Path: utzoo!yunexus!geac!daveb
From: daveb@geac.UUCP (David Collier-Brown)
Newsgroups: comp.arch
Subject: Re: FORTRAN Horror
Message-ID: <2527@geac.UUCP>
Date: 4 Apr 88 13:06:22 GMT
Article-I.D.: geac.2527
Posted: Mon Apr  4 09:06:22 1988
References: <24861@yale-celray.yale.UUCP> <1135@pembina.UUCP> <25461@yale-celray.yale.UUCP> <793@houxs.UUCP> <9545@ism780c.UUCP>
Reply-To: daveb@geac.UUCP (David Collier-Brown)
Organization: /usr/lib/news/organisation
Lines: 17

In article <9545@ism780c.UUCP> marv@ism780.UUCP (Marvin Rubenstein) writes:
>The reason that CAS was not generated is that FORTRAN (and FORTRAN II) did
>not have any compare operators.  The only IF statement was the arithmetic if
>whose form is:
>
>    IF ( <arithmetic-expression> ) <label-one>,<label-two>,<label-three>

In some of the early proposal papers (FORTRAN 0), the if statemnent
was
	if (expression comparison_operator expression) statement
where both the expressions and operators were strongly restricted.
The more general 3-valued if was actually implemented.
-- 
 David Collier-Brown.                 {mnetor yunexus utgpu}!geac!daveb
 Geac Computers International Inc.,   |  Computer Science loses its
 350 Steelcase Road,Markham, Ontario, |  memory (if not its mind) 
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