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From: gwyn@brl-tgr.ARPA (Doug Gwyn <gwyn>)
Newsgroups: net.lang.c
Subject: Re:  Re:  structure references in header files
Message-ID: <557@brl-tgr.ARPA>
Date: Wed, 11-Dec-85 10:16:14 EST
Article-I.D.: brl-tgr.557
Posted: Wed Dec 11 10:16:14 1985
Date-Received: Fri, 13-Dec-85 20:03:59 EST
References: <547@brl-tgr.ARPA>
Organization: Ballistic Research Lab
Lines: 20

OOPS!  Please ignore my previous posting on this, which
had the member types misdeclared.  The idea was right but
I was distracted while typing it.  Here is the correct version:


The approved way to declare two structs each of which has a
member that is a pointer to the other type of struct, is:

struct a;

struct b {
	struct a *ap;	/* BUG FIX */
	};

struct a {
	struct b *bp;	/* BUG FIX */
	};

Yes, I know it looks unbelievable.  This kludge is present
precisely to handle this kind of problem.