/*
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/*
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FUNCTION
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FUNCTION
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<<wcscmp>>---compare two wide-character strings
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<<wcscmp>>---compare two wide-character strings
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ANSI_SYNOPSIS
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ANSI_SYNOPSIS
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#include <wchar.h>
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#include <wchar.h>
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int wcscmp(const wchar_t *<[s1]>, *<[s2]>);
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int wcscmp(const wchar_t *<[s1]>, *<[s2]>);
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TRAD_SYNOPSIS
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TRAD_SYNOPSIS
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int wcscmp(<[s1]>, <[s2]>
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int wcscmp(<[s1]>, <[s2]>
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const wchar_t *<[s1]>, <[s2]>;
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const wchar_t *<[s1]>, <[s2]>;
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DESCRIPTION
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DESCRIPTION
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The <<wcscmp>> function compares the wide-character string pointed to
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The <<wcscmp>> function compares the wide-character string pointed to
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by <[s1]> to the wide-character string pointed to by <[s2]>.
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by <[s1]> to the wide-character string pointed to by <[s2]>.
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The sign of a non-zero return value is determined by the sign of the
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The sign of a non-zero return value is determined by the sign of the
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difference between the values of the first pair of wide-character codes
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difference between the values of the first pair of wide-character codes
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that differ in the objects being compared.
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that differ in the objects being compared.
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RETURNS
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RETURNS
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Upon completion, <<wcscmp>> returns an integer greater than, equal to
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Upon completion, <<wcscmp>> returns an integer greater than, equal to
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or less than 0, if the wide-character string pointed to by <[s1]> is
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or less than 0, if the wide-character string pointed to by <[s1]> is
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greater than, equal to or less than the wide-character string pointed
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greater than, equal to or less than the wide-character string pointed
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to by <[s2]> respectively.
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to by <[s2]> respectively.
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PORTABILITY
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PORTABILITY
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<<wcscmp>> is ISO/IEC 9899/AMD1:1995 (ISO C).
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<<wcscmp>> is ISO/IEC 9899/AMD1:1995 (ISO C).
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No supporting OS subroutines are required.
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No supporting OS subroutines are required.
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*/
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*/
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/* $NetBSD$ */
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/* $NetBSD$ */
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/*-
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/*-
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* Copyright (c) 1990, 1993
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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* The Regents of the University of California. All rights reserved.
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*
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*
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* This code is derived from software contributed to Berkeley by
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* This code is derived from software contributed to Berkeley by
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* Chris Torek.
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* Chris Torek.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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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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* modification, are permitted provided that the following conditions
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* are met:
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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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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* 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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* 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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* 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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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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* without specific prior written permission.
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*
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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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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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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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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* 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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* 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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* 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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* 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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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* SUCH DAMAGE.
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*/
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*/
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#include <_ansi.h>
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#include <_ansi.h>
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#include <wchar.h>
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#include <wchar.h>
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/*
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/*
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* Compare strings.
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* Compare strings.
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*/
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*/
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int
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int
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_DEFUN (wcscmp, (s1, s2),
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_DEFUN (wcscmp, (s1, s2),
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_CONST wchar_t * s1 _AND
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_CONST wchar_t * s1 _AND
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_CONST wchar_t * s2)
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_CONST wchar_t * s2)
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{
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{
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while (*s1 == *s2++)
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while (*s1 == *s2++)
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if (*s1++ == 0)
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if (*s1++ == 0)
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return (0);
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return (0);
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return (*s1 - *--s2);
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return (*s1 - *--s2);
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}
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}
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