/*FUNCTION	<<wcsncpy>>---copy part of a wide-character string ANSI_SYNOPSIS	#include <wchar.h>	wchar_t *wcsncpy(wchar_t *<[s1]>, const wchar_t *<[s2]>, size_t <[n]>);TRAD_SYNOPSIS	wchar_t *wcsncpy(<[s1]>, <[s2]>, <[n]>	wchar_t *<[s1]>;	const wchar_t *<[s2]>;	size_t <[n]>;DESCRIPTION	The <<wcsncpy>> function copies not more than n wide-character codes	(wide-character codes that follow a null wide-character code are not	copied) from the array pointed to by <[s2]> to the array pointed to	by <[s1]>. If copying takes place between objects that overlap, the	behaviour is undefined.	If the array pointed to by <[s2]> is a wide-character string that is	shorter than <[n]> wide-character codes, null wide-character codes are	appended to the copy in the array pointed to by <[s1]>, until <[n]>	wide-character codes in all are written. RETURNS	The <<wcsncpy>> function returns <[s1]>; no return value is reserved to	indicate an error. PORTABILITY<<wcsncpy>> is ISO/IEC 9899/AMD1:1995 (ISO C).No supporting OS subroutines are required.*//*	$NetBSD: wcsncpy.c,v 1.1 2000/12/23 23:14:36 itojun Exp $	*//*- * Copyright (c)1999 Citrus Project, * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in the *    documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * *	citrus Id: wcsncpy.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp */#include <_ansi.h>#include <wchar.h>wchar_t *_DEFUN (wcsncpy, (s1, s2, n),	wchar_t * s1 _AND	_CONST wchar_t * s2 _AND	size_t n){  wchar_t *p;  _CONST wchar_t *q;  *s1 = '\0';  p = s1;  q = s2;  while (n && *q)    {      *p++ = *q++;      n--;    }  *p = '\0';  return s1;}