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From: peter@ficc.uu.net (Peter da Silva)
Newsgroups: comp.lang.c
Subject: Re: swap(x,y)
Message-ID: <6029@ficc.uu.net>
Date: 5 Sep 89 12:07:58 GMT
References: <MYwDEFy00WB842JEUx@andrew.cmu.edu> <8350@boring.cwi.nl> <1560@l.cc.purdue.edu>
Organization: Xenix Support, FICC
Lines: 14

In article <1560@l.cc.purdue.edu>, cik@l.cc.purdue.edu (Herman Rubin) writes:
> In article <10790@riks.csl.sony.co.jp>, diamond@csl.sony.co.jp (Norman Diamond) writes:
> >    *(int*)&x

> What if x is in a register?

What if it is? This is a quality-of-implementation issue. A good optimiser
will cancel out all the extra loads and stores. I'm sure you wouldn't bother
with a compiler with a poor optimiser...
-- 
Peter da Silva, *NIX support guy @ Ferranti International Controls Corporation.
Biz: peter@ficc.uu.net, +1 713 274 5180. Fun: peter@sugar.hackercorp.com. `-_-'
"The Distribution: field on the header has been modified so as not to      'U`
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