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39 lines
1.3 KiB
C
39 lines
1.3 KiB
C
/* Copyright (C) 1995 Free Software Foundation, Inc.
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This file is part of GNU Fortran libU77 library.
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This library is free software; you can redistribute it and/or modify it
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under the terms of the GNU Library General Public License as published
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by the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GNU Fortran is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with GNU Fortran; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#if HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include "f2c.h"
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#include "fio.h"
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extern integer G77_fnum_0 (integer *);
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logical
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G77_isatty_0 (integer * lunit)
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{
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if (*lunit >= MXUNIT || *lunit < 0)
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err (1, 101, "isatty");
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/* f__units is a table of descriptions for the unit numbers (defined
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in io.h) with file descriptors rather than streams */
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return (isatty (G77_fnum_0 (lunit)) ? TRUE_ : FALSE_);
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}
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