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c84142e8 UD |
1 | /* Copyright (C) 1991, 1996, 1997 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. | |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Library General Public License as | |
6 | published by the Free Software Foundation; either version 2 of the | |
7 | License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library 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 the GNU C Library; see the file COPYING.LIB. If not, | |
16 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | Boston, MA 02111-1307, USA. */ | |
28f540f4 | 18 | |
28f540f4 RM |
19 | #include <errno.h> |
20 | #include <stdio.h> | |
21 | ||
22 | #undef ferror | |
23 | ||
24 | ||
25 | /* Return non-zero if STREAM has its error indicator set. */ | |
26 | int | |
c4029823 UD |
27 | ferror (stream) |
28 | FILE *stream; | |
28f540f4 | 29 | { |
c4029823 | 30 | if (!__validfp (stream)) |
28f540f4 | 31 | { |
c4029823 UD |
32 | __set_errno (EINVAL); |
33 | return -1; | |
28f540f4 RM |
34 | } |
35 | ||
c4029823 | 36 | return stream->__error; |
28f540f4 | 37 | } |