mktime: check signed shifts on long_int and time_t, too
[glibc.git] / libio / getwc.c
blob7bd539f43f042b1010c11b86c42f8f0351cb5b8a
1 /* Copyright (C) 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2003
2 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>.
19 As a special exception, if you link the code in this file with
20 files compiled with a GNU compiler to produce an executable,
21 that does not cause the resulting executable to be covered by
22 the GNU Lesser General Public License. This exception does not
23 however invalidate any other reasons why the executable file
24 might be covered by the GNU Lesser General Public License.
25 This exception applies to code released by its copyright holders
26 in files containing the exception. */
28 #include "libioP.h"
29 #include <stdio.h>
30 #include <wchar.h>
32 #undef _IO_getwc
34 wint_t
35 _IO_getwc (fp)
36 FILE *fp;
38 wint_t result;
39 CHECK_FILE (fp, WEOF);
40 _IO_acquire_lock (fp);
41 result = _IO_getwc_unlocked (fp);
42 _IO_release_lock (fp);
43 return result;
46 #undef getwc
48 #ifdef weak_alias
49 weak_alias (_IO_getwc, getwc)
50 weak_alias (_IO_getwc, fgetwc)
51 #endif