Define NOT_IN_libc when compiling benchmark programs
[glibc.git] / string / strcasecmp.c
blobf2f48732cf3aa806311d27ebbd64d053b01d0bd2
1 /* Copyright (C) 1991-2013 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 #ifdef HAVE_CONFIG_H
19 # include <config.h>
20 #endif
22 #include <ctype.h>
23 #include <string.h>
25 #ifndef _LIBC
26 # define __strcasecmp strcasecmp
27 # define TOLOWER(Ch) tolower (Ch)
28 #else
29 # include <locale/localeinfo.h>
30 # ifdef USE_IN_EXTENDED_LOCALE_MODEL
31 # define __strcasecmp __strcasecmp_l
32 # endif
33 # define TOLOWER(Ch) __tolower_l ((Ch), loc)
34 #endif
36 #ifdef USE_IN_EXTENDED_LOCALE_MODEL
37 # define LOCALE_PARAM , loc
38 # define LOCALE_PARAM_DECL __locale_t loc;
39 #else
40 # define LOCALE_PARAM
41 # define LOCALE_PARAM_DECL
42 #endif
44 /* Compare S1 and S2, ignoring case, returning less than, equal to or
45 greater than zero if S1 is lexicographically less than,
46 equal to or greater than S2. */
47 int
48 __strcasecmp (s1, s2 LOCALE_PARAM)
49 const char *s1;
50 const char *s2;
51 LOCALE_PARAM_DECL
53 #if defined _LIBC && !defined USE_IN_EXTENDED_LOCALE_MODEL
54 __locale_t loc = _NL_CURRENT_LOCALE;
55 #endif
56 const unsigned char *p1 = (const unsigned char *) s1;
57 const unsigned char *p2 = (const unsigned char *) s2;
58 int result;
60 if (p1 == p2)
61 return 0;
63 while ((result = TOLOWER (*p1) - TOLOWER (*p2++)) == 0)
64 if (*p1++ == '\0')
65 break;
67 return result;
69 #ifndef __strcasecmp
70 libc_hidden_def (__strcasecmp)
71 weak_alias (__strcasecmp, strcasecmp)
72 #endif