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