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From: jsdy@hadron.UUCP (Joseph S. D. Yao)
Newsgroups: net.lang.c
Subject: Re: Passing Multidimensional Arrays
Message-ID: <133@hadron.UUCP>
Date: Thu, 19-Dec-85 02:06:08 EST
Article-I.D.: hadron.133
Posted: Thu Dec 19 02:06:08 1985
Date-Received: Fri, 20-Dec-85 05:51:37 EST
References: <138@brl-tgr.ARPA> <365@codas.UUCP> <34@dg_rtp.UUCP> <397@codas.UUCP>
Reply-To: jsdy@hadron.UUCP (Joseph S. D. Yao)
Organization: Hadron, Inc., Fairfax, VA
Lines: 31
Keywords: arrays, pointers, arguments, repeat, repeat
Summary: Arrays are not Pointers are not Arrays are not ...

(First off, the original code fragment, while syntactically legal C,
was most definitely semantically incorrect.)

In article <397@codas.UUCP> mikel@codas.UUCP (Mikel Manitius) writes:
>                             ... Then explain, if you don't mind, how
>the compiler knows the dimensions of argv in the following construct:
>#include <stdio.h>
>main(argc, argv)
>int	argc;
>char	*argv[];
>{
>	int	i, j;
>	for(j=0;argv[j][0] != '\0';j++) {
>		for(i=0;argv[j][i] != '\0';i++)
>			putc(argv[j][i], stdout);
>		putc('\n', stdout);
>		}
>}

Easy.  Argv is  n o t  a 2-D array.  It is an array of pointers.
If my yesterday's article on the subject hasn't arrived at your
machine yet, wait a couple days and then  m a i l  to me to see
whether I can retrieve a copy for you.

If anyone kept a copy of my 100+ line diatribe on arrays and
pointers, and why people confuse them so, from a year ago, wouldst
please mail a copy to me?  I'm afraid I didn't keep a copy, and
if this line of discussion keeps up, I'm going to need it.	;-}
-- 

	Joe Yao		hadron!jsdy@seismo.{CSS.GOV,ARPA,UUCP}