Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uunet!sdrc!thor!scjones
From: scjones@thor.UUCP (Larry Jones)
Newsgroups: comp.lang.c
Subject: Re: initializing static mutually referencing structures
Message-ID: <186@thor.UUCP>
Date: 21 Sep 90 13:16:09 GMT
References: <1287@granjon.UUCP>
Distribution: usa
Organization: SDRC, Cincinnati
Lines: 23

In article <1287@granjon.UUCP>, jhpb@granjon.UUCP (Joseph H. Buehler) writes:
> I have some structures that refer to each other, that I want to be
> static.  The compiler doesn't like the following because it doesn't know
> what y is when it's initializing x:
> 
> 	static struct xtag x = {&y};
> 	static struct ytag y = {&x};
> 
> Does ANSI C have any way to do this?

	static struct ytag y;		/* tentative definition */
	static struct xtag x = {&y};
	static struct ytag y = {&x};	/* actual definition */

> For now, I had to drop the static and put an extern at the top of the file

Which is what you'll have to do for most non-ANSI compilers.
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