libf2c/libU77/fgetc_.c

   1 /* Copyright (C) 1996 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 #ifdef HAVE_CONFIG_H
  23 #include "config.h"
  24 #endif
  25 #include <stdio.h>
  26 #include "f2c.h"
  27 #include "fio.h"
  28
  29 integer
  30 G77_fgetc_0 (const integer * lunit, char *c, ftnlen Lc)
  31 {
  32   int err;
  33   FILE *f = f__units[*lunit].ufd;
  34
  35   if (*lunit >= MXUNIT || *lunit < 0)
  36     return 101;                 /* bad unit error */
  37   err = getc (f);
  38   if (err == EOF)
  39     {
  40       if (feof (f))
  41         return -1;
  42       else
  43         return ferror (f);
  44     }
  45   else
  46     {
  47       if (Lc == 0)
  48         return 0;
  49
  50       c[0] = err;
  51       while (--Lc)
  52         *++c = ' ';
  53       return 0;
  54     }
  55 }
  56
  57 integer
  58 G77_fget_0 (char *c, const ftnlen Lc)
  59 {
  60   integer five = 5;
  61
  62   return G77_fgetc_0 (&five, c, Lc);
  63 }