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000113_icon-group-sender _Mon Dec 6 17:34:35 1993.msg
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1994-02-02
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820b
Received: by cheltenham.cs.arizona.edu; Tue, 14 Dec 1993 17:24:27 MST
Date: 6 Dec 93 17:34:35 GMT
From: walter!flaubert!norman@uunet.uu.net (Norman Ramsey)
Organization: Bellcore, Morristown NJ
Subject: Re: two language questions
Message-Id: <CHMJHn.7x0@walter.bellcore.com>
References: <2dd1v7$p98@caslon.cs.arizona.edu>, <CHA02z.4r1@walter.bellcore.com>, <2drrmo$iu3@caslon.cs.arizona.edu>
Sender: icon-group-request@cs.arizona.edu
To: icon-group@cs.arizona.edu
Status: RO
Errors-To: icon-group-errors@cs.arizona.edu
>NR> every insert(s, !ss)
>
>Actually, I would change the last line to s ++:= ss,
Different semantics. I get bitten by this almost every time I write
code that's supposed to have a side effect on a set, such as an analog
of insert(). It's a pity since ++:= is much clearer.