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From: davidsen@sungod.crd.ge.com (William Davidsen)
Newsgroups: comp.lang.c
Subject: Re: Using data types before they are declared.
Message-ID: <867@crdgw1.crd.ge.com>
Date: 19 Jun 89 17:51:13 GMT
References: <10268@watcgl.waterloo.edu> <548@corona.pb> <18137@mimsy.UUCP>
Sender: news@crdgw1.crd.ge.com
Reply-To: davidsen@crdos1.UUCP (bill davidsen)
Organization: General Electric Corp. R&D, Schenectady, NY
Lines: 24

In article <18137@mimsy.UUCP> chris@mimsy.UUCP (Chris Torek) writes:

| The best approach is to ignore `typedef' completely, give all
| structures and unions tags, and add typedefs afterward if you
| wish.  Thus:

  definitions are sometimes useful to reduce typing as well. For
instance in a simple linked list declaration:

	#define D_litem struct _litem

	D_litem {
	  int xa[4], xb[4];
	  D_litem *fwd, *back;
	  float lo_lim, hi_lim;
	  D_litem *execptions;
	};
	typedef D_litem litem

  This is a real typing saver when a number of structs include one
another or pointers to one another.
	bill davidsen		(davidsen@crdos1.crd.GE.COM)
  {uunet | philabs}!crdgw1!crdos1!davidsen
"Stupidity, like virtue, is its own reward" -me