Path: utzoo!mnetor!uunet!husc6!mailrus!nrl-cmf!ames!pasteur!agate!violet.berkeley.edu!jerry
From: jerry@violet.berkeley.edu ( Jerry Berkman )
Newsgroups: comp.lang.fortran
Subject: Re: Recursion
Message-ID: <7975@agate.BERKELEY.EDU>
Date: 24 Mar 88 19:32:37 GMT
Sender: usenet@agate.BERKELEY.EDU
Reply-To: jerry@violet.berkeley.edu ( Jerry Berkman )
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Organization: University of California, Berkeley
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In article <522@a.UUCP>, jlg@a.UUCP (Jim Giles) says:

>> There are a number of Fortran environments that already allow recursive
>> subroutines and/or functions.  The addition of recursion is something
>> that is long overdue. ...

And in article <1180@hubcap.UUCP> fpst@hubcap.UUCP (Steve Stevenson) writes:

>We are extending Fortan for hypercubes and we have been rummaging around
>the standard some.  There seems to be no prohibition to recursion.

The 1977 FORTRAN standard, ANSI x3.9-1978 says (page 15-1, lines 55-56):
    "A subprogram must not reference itself, either directly or indirectly."

Recursion is explicitly allowed in Fortran 8x.

Jerry Berkman				jerry@violet.berkeley.edu
Computing Services, U.C. Berkeley	(415)642-4804