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81fea2b1 JL |
1 | /* Copyright (C) 1995 Free Software Foundation, Inc. |
2 | This file is part of GNU Fortran libU77 library. | |
3 | ||
4 | This library is free software; you can redistribute it and/or modify it | |
5 | under the terms of the GNU Library General Public License as published | |
6 | by the Free Software Foundation; either version 2 of the License, or | |
7 | (at your option) any later version. | |
8 | ||
9 | GNU Fortran is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Library General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Library General Public | |
15 | License along with GNU Fortran; see the file COPYING.LIB. If | |
16 | not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | Boston, MA 02111-1307, USA. */ | |
18 | ||
19 | #ifdef HAVE_CONFIG_H | |
20 | #include "config.h" | |
21 | #endif | |
22 | #if HAVE_UNISTD_H | |
23 | # include <unistd.h> | |
24 | #endif | |
25 | #include "f2c.h" | |
26 | #include "fio.h" | |
27 | ||
81fea2b1 JL |
28 | extern integer G77_fnum_0 (integer *); |
29 | ||
407c72cb KG |
30 | logical |
31 | G77_isatty_0 (integer * lunit) | |
81fea2b1 | 32 | { |
407c72cb KG |
33 | if (*lunit >= MXUNIT || *lunit < 0) |
34 | err (1, 101, "isatty"); | |
81fea2b1 JL |
35 | /* f__units is a table of descriptions for the unit numbers (defined |
36 | in io.h) with file descriptors rather than streams */ | |
407c72cb | 37 | return (isatty (G77_fnum_0 (lunit)) ? TRUE_ : FALSE_); |
81fea2b1 | 38 | } |