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From: vmicro1@ucbtopaz.UUCP
Newsgroups: net.lang.c
Subject: Re: Must useless expressions be evaluated?
Message-ID: <317@ucbtopaz.CC.Berkeley.ARPA>
Date: Thu, 13-Oct-83 22:43:51 EDT
Article-I.D.: ucbtopaz.317
Posted: Thu Oct 13 22:43:51 1983
Date-Received: Sun, 16-Oct-83 06:51:07 EDT
References: <187@bbncca.ARPA>
Organization: Univ. of Calif., Berkeley CA USA
Lines: 9


	I think useless expressions must be evaluated, simply because there is
no syntactic criterion to determine the uselessness of any expression. For
example,
	(i=j)+something()+k++;
is not syntactically different from
	(i=j)+1+k++;
but something() probably has side effects.