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From: brandis@inf.ethz.ch (Marc Brandis)
Newsgroups: comp.lang.c
Subject: Re: using !
Message-ID: <19161@neptune.inf.ethz.ch>
Date: 21 Dec 90 13:05:53 GMT
References: <009417DC.37A9DCA0@cemmva.cem.msu.edu>
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Reply-To: brandis@inf.ethz.ch (Marc Brandis)
Organization: Departement Informatik, ETH, Zurich
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In article <009417DC.37A9DCA0@cemmva.cem.msu.edu> heroux@cemmva.cem.msu.edu (Brett Heroux) writes:
>
>Is !(a > b) portable? 

Yes!

> slower or faster than  a <= b?

Exactly the same for every compiler that I know of. However, if could be both
ways round, but it is very likely that you will even get the same code for both
statements. When you should ever find a place where you have to care about it,
it is probably time to use assembly for this piece of code -:) 


Marc-Michael Brandis
Computer Systems Laboratory, ETH-Zentrum (Swiss Federal Institute of Technology)
CH-8092 Zurich, Switzerland
email: brandis@inf.ethz.ch