From:	fine AT bnl DOT gov (Valery Fine)
Subject:	Re: strlen on a NULL
13 May 1998 05:58:15 -0700 :
Message-ID:	<199805121640.MAA19933.cygnus.gnu-win32@mail.bnl.gov>
References:	<3557E6C4 DOT EF2F27B3 AT kiwiplan DOT co DOT nz>
Reply-To:	fine AT mail DOT cern DOT ch
To:	Ian Collins <ian AT kiwiplan DOT co DOT nz>
Cc:	gnu-win32 AT cygnus DOT com

On 12 May 98 at 18:05, Ian Collins wrote:


> If I do a strlen on a NULL pointer I get a coredump.
> I have the same code running on a few *other* Unix machines with
> exhibiting this behaviour. OK, so I could tidy it up, but I wondered
> is this an oversight or the correct behaviour?


  This depends of the implementation of str* "family".

  In general one should NOT assume this "family" does accept ZERO 
pointer.  (From our experience of supporting 12 diff UNIX platforms, 
Win 95 /NT (Symantec ,MSVC) it is 50 % / 50 % ).

  Hope this helps ;-)
                Valery

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Dr. Valeri Faine (Fine)
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