1/* Copyright (C) 1995 Free Software Foundation, Inc. 2This file is part of GNU Fortran libU77 library. 3 4This library is free software; you can redistribute it and/or modify it 5under the terms of the GNU Library General Public License as published 6by the Free Software Foundation; either version 2 of the License, or 7(at your option) any later version. 8 9GNU Fortran is distributed in the hope that it will be useful, 10but WITHOUT ANY WARRANTY; without even the implied warranty of 11MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12Library General Public License for more details. 13 14You should have received a copy of the GNU Library General Public 15License along with GNU Fortran; see the file COPYING.LIB. If 16not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, 17Boston, 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 28#ifdef KR_headers 29extern integer G77_fnum_0 (); 30 31logical G77_isatty_0 (lunit) 32 integer *lunit; 33#else 34extern integer G77_fnum_0 (integer *); 35 36logical G77_isatty_0 (integer *lunit) 37#endif 38{ 39 if (*lunit>=MXUNIT || *lunit<0) 40 err(1,101,"isatty"); 41 /* f__units is a table of descriptions for the unit numbers (defined 42 in io.h) with file descriptors rather than streams */ 43 return (isatty(G77_fnum_0 (lunit)) ? TRUE_ : FALSE_); 44} 45