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| Date: | Sat, 11 Jan 2003 12:09:50 +0300 |
| From: | "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il> |
| Sender: | halo1 AT zahav DOT net DOT il |
| To: | djgpp-workers AT delorie DOT com |
| Message-Id: | <2110-Sat11Jan2003120949+0200-eliz@is.elta.co.il> |
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| In-reply-to: | <200301102322.h0ANMfu27001@brother.ludd.luth.se> |
| (lnobody AT delorie DOT com) | |
| Subject: | Re: strlcat, strlcpy, revision 2 [PATCH] |
| References: | <200301102322 DOT h0ANMfu27001 AT brother DOT ludd DOT luth DOT se> |
| Reply-To: | djgpp-workers AT delorie DOT com |
| Errors-To: | nobody AT delorie DOT com |
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> From: lnobody AT delorie DOT com
> Date: Sat, 11 Jan 2003 00:22:41 +0100 (MET)
> >
> > What does this mean, exactly? The specific implementation we have is
> > deterministic, right? So it is possible to tell exactly what does it
>
> Probably. I think he's talkning about C standard undefined behaviour.
I don't like citing undefined behavior in documentation that covers
specific implementations. A specific implementation has specific,
defined behavior, and IMHO we should tell the programmer what that is.
> That's a good idea. But might not say much ("if they do, your code
> might do anything; at least one of the effects being writing over
> memory way out of bounds").
Is this really what will happen? I always thought strcpy and friends
handled overlapping buffers correctly. If that's not true, similar
remarks should be added to the docs of strcpy and strcat.
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