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From: nol2321@dsacg2.dsac.dla.mil (Jim Dunn)
Newsgroups: comp.lang.c
Subject: ** help...
Summary: please declare and define my **array...
Message-ID: <2409@dsacg2.dsac.dla.mil>
Date: 20 Aug 90 21:37:39 GMT
Followup-To: jdunn@dsac.dla.mil
Organization: Defense Logistics Agency Systems Automation Center, Columbus
Lines: 41

Well, no one took me up on my offer of checking out the Curses Source I've
been working on, so I'll ask a "more direct and specific" question...

Why can't I do the following?!?  (C'mon you gurus...)

---Cut Here---

#include <stdio.h>

typedef struct _window {
	int x;
	int y;
	int **array;
	int beg_x;
	int beg_y;
	int max_x;
	int max_y;
} WINDOW;

main()
{
	int x, xL = 10;
	WINDOW *w1;

	w1 = (WINDOW *) malloc(sizeof(WINDOW));

/* the problem is next */
	w1->array = malloc( xL * sizeof(int) );
/* isn't the above line legal, or how can I allocate mem for the storage */

	for(x=0;x < xL; x++)
		w1->array[x] = (int *) malloc( 10 * sizeof(int *) );

}

This is setup for, let's say, a 10 x 10 matrix of ints, OK?

It'll compile ok, but it'll lock up the machine...  (at least on the PC).

Jim
jdunn@dsac.dla.mil