Re: [PATCH] strlen

Alan Cox (alan@lxorguk.ukuu.org.uk)
Thu, 28 Oct 1999 22:41:36 +0100 (BST)

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> This, I think, is a problem on i386. You _cannot_ read beyond the end of the
> string (might be on an other, unmapped page), but you don't know that until
> you do, when doing 4 bytes at a time. I mean: You can only know that you
> went to far...

If you do the start then do aligned loads (always a good idea) on 4 byte
boundaries you wont cross a page by suprise.

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