Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!mit-eddie!apollo!geiser
From: geiser@apollo.COM (Wayne Geiser)
Newsgroups: comp.sys.apollo
Subject: Re: Fortran file units and IOS streams
Message-ID: <3e35bd4a.ba7d@apollo.COM>
Date: 1 Sep 88 16:36:00 GMT
References: <8808311617.AA07387@umix.cc.umich.edu>
Organization: Apollo Computer, Chelmsford, Mass.
Lines: 38

>Has anyone ever been able to use FORTRAN write commands to write to
>an IOS stream?
>
>It would be real nice if you could just use the IOS stream id variable
>as the FORTRAN file unit, but this is not correct. Is there a way to
>work with this instead of having to use IOS_$PUT?
>
>It's not that we can't handle doing it, but porting programs that are
>huge can get kind of tedious.
>
>If it's not possible, then how about it? Let's see a call IOS_$GET_FTN_UNIT
>or something.
>
>Thanks in advance,
>
>Scott Ferguson
>Bucknell University CAED Center
>ferguson@bknlvms.bitnet

You have been able to do IOS calls to a FORTRAN unit for quite a while.
In this case, you use the INQUIRE statement with the STRID= specifier. 
It gives you back the IOS ID which you may use in IOS calls.

As of SR10, you may do it the other way 'round.  In this case, you
supply a valid IOS ID to the STRID= specifier to the OPEN statement
(you use it instead of the FILE= specifier).

Note, however, that you may do lots of things that are not supported. 
Be careful!  Travel at your own risk.

              Wayne Geiser
              Apollo Computer
              {wanginst, yale, uw-beaver, brunix, utah-cs}!apollo!geiser

-- 
Wayne Geiser
Apollo Computer, Inc.
{mit-erl, yale, uw-beaver, decvax}!apollo!geiser