Create a branch for header work.

svn path=/branches/header-work/; revision=45691

lib/sdk/crt/mbstring/mbclen.c

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+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/sdk/crt/mbstring/mbclen.c
+ * PURPOSE:      Determines the length of a multi byte character
+ * PROGRAMERS:
+ *              Copyright 1999 Alexandre Julliard
+ *              Copyright 2000 Jon Griffths
+ *
+ */
+
+#include <mbstring.h>
+#include <stdlib.h>
+
+int isleadbyte(int byte);
+
+/*
+ * @implemented
+ */
+size_t _mbclen(const unsigned char *s)
+{
+  return _ismbblead(*s) ? 2 : 1;
+}
+
+size_t _mbclen2(const unsigned int s)
+{
+  return (_ismbblead(s>>8) && _ismbbtrail(s&0x00FF)) ? 2 : 1;
+}
+
+/*
+ * assume MB_CUR_MAX == 2
+ *
+ * @implemented
+ */
+int mblen( const char *str, size_t size )
+{
+  if (str && *str && size)
+  {
+    return !isleadbyte(*str) ? 1 : (size>1 ? 2 : -1);
+  }
+  return 0;
+}