Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!bywater!arnor!arnor!marc From: marc@marc.watson.ibm.com (Marc Auslander) Newsgroups: comp.unix.aix Subject: Re: Aligned access to c structures (how to avoid) Message-ID: Date: 14 Feb 91 14:13:58 GMT References: <5053@lure.latrobe.edu.au> Sender: news@arnor.uucp (NNTP News Poster) Organization: IBM T.J. Watson Research Center, Hawthorne, New York Lines: 9 In-Reply-To: CCHD@lure.latrobe.edu.au's message of 13 Feb 91 16:45:17 GMT The trouble with the sort of packing you propose is that it does not provide "left to right equivalence". In other words, adding something to the end of a structure can change the mappings of fields that precede it. Consider the trouble this causes when you need to extend a structure without recompiling the world. -- Marc Auslander