Date: Thu, 29 Jun 2006 18:53:34 +0200 (CEST) From: Harti Brandt <hartmut.brandt@dlr.de> To: Johannes Weiner <hnazfoo@googlemail.com> Cc: freebsd-hackers@freebsd.org Subject: Re: Return value of malloc(0) Message-ID: <20060629185249.C55888@beagle.kn.op.dlr.de> In-Reply-To: <20060629162319.GA94921@leiferikson.flosken.lan> References: <20060628181045.GA54915@curry.mchp.siemens.de> <20060629054222.GA92895@leiferikson.flosken.lan> <m3bqsceyf2.fsf@merlin.emma.line.org> <20060629162319.GA94921@leiferikson.flosken.lan>
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On Thu, 29 Jun 2006, Johannes Weiner wrote: JW>On Thu, Jun 29, 2006 at 06:09:37PM +0200, Matthias Andree wrote: JW> JW>> The value returned from malloc(0) must not be dereferenced whatever it JW>> was. It was 0x800, which doesn't count as "failure". JW> JW>But this would be appropriate for catching the error: JW> JW>if ((foo = malloc(0)) == foo) JW> /* make noise */ JW> JW>wouldn't it? Wouldn't it rather invoke undefined behaviour? harti
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