Re: [patch cr 2/4] [RFC] syscalls, x86: Add __NR_kcmp syscall v7

[H. Peter Anvin]

On 01/30/2012 11:58 AM, Jonathan Corbet wrote:
> 
> That's a cute trick, but do we know that every compiler that will ever see
> this code will use 1 for a true integer comparison?  Simply spelling it
> out with an if statement might be more robust, just as efficient, and, at
> the same time, easier for others to understand.
> 

This has been the case in C from the very beginning and is guaranteed by
the C standard.  The number of places which will break if this isn't
true is enormous.

	-hpa

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