12eb46c8bb
an int constant to a long constant. This change improves consistency in the following two ways: 1. The first 8 arguments are always passed in registers on ia64, which by virtue of the generated code implicitly widens ints to longs and allows the use of an 32-bit integral type for 64-bit arguments. Subsequent arguments are passed onto the memory stack, which does not exhibit the same behaviour and consequently do not allow this. In practice this means that variadic functions taking pointers and given NULL (without cast) work as long as the NULL is passed in one of the first 8 arguments. A SIGSEGV is more likely the result if such would be done for stack-based arguments. This is due to the fact that the upper 4 bytes remain undefined. 2. All 64-bit platforms that FreeBSD supports, with the obvious exception of ia64, allow 32-bit integral types (specifically NULL) when 64-bit pointers are expected in variadic functions by way of how the compiler generates code. As such, code that works correctly (whether rightfully so or not) on any platform other than ia64, may fail on ia64. To more easily allow tweaking of the definition of NULL, this commit removes the 12 definitions in the various headers and puts it in a new header that can be included whenever NULL is to be made visible. This commit fixes GNOME, emacs, xemacs and a whole bunch of ports that I don't particularly care about at this time...
205 lines
7.9 KiB
C
205 lines
7.9 KiB
C
/*-
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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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* $FreeBSD$
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*/
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/*-
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* Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Julian Coleman.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* $NetBSD: wchar.h,v 1.8 2000/12/22 05:31:42 itojun Exp $
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*/
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#ifndef _WCHAR_H_
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#define _WCHAR_H_
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#include <sys/cdefs.h>
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#include <sys/_null.h>
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#include <sys/_types.h>
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#include <machine/_limits.h>
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#ifndef _MBSTATE_T_DECLARED
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typedef __mbstate_t mbstate_t;
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#define _MBSTATE_T_DECLARED
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#endif
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#ifndef _SIZE_T_DECLARED
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typedef __size_t size_t;
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#define _SIZE_T_DECLARED
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#endif
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#ifndef __cplusplus
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#ifndef _WCHAR_T_DECLARED
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typedef __wchar_t wchar_t;
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#define _WCHAR_T_DECLARED
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#endif
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#endif
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#ifndef _WINT_T_DECLARED
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typedef __wint_t wint_t;
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#define _WINT_T_DECLARED
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#endif
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#ifndef WCHAR_MIN
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#define WCHAR_MIN __INT_MIN
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#define WCHAR_MAX __INT_MAX
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#endif
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#ifndef WEOF
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#define WEOF ((wint_t)-1)
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#endif
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struct __sFILE;
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struct tm;
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__BEGIN_DECLS
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wint_t btowc(int);
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wint_t fgetwc(struct __sFILE *);
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wchar_t *
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fgetws(wchar_t * __restrict, int, struct __sFILE * __restrict);
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wint_t fputwc(wchar_t, struct __sFILE *);
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int fputws(const wchar_t * __restrict, struct __sFILE * __restrict);
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int fwide(struct __sFILE *, int);
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int fwprintf(struct __sFILE * __restrict, const wchar_t * __restrict, ...);
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int fwscanf(struct __sFILE * __restrict, const wchar_t * __restrict, ...);
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wint_t getwc(struct __sFILE *);
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wint_t getwchar(void);
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size_t mbrlen(const char * __restrict, size_t, mbstate_t * __restrict);
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size_t mbrtowc(wchar_t * __restrict, const char * __restrict, size_t,
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mbstate_t * __restrict);
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int mbsinit(const mbstate_t *);
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size_t mbsrtowcs(wchar_t * __restrict, const char ** __restrict, size_t,
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mbstate_t * __restrict);
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wint_t putwc(wchar_t, struct __sFILE *);
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wint_t putwchar(wchar_t);
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int swprintf(wchar_t * __restrict, size_t n, const wchar_t * __restrict,
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...);
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int swscanf(const wchar_t * __restrict, const wchar_t * __restrict, ...);
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wint_t ungetwc(wint_t, struct __sFILE *);
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int vfwprintf(struct __sFILE * __restrict, const wchar_t * __restrict,
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__va_list);
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int vswprintf(wchar_t * __restrict, size_t n, const wchar_t * __restrict,
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__va_list);
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int vwprintf(const wchar_t * __restrict, __va_list);
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size_t wcrtomb(char * __restrict, wchar_t, mbstate_t * __restrict);
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wchar_t *wcscat(wchar_t * __restrict, const wchar_t * __restrict);
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wchar_t *wcschr(const wchar_t *, wchar_t);
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int wcscmp(const wchar_t *, const wchar_t *);
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int wcscoll(const wchar_t *, const wchar_t *);
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wchar_t *wcscpy(wchar_t * __restrict, const wchar_t * __restrict);
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size_t wcscspn(const wchar_t *, const wchar_t *);
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size_t wcsftime(wchar_t * __restrict, size_t, const wchar_t * __restrict,
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const struct tm * __restrict);
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size_t wcslen(const wchar_t *);
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wchar_t *wcsncat(wchar_t * __restrict, const wchar_t * __restrict,
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size_t);
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int wcsncmp(const wchar_t *, const wchar_t *, size_t);
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wchar_t *wcsncpy(wchar_t * __restrict , const wchar_t * __restrict, size_t);
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wchar_t *wcspbrk(const wchar_t *, const wchar_t *);
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wchar_t *wcsrchr(const wchar_t *, wchar_t);
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size_t wcsrtombs(char * __restrict, const wchar_t ** __restrict, size_t,
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mbstate_t * __restrict);
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size_t wcsspn(const wchar_t *, const wchar_t *);
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wchar_t *wcsstr(const wchar_t * __restrict, const wchar_t * __restrict);
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size_t wcsxfrm(wchar_t * __restrict, const wchar_t * __restrict, size_t);
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int wctob(wint_t);
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double wcstod(const wchar_t * __restrict, wchar_t ** __restrict);
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wchar_t *wcstok(wchar_t * __restrict, const wchar_t * __restrict,
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wchar_t ** __restrict);
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long wcstol(const wchar_t * __restrict, wchar_t ** __restrict, int);
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unsigned long
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wcstoul(const wchar_t * __restrict, wchar_t ** __restrict, int);
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wchar_t *wmemchr(const wchar_t *, wchar_t, size_t);
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int wmemcmp(const wchar_t *, const wchar_t *, size_t);
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wchar_t *wmemcpy(wchar_t * __restrict, const wchar_t * __restrict, size_t);
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wchar_t *wmemmove(wchar_t *, const wchar_t *, size_t);
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wchar_t *wmemset(wchar_t *, wchar_t, size_t);
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int wprintf(const wchar_t * __restrict, ...);
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int wscanf(const wchar_t * __restrict, ...);
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#if __ISO_C_VISIBLE >= 1999
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int vfwscanf(struct __sFILE * __restrict, const wchar_t * __restrict,
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__va_list);
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int vswscanf(const wchar_t * __restrict, const wchar_t * __restrict,
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__va_list);
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int vwscanf(const wchar_t * __restrict, __va_list);
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float wcstof(const wchar_t * __restrict, wchar_t ** __restrict);
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long double
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wcstold(const wchar_t * __restrict, wchar_t ** __restrict);
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#ifdef __LONG_LONG_SUPPORTED
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/* LONGLONG */
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long long
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wcstoll(const wchar_t * __restrict, wchar_t ** __restrict, int);
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/* LONGLONG */
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unsigned long long
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wcstoull(const wchar_t * __restrict, wchar_t ** __restrict, int);
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#endif
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#endif /* __ISO_C_VISIBLE >= 1999 */
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#if __XSI_VISIBLE
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int wcswidth(const wchar_t *, size_t);
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int wcwidth(wchar_t);
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#endif
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#if __BSD_VISIBLE
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size_t wcslcat(wchar_t *, const wchar_t *, size_t);
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size_t wcslcpy(wchar_t *, const wchar_t *, size_t);
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#endif
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__END_DECLS
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#endif /* !_WCHAR_H_ */
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