Fix pthread_cond_*wait with requeue-PI on i386.
[glibc.git] / string / strcasecmp.c
blob3ae3d67d04fb275f3b781b4683856ce5ff9d3441
1 /* Copyright (C) 1991,1992,1995,1996,1997,2001,2002, 2004
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, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #ifdef HAVE_CONFIG_H
21 # include <config.h>
22 #endif
24 #include <ctype.h>
25 #include <string.h>
27 #ifndef _LIBC
28 # define __strcasecmp strcasecmp
29 # define TOLOWER(Ch) tolower (Ch)
30 #else
31 # include <locale/localeinfo.h>
32 # ifdef USE_IN_EXTENDED_LOCALE_MODEL
33 # define __strcasecmp __strcasecmp_l
34 # endif
35 # define TOLOWER(Ch) __tolower_l ((Ch), loc)
36 #endif
38 #ifdef USE_IN_EXTENDED_LOCALE_MODEL
39 # define LOCALE_PARAM , loc
40 # define LOCALE_PARAM_DECL __locale_t loc;
41 #else
42 # define LOCALE_PARAM
43 # define LOCALE_PARAM_DECL
44 #endif
46 /* Compare S1 and S2, ignoring case, returning less than, equal to or
47 greater than zero if S1 is lexicographically less than,
48 equal to or greater than S2. */
49 int
50 __strcasecmp (s1, s2 LOCALE_PARAM)
51 const char *s1;
52 const char *s2;
53 LOCALE_PARAM_DECL
55 #if defined _LIBC && !defined USE_IN_EXTENDED_LOCALE_MODEL
56 __locale_t loc = _NL_CURRENT_LOCALE;
57 #endif
58 const unsigned char *p1 = (const unsigned char *) s1;
59 const unsigned char *p2 = (const unsigned char *) s2;
60 int result;
62 if (p1 == p2)
63 return 0;
65 while ((result = TOLOWER (*p1) - TOLOWER (*p2++)) == 0)
66 if (*p1++ == '\0')
67 break;
69 return result;
71 #ifndef __strcasecmp
72 libc_hidden_def (__strcasecmp)
73 weak_alias (__strcasecmp, strcasecmp)
74 #endif