--- Libc/Libc-262.3.2/include/string.h
+++ Libc/Libc-1669.40.2/include/string.h
@@ -1,17 +1,15 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000, 2007, 2010, 2023 Apple Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
- * 
+ *
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
  * compliance with the License. Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this
  * file.
- * 
+ *
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
@@ -19,7 +17,7 @@
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.
- * 
+ *
  * @APPLE_LICENSE_HEADER_END@
  */
 /*-
@@ -57,64 +55,8 @@
  *	@(#)string.h	8.1 (Berkeley) 6/2/93
  */
 
-#ifndef _STRING_H_
-#define	_STRING_H_
-#include <machine/ansi.h>
+#include <_string.h>
 
-#ifndef	_BSD_SIZE_T_DEFINED_
-#define	_BSD_SIZE_T_DEFINED_
-typedef	_BSD_SIZE_T_	size_t;
-#endif
-
-#ifndef	NULL
-#define	NULL	0
-#endif
-
-#include <sys/cdefs.h>
-
-__BEGIN_DECLS
-void	*memchr __P((const void *, int, size_t));
-int	 memcmp __P((const void *, const void *, size_t));
-void	*memcpy __P((void *, const void *, size_t));
-void	*memmove __P((void *, const void *, size_t));
-void	*memset __P((void *, int, size_t));
-char	*strcat __P((char *, const char *));
-char	*strchr __P((const char *, int));
-int	 strcmp __P((const char *, const char *));
-int	 strcoll __P((const char *, const char *));
-char	*strcpy __P((char *, const char *));
-size_t	 strcspn __P((const char *, const char *));
-char	*strerror __P((int));
-size_t	 strlen __P((const char *));
-char	*strncat __P((char *, const char *, size_t));
-int	 strncmp __P((const char *, const char *, size_t));
-char	*strncpy __P((char *, const char *, size_t));
-char	*strpbrk __P((const char *, const char *));
-char	*strrchr __P((const char *, int));
-size_t	 strspn __P((const char *, const char *));
-char	*strstr __P((const char *, const char *));
-char	*strtok __P((char *, const char *));
-size_t	 strxfrm __P((char *, const char *, size_t));
-
-/* Nonstandard routines */
-#ifndef _ANSI_SOURCE
-int	 bcmp __P((const void *, const void *, size_t));
-void	 bcopy __P((const void *, void *, size_t));
-void	 bzero __P((void *, size_t));
-int	 ffs __P((int));
-char	*index __P((const char *, int));
-void	*memccpy __P((void *, const void *, int, size_t));
-char	*rindex __P((const char *, int));
-int	 strcasecmp __P((const char *, const char *));
-char	*strdup __P((const char *));
-size_t	 strlcat __P((char *, const char *, size_t));
-size_t	 strlcpy __P((char *, const char *, size_t));
-void	 strmode __P((int, char *));
-int	 strncasecmp __P((const char *, const char *, size_t));
-char	*strsep __P((char **, const char *));
-char	*strtok_r __P((char *, const char *, char **));
-void	 swab __P((const void *, void *, size_t));
-#endif 
-__END_DECLS
-
-#endif /* _STRING_H_ */
+#ifdef _USE_EXTENDED_LOCALES_
+#include <xlocale/_string.h>
+#endif /* _USE_EXTENDED_LOCALES_ */