libc.obj:

- Formatted by clang-format (WebKit-style).
- Removed unnecessary errno linux. 
- Added KOS error codes. 
- String functions have been replaced with more optimal ones for x86. 
- Changed wrappers for 70 sysfunction.

git-svn-id: svn://kolibrios.org@9765 a494cfbc-eb01-0410-851d-a64ba20cac60

programs/develop/ktcc/trunk/libc.obj/source/string/strlen.c

@@ -1,19 +1,16 @@
-/* strlen( const char * )
-
-   This file is part of the Public Domain C Library (PDCLib).
-   Permission is granted to use, modify, and / or redistribute at will.
-*/
-
-#include <string.h>
-
-size_t strlen( const char * s )
-{
-    size_t rc = 0;
-
-    while ( s[rc] )
-    {
-        ++rc;
-    }
-
-    return rc;
-}
+/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
+#include <string.h>
+
+size_t strlen(const char* str)
+{
+    int d0;
+    register int __res;
+    __asm__ __volatile__(
+        "repne\n\t"
+        "scasb\n\t"
+        "notl %0\n\t"
+        "decl %0"
+        : "=c"(__res), "=&D"(d0)
+        : "1"(str), "a"(0), "0"(0xffffffff));
+    return __res;
+}