnops.c Message-ID: <917.988699508@critter> In-Reply-To: Your message of "Tue, 01 May 2001 15:30:28 %2B1000." <Pine.BSF.4.21.0105011527590.32403-100000@besplex.bde.org>
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Can someone take this up with the GCC people please ? Clearly this is simple enough that you don't need to be a FreeBSD kernel-wiz to deal with it... Poul-Henning In message <Pine.BSF.4.21.0105011527590.32403-100000@besplex.bde.org>, Bruce Ev ans writes: >On Tue, 1 May 2001, Poul-Henning Kamp wrote: >> >This is because the pointer was supposed to be, and was, initialized by >> >VOP_BMAP(). gcc must assume that foo(&bar) initializes `bar'. >> >> But VOP_BMAP() was not called in all cases: > >I see. gcc doesn't even spot the error when the function that might >initialize the variable is _never_ called: > >--- >void foo(int *); > >int >main(void) >{ > int x; > > if (0) > foo(&x); > return (x); >} >--- > >Bruce > > -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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