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diff --git a/wcsmbs/mbstr.h b/wcsmbs/mbstr.h
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+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library 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.
+
+The GNU C Library 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 the GNU C Library; see the file COPYING.LIB.  If
+not, write to the, Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef _MBSTRING_H
+
+#define _MBSTRING_H 1
+#include <features.h>
+#include <limits.h>
+
+#define __need_size_t
+#include <stddef.h>
+
+__BEGIN_DECLS
+
+/* This data type should be large enough to contain MB_CUR_MAX bytes.  */
+typedef unsigned int mbchar_t;
+
+
+/* Copy SRC to DEST.  */
+extern char *mbscpy __P ((char *__dest, __const char *__src));
+/* Copy no more than N multi-byte characters of SRC to DEST.  */
+extern char *mbsncpy __P ((char *__dest, __const char *__src, size_t __n));
+
+/* Append SRC onto DEST.  */
+extern char *mbscat __P ((char *__dest, __const char *__src));
+/* Append no more than N characters from SRC onto DEST.  */
+extern char *mbsncat __P ((char *__dest, __const char *__src, size_t __n));
+
+/* Compare S1 and S2.  */
+extern int mbscmp __P ((__const char *__s1, __const char *__s2));
+/* Compare N characters of S1 and S2.  */
+extern int mbsncmp __P ((__const char *__s1, __const char *__s2, size_t __n));
+
+/* Duplicate MBS, returning an identical malloc'd string.  */
+extern char *mbsdup __P ((__const char *__s));
+
+/* Find the first occurence of MBC in MBS.  */
+extern char *mbschr __P ((__const char *__mbs, mbchar_t mbc));
+/* Find the last occurence of MBC in MBS.  */
+extern char *mbsrchr __P ((__const char *__mbs, mbchar_t mbc));
+
+/* Return the length of MBS.  */
+extern size_t mbslen __P ((__const char *__mbs));
+
+
+/* Advance pointer to multibyte string by one character.  */
+extern char *mbsadvance __P ((__const char *__mbs));
+
+/* Return first character in MBS.  */
+extern mbchar_t mbstomb __P ((__const char *__mbs));
+
+__END_DECLS
+
+#endif /* mbstring.h */