1 /* $NetBSD: wcscasecmp.c,v 1.3 2013/04/18 23:24:27 joerg Exp $ */ 2 3 /* 4 * Copyright (C) 2006 Aleksey Cheusov 5 * 6 * This material is provided "as is", with absolutely no warranty expressed 7 * or implied. Any use is at your own risk. 8 * 9 * Permission to use or copy this software for any purpose is hereby granted 10 * without fee. Permission to modify the code and to distribute modified 11 * code is also granted without any restrictions. 12 */ 13 14 #include <sys/cdefs.h> 15 #if defined(LIBC_SCCS) && !defined(lint) 16 __RCSID("$NetBSD: wcscasecmp.c,v 1.3 2013/04/18 23:24:27 joerg Exp $"); 17 #endif /* LIBC_SCCS and not lint */ 18 19 #include "namespace.h" 20 #include <assert.h> 21 #include <wchar.h> 22 #include <wctype.h> 23 #include <locale.h> 24 #include "setlocale_local.h" 25 26 __weak_alias(wcscasecmp,_wcscasecmp) 27 __weak_alias(wcscasecmp_l,_wcscasecmp_l) 28 29 int 30 wcscasecmp_l(const wchar_t *s1, const wchar_t *s2, locale_t loc) 31 { 32 int lc1 = 0; 33 int lc2 = 0; 34 int diff = 0; 35 36 if (loc == NULL) 37 loc = _C_locale; 38 39 _DIAGASSERT(s1); 40 _DIAGASSERT(s2); 41 42 for (;;) { 43 lc1 = towlower_l(*s1, loc); 44 lc2 = towlower_l(*s2, loc); 45 46 diff = lc1 - lc2; 47 if (diff) 48 return diff; 49 50 if (!lc1) 51 return 0; 52 53 ++s1; 54 ++s2; 55 } 56 } 57 58 int 59 wcscasecmp(const wchar_t *s1, const wchar_t *s2) 60 { 61 return wcscasecmp_l(s1, s2, *_current_locale()); 62 } 63