Article View: comp.lang.fortran
Article #4443Re: meshing UNIX file descriptors and FORTRAN logical units
From: Peter W. Morreale
Date: Sun, 30 Jun 1991 15:28
Date: Sun, 30 Jun 1991 15:28
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1369 bytes
In article <51446@ut-emx.uucp> pefv700@perv.pe.utexas.edu writes:
>
>Does anyone know how to determine the file descriptor (useful for system
>calls) that matches a FORTRAN logical unit under UNIX?
>
I think you will find that this is a vendor specific problem.
I needed to do this with UNICOS 5.1.11, semi-quoting from a Crayon:
"It's d*mm near impossible."
The reason being (at least on UNICOS) that the file descriptor is an
array index pointing to a structure within the kernal. (ie: There is isn't
a straight-forward mapping between Fortran Unit numbers and system
file descriptrors.....)
-PWM
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Peter W. Morreale email: morreale@ncar.ucar.edu
Nat'l Center for Atmos Research voice: (303) 497-1293
Scientific Computing Division
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!elroy.jpl.nasa.gov!ncar!bierstadt.scd.ucar.edu!morreale From: morreale@bierstadt.scd.ucar.edu (Peter W. Morreale) Newsgroups: comp.lang.fortran Subject: Re: meshing UNIX file descriptors and FORTRAN logical units Message-ID: <11985@ncar.ucar.edu> Date: 30 Jun 91 15:28:15 GMT References: <51446@ut-emx.uucp> Sender: news@ncar.ucar.edu Distribution: usa Organization: Scientific Computing Division/NCAR, Boulder, CO Lines: 24