Path: utzoo!mnetor!uunet!husc6!bbn!schooler@oak.bbn.com
From: schooler@oak.bbn.com (Richard Schooler)
Newsgroups: comp.lang.misc
Subject: Re: From Modula to Oberon
Message-ID: <22162@bbn.COM>
Date: 16 Mar 88 15:04:21 GMT
References: <2827@enea.se> <1557@pasteur.Berkeley.Edu> <3764@bloom-beacon.MIT.EDU> <7747@sol.ARPA> <1131@PT.CS.CMU.EDU>
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Reply-To: schooler@oak.bbn.com (Richard Schooler)
Organization: BBN Advanced Computers, Inc.
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In-reply-to: edw@IUS1.CS.CMU.EDU (Eddie Wyatt)



  The debate about CLU iterators misses an important point: CLU iterators are
coroutines, which C does not have.  The implication is that per-iteration state
is nicely hidden in CLU ("on the stack" in the coroutine local variables), and
has to be explicitly managed in C (or any other coroutine-free language) by
putting the state into globals or making the user hang on to the state.

	-- Richard
	schooler@bbn.com