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 #ifdef KR_headers
  30 integer G77_fgetc_0 (lunit, c, Lc)
  31      integer *lunit;
  32      ftnlen Lc;                 /* should be 1 */
  33      char *c;
  34 #else
  35 integer G77_fgetc_0 (const integer *lunit, char *c, ftnlen Lc)
  36 #endif
  37 {
  38   int err;
  39   FILE *f = f__units[*lunit].ufd;
  40
  41   if (*lunit>=MXUNIT || *lunit<0)
  42     return 101;                 /* bad unit error */
  43   err = getc (f);
  44   if (err == EOF) {
  45     if (feof (f))
  46       return -1;
  47     else
  48       return ferror (f); }
  49   else {
  50     if (Lc == 0)
  51       return 0;
  52
  53     c[0] = err;
  54     while (--Lc)
  55       *++c = ' ';
  56     return 0; }
  57 }
  58
  59 #ifdef KR_headers
  60 integer G77_fget_0 (c, Lc)
  61      ftnlen Lc;                 /* should be 1 */
  62      char *c;
  63 #else
  64 integer G77_fget_0 (char *c, const ftnlen Lc)
  65 #endif
  66 {
  67   integer five = 5;
  68
  69   return G77_fgetc_0 (&five, c, Lc);
  70 }