Fix unsafe compiler optimization
[glibc.git] / libio / clearerr.c
blob79ba45da5f8fcd668ad206f95e938ef4c08e99d1
1 /* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
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 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
18 #include "libioP.h"
19 #include "stdio.h"
21 void
22 clearerr (fp)
23 FILE *fp;
25 CHECK_FILE (fp, /*nothing*/);
26 _IO_flockfile (fp);
27 _IO_clearerr (fp);
28 _IO_funlockfile (fp);
31 #if defined weak_alias && !defined _IO_MTSAFE_IO
32 weak_alias (clearerr, clearerr_unlocked)
33 #endif