Fortran f77 unformatted io on stdin stdout

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Article #13708

#13708

From: George Planansky
Date: Fri, 09 Feb 1990 03:30

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Regarding Sun's F77  (on a Sun 3, running 4.03), will it do unformatted
read, write on stdin, stdout?  The Sun manual says you can use
"form='unformatted'" in an open statement, to change the attribute of a
file that is already open.

I can't find an assertion that rules this out for units 5 and 6.  The
compiler accepts an "open(unit=5,form='unformatted')" statement, but it
bombs at runtime.

There is an io init library routine (in Fortran) which opens 5 and 6. Can
I use this to enable unformatted read, write?

I'm using the alternative of C subroutines, but it'd be a lot cleaner to
stick to Fortran.  Useful as it would be, surely Sun's Fortran will do it,
right?

George Planansky                 email:  gplan@ra.umb.edu
Atmosphere Environment Research
Cambridge, MA 02139
(617) 547-6207

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!rice!sun-spots-request
From: gplan@umb.umb.edu (George Planansky)
Newsgroups: comp.sys.sun
Subject: Fortran f77 unformatted io on stdin stdout
Keywords: Miscellaneous
Message-ID: <4849@brazos.Rice.edu>
Date: 9 Feb 90 03:30:29 GMT
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