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From: wirzeniu@klaava.Helsinki.FI (Lars Wirzenius)
Newsgroups: comp.lang.c
Subject: Re: argv[] terminated by a NULL pointer?
Message-ID: <1991Jun23.101340.10908@klaava.Helsinki.FI>
Date: 23 Jun 91 10:13:40 GMT
References: <12187@hub.ucsb.edu>
Organization: University of Helsinki
Lines: 12

In article <12187@hub.ucsb.edu> angst@cs.ucsb.edu (Hopelessly in love w/Donna Reed) writes:
>So I guess my question is: am I right in my belief that argv[] 
>is not *guaranteed* to be terminated by a NULL pointer?  

The first edition of K&R doesn't say anything (as far as I can see)
about argv being terminated with NULL, so I think you're right. A quick
check with VMS C gives an access violation, cc and gcc on SunOS do have
a terminating NULL, however.

Also, the ANSI standard guarantees that argv[argc] == NULL.
-- 
Lars Wirzenius     wirzeniu@cc.helsinki.fi