Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!rutgers!cmcl2!adm!smoke!gwyn
From: gwyn@smoke.BRL.MIL (Doug Gwyn)
Newsgroups: comp.lang.c
Subject: Re: mutual reference in structures
Message-ID: <10252@smoke.BRL.MIL>
Date: 11 May 89 21:39:03 GMT
References: <6712@medusa.cs.purdue.edu> <1822@ubu.warwick.UUCP> <2346@wheat-chex.ai.mit.edu>
Reply-To: gwyn@brl.arpa (Doug Gwyn)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 11

In article <2346@wheat-chex.ai.mit.edu> jym@wheaties.ai.mit.edu (Jym Dyer) writes:
-VAX C accepts this (which seems wrong to me):
-	typedef struct
-	{
-	  struct NODE_T *  flink_p;
-	  struct NODE_T *  blink_p;
-	  char  data[512];
-	}  NODE_T;

That's valid, but "struct NODE_T" is still an incomplete type afterwards.
The final NODE_T is the type name being defined, not a structure tag.