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From: jim@ism780.UUCP
Newsgroups: net.lang.c
Subject: Re: Re: i = i * f  *vs*  i *= f (Not a b - (nf)
Message-ID: <141@ism780.UUCP>
Date: Sun, 22-Apr-84 00:03:07 EST
Article-I.D.: ism780.141
Posted: Sun Apr 22 00:03:07 1984
Date-Received: Mon, 23-Apr-84 00:58:37 EST
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#R:ecsvax:-231000:ism780:12500003:000:539
ism780!jim    Apr 20 18:30:00 1984

As Dennis Ritchie pointed out the last time this came up (quite recently),
it is a bug, and it is amazing how hard people will try to convince
themselves and others that the compiler must be right, even though the
manual clearly says that "l op= r" is equivalent to "l = l op r", except
that l is only evaluated once (which means that if l has side-effects,
they only happen once; how this can be interpreted as meaning that
conversions should happen differently is beyond me).

-- Jim Balter, Interactive Systems (decvax!yale-co!ima!jim)