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From: firth@sei.cmu.edu.UUCP
Newsgroups: comp.lang.fortran
Subject: Re: standards question
Message-ID: <3053@aw.sei.cmu.edu>
Date: Fri, 30-Oct-87 09:29:07 EST
Article-I.D.: aw.3053
Posted: Fri Oct 30 09:29:07 1987
Date-Received: Sun, 1-Nov-87 07:50:54 EST
References: <141@gtss.UUCP>
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In article <141@gtss.UUCP> chas@gtss.UUCP (Charles Cleveland) writes:
>Does the ANSI F77 standard have anything to say about the what the
>following program prints, or is it left up to the implementation?
>(Note:  I don't care what your machine actually does.)

      i1=0
      call add2(i1,i1)
      print*,i1
      end
      subroutine add2(i1,i2)
      i1=i1+1
      i2=i2+1
      return
      end

Yes it does.  The program is not a standard-conforming program, and
so its effect, if any, is undefined.  [ANSI X3.9-1978 15.9.3.6]