Messages in this thread | | | Subject | Re: [PATCH] C undefined behavior fix | From | Florian Weimer <> | Date | Fri, 04 Jan 2002 10:05:07 +0100 |
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Paul Mackerras <paulus@samba.org> writes:
> One of the reasons why C is a good language for the kernel is that its > memory model is a good match to the memory organization used by the > processors that linux runs on. Thus, for these processors, adding an > offset to a pointer is in fact simply an arithmetic addition.
But this is not the memory model of C! Adding an offset to a pointer is an operation involving objects defined by the C language, and not machine registers. Sometimes, this makes a noticeable difference. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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