Write a new strxfrm that doesn't make function calls. Uses the same logic as

[uclinux-h8/uClibc.git] / libc / string / strcasecmp.c

diff --git a/libc/string/strcasecmp.c b/libc/string/strcasecmp.c
index 0ec81f6..bae6594 100644 (file)
--- a/libc/string/strcasecmp.c
+++ b/libc/string/strcasecmp.c
@@ -1,21 +1,35 @@
-/* Copyright (C) 1995,1996 Robert de Bath <rdebath@cix.compulink.co.uk>
- * This file is part of the Linux-8086 C library and is distributed
- * under the GNU Library General Public License.
+/* 
+ * strcasecmp for uClibc
+ * Copyright (C) 2002 by Brian Stafford <brian@stafford.uklinux.net>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  */
 
 #include <string.h>
 #include <ctype.h>
 
-int strcasecmp( const char *s, const char *d)
+int strcasecmp (const char *a, const char *b)
 {
-       for (;;) {
-               if (*s != *d) {
-                       if (tolower(*s) != tolower(*d))
-                               return *s - *d;
-               } else if (*s == '\0')
-                       break;
-               s++;
-               d++;
-       }
-       return 0;
+    register int n;
+
+    while (*a == *b || (n = tolower (*a) - tolower (*b)) == 0)
+    {
+       if (*a == '\0')
+           return 0;
+       a++, b++;
+    }
+    return n;
 }
+