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Date: Tue, 22 Nov 2011 15:52:39 +0100
From: Joerg Sonnenberger <joerg@britannica.bec.de>
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Subject: Re: svn commit: r227812 - head/lib/libc/string
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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.

Joerg