Date: Tue, 22 Nov 2011 15:52:39 +0100 From: Joerg Sonnenberger <joerg@britannica.bec.de> To: svn-src-all@freebsd.org Subject: Re: svn commit: r227812 - head/lib/libc/string Message-ID: <20111122145239.GB19875@britannica.bec.de> In-Reply-To: <8B1C6EE4-A351-44A6-AC8A-DC53779CD380@FreeBSD.org> References: <201111220250.pAM2oPWC070856@svn.freebsd.org> <CAMBSHm8HfW-XTSk9zQda4vDmbrzyEG_vnydb5JZyHaNh2rF4gw@mail.gmail.com> <20111122210422.E8674@besplex.bde.org> <8B1C6EE4-A351-44A6-AC8A-DC53779CD380@FreeBSD.org>
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On Tue, Nov 22, 2011 at 02:20:15PM +0000, David Chisnall wrote: > In this case, either | or || is fine, because neither reads any memory > or has side effects so | and || are equivalent to the compiler, but > the use of | tells a human reading the code that the order is unimportant. The use of | is just more obscure. The compiler can easily interfere here that the execution order is irrelevant as the statements are side effect free. Joerghome | help
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