Article View: comp.sw.components
Article #174Re: Assignment in Ada, etc.
From: Ted Dunning
Date: Wed, 27 Sep 1989 19:30
Date: Wed, 27 Sep 1989 19:30
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2131 bytes
In article <6592@hubcap.clemson.edu> billwolf%hazel.cs.clemson.edu@hubcap.clemson.edu (William Thomas Wolfe, 2847 ) writes:
From ted@nmsu.edu (Ted Dunning):
> one of the problems is that an in parameter is still a reference which
> must be accounted for. since there is no mechanism to handle
> initialization distinct from assignment, it is difficult to write a
> robust reference counting collection mechanism.
OK, I agree. Nobody ever does this anyway, and I can't imagine
why anyone would want to.
it is done commonly and easily in c++.
> hmmmm..... seems to me that mister wolfe hasn't done much lisp
> programming if he thinks that lisp has no concept of data typing.
> perhaps he should read CLtL a bit. particularly chapter 2 (data
> types), chapter 4 (type specifiers), section 6.2 (data type
> predicates), chapter 9 (declarations), as well as chapters 12, 13, 14,
> 15, 16, 17, 18 and 19 which describe the builtin data types and type
> extension methods available to the common lisp programmer.
OK, I'm not up on the very latest versions of Lisp (of which I
hear that there are many). How about multitasking capabilities?
trivial and lucid in lisps that support continuations and/or engines.
try scheme, allegro common lisp, symbolics common lisp, or xerox's
interlisp offerings. if you want to play, grab a copy of one of the
pd interepreters from the net.
--
ted@nmsu.edu
remember, when extensions and subsets are outlawed,
only outlaws will have extensions or subsets
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!ginosko!gem.mps.ohio-state.edu!uwm.edu!rutgers!cmcl2!lanl!opus!ted From: ted@nmsu.edu (Ted Dunning) Newsgroups: comp.sw.components Subject: Re: Assignment in Ada, etc. Message-ID: <TED.89Sep27133034@aigyptos.nmsu.edu> Date: 27 Sep 89 19:30:34 GMT References: <TED.89Sep25230752@kythera.nmsu.edu> <6592@hubcap.clemson.edu> Sender: news@nmsu.edu Organization: NMSU Computer Science Lines: 36 In-reply-to: billwolf%hazel.cs.clemson.edu@hubcap.clemson.edu's message of 26 Sep 89 19:19:44 GMT