Subject: Re: strlen on a NULL
From: [email-masked]

14 May 1998 00:20:47 -0700
Message-ID: <H00000b00005d079.cygnus.gnu-win32@MHS>
References: <Pine.SUN.3.91.980513093003.7451F-100000@terra>
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Cc: [email-masked]

> This is quite wrong for most unixes. 
> 
> cat test.c
> main()
> {
>   char *c = (char *) 0;
>   char d;
> 
>   d = *c;
> }
> 
> bash$ cc test.c
> bash$ ./a.out
> Segmentation fault (core dumped)
> on FreeBSD, linux, solaris, sunos ...
> 
> Anyway, check the kernel source, and see the part where they make page
> 0 unreadable and unwriteable. Stupid exceptions: some SvR4 
> implementations, and of course stupid old AIX.

My HPUX does not core dump!

  Kjeld

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