Libc-763.11.tar.gz

[apple/libc.git] / string / wcsncasecmp-fbsd.c

diff --git a/string/wcsncasecmp-fbsd.c b/string/wcsncasecmp-fbsd.c
new file mode 100644 (file)
index 0000000..167fac1
--- /dev/null
+++ b/string/wcsncasecmp-fbsd.c
@@ -0,0 +1,57 @@
+/*-
+ * Copyright (c) 2009 David Schultz <das@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/lib/libc/string/wcsncasecmp.c,v 1.1 2009/02/28 06:00:58 das Exp $");
+
+#include "xlocale_private.h"
+
+#include <wchar.h>
+#include <wctype.h>
+
+int
+wcsncasecmp_l(const wchar_t *s1, const wchar_t *s2, size_t n, locale_t loc)
+{
+       wchar_t c1, c2;
+
+       if (n == 0)
+               return (0);
+       for (; *s1; s1++, s2++) {
+               c1 = towlower_l(*s1, loc);
+               c2 = towlower_l(*s2, loc);
+               if (c1 != c2)
+                       return ((int)c1 - c2);
+               if (--n == 0)
+                       return (0);
+       }
+       return (-*s2);
+}
+
+int
+wcsncasecmp(const wchar_t *s1, const wchar_t *s2, size_t n) {
+       return wcsncasecmp_l(s1, s2, n, __current_locale());
+}
+