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NetBSD/include/wchar.h
bjh21 4be7a2dcf3 Add a new feature-test macro, _NETBSD_SOURCE. If this is defined 
by the application, all NetBSD interfaces are made visible, even
if some other feature-test macro (like _POSIX_C_SOURCE) is defined.
<sys/featuretest.h> defined _NETBSD_SOURCE if none of _ANSI_SOURCE,
_POSIX_C_SOURCE and _XOPEN_SOURCE is defined, so as to preserve
existing behaviour.

This has two major advantages:
+ Programs that require non-POSIX facilities but define _POSIX_C_SOURCE
  can trivially be overruled by putting -D_NETBSD_SOURCE in their CFLAGS.
+ It makes most of the #ifs simpler, in that they're all now ORs of the
  various macros, rather than having checks for (!defined(_ANSI_SOURCE) ||
  !defined(_POSIX_C_SOURCE) || !defined(_XOPEN_SOURCE)) all over the place.

I've tried not to change the semantics of the headers in any case where
_NETBSD_SOURCE wasn't defined, but there were some places where the
current semantics were clearly mad, and retaining them was harder than
correcting them.  In particular, I've mostly normalised things so that
_ANSI_SOURCE gets you the smallest set of stuff, then _POSIX_C_SOURCE,
_XOPEN_SOURCE and _NETBSD_SOURCE in that order.

Tested by building for vax, encouraged by thorpej, and uncontested in
tech-userlevel for a week.
2003-04-28 23:16:11 +00:00

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/* $NetBSD: wchar.h,v 1.18 2003/04/28 23:16:15 bjh21 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.
*/
/*-
* Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Julian Coleman.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifndef _WCHAR_H_
#define _WCHAR_H_
#include <sys/cdefs.h>
#include <sys/featuretest.h>
#include <machine/ansi.h>
#include <sys/null.h>
#include <stdio.h> /* for FILE* */
#ifdef _BSD_WCHAR_T_
typedef _BSD_WCHAR_T_ wchar_t;
#undef _BSD_WCHAR_T_
#endif
#ifdef _BSD_MBSTATE_T_
typedef _BSD_MBSTATE_T_ mbstate_t;
#undef _BSD_MBSTATE_T_
#endif
#ifdef _BSD_WINT_T_
typedef _BSD_WINT_T_ wint_t;
#undef _BSD_WINT_T_
#endif
#ifdef _BSD_SIZE_T_
typedef _BSD_SIZE_T_ size_t;
#undef _BSD_SIZE_T_
#endif
#ifndef WEOF
#define WEOF ((wint_t)-1)
#endif
#define getwc(f) fgetwc(f)
#define getwchar() getwc(stdin)
#define putwc(wc, f) fputwc((wc), (f))
#define putwchar(wc) putwc((wc), stdout)
__BEGIN_DECLS
wint_t btowc __P((int));
size_t mbrlen __P((const char * __restrict, size_t, mbstate_t * __restrict));
size_t mbrtowc __P((wchar_t * __restrict, const char * __restrict, size_t,
mbstate_t * __restrict));
int mbsinit __P((const mbstate_t *));
size_t mbsrtowcs __P((wchar_t * __restrict, const char ** __restrict, size_t,
mbstate_t * __restrict));
size_t wcrtomb __P((char * __restrict, wchar_t, mbstate_t * __restrict));
wchar_t *wcscat __P((wchar_t * __restrict, const wchar_t * __restrict));
wchar_t *wcschr __P((const wchar_t *, wchar_t));
int wcscmp __P((const wchar_t *, const wchar_t *));
int wcscoll __P((const wchar_t *, const wchar_t *));
wchar_t *wcscpy __P((wchar_t * __restrict, const wchar_t * __restrict));
size_t wcscspn __P((const wchar_t *, const wchar_t *));
size_t wcslen __P((const wchar_t *));
wchar_t *wcsncat __P((wchar_t * __restrict, const wchar_t * __restrict,
size_t));
int wcsncmp __P((const wchar_t *, const wchar_t *, size_t));
wchar_t *wcsncpy __P((wchar_t * __restrict , const wchar_t * __restrict,
size_t));
wchar_t *wcspbrk __P((const wchar_t *, const wchar_t *));
wchar_t *wcsrchr __P((const wchar_t *, wchar_t));
size_t wcsrtombs __P((char * __restrict, const wchar_t ** __restrict, size_t,
mbstate_t * __restrict));
size_t wcsspn __P((const wchar_t *, const wchar_t *));
wchar_t *wcsstr __P((const wchar_t *, const wchar_t *));
wchar_t *wcstok __P((wchar_t * __restrict, const wchar_t * __restrict,
wchar_t ** __restrict));
size_t wcsxfrm __P((wchar_t *, const wchar_t *, size_t));
wchar_t *wcswcs __P((const wchar_t *, const wchar_t *));
wchar_t *wmemchr __P((const wchar_t *, wchar_t, size_t));
int wmemcmp __P((const wchar_t *, const wchar_t *, size_t));
wchar_t *wmemcpy __P((wchar_t * __restrict, const wchar_t * __restrict,
size_t));
wchar_t *wmemmove __P((wchar_t *, const wchar_t *, size_t));
wchar_t *wmemset __P((wchar_t *, wchar_t, size_t));
size_t wcslcat __P((wchar_t *, const wchar_t *, size_t));
size_t wcslcpy __P((wchar_t *, const wchar_t *, size_t));
int wcswidth __P((const wchar_t *, size_t));
int wctob __P((wint_t));
int wcwidth __P((wchar_t));
unsigned long int wcstoul __P((const wchar_t * __restrict,
wchar_t ** __restrict, int base));
long int wcstol __P((const wchar_t * __restrict,
wchar_t ** __restrict, int base));
double wcstod __P((const wchar_t * __restrict, wchar_t ** __restrict));
#if defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) > 199901L || \
defined(_NETBSD_SOURCE)
/* LONGLONG */
long long int wcstoll __P((const wchar_t * __restrict,
wchar_t ** __restrict, int base));
/* LONGLONG */
unsigned long long int wcstoull __P((const wchar_t * __restrict,
wchar_t ** __restrict, int base));
#endif
wint_t ungetwc __P((wint_t, FILE *));
wint_t fgetwc __P((FILE *));
wchar_t *fgetws __P((wchar_t * __restrict, int, FILE * __restrict));
wint_t getwc __P((FILE *));
wint_t getwchar __P((void));
wint_t fputwc __P((wchar_t, FILE *));
int fputws __P((const wchar_t * __restrict, FILE * __restrict));
wint_t putwc __P((wchar_t, FILE *));
wint_t putwchar __P((wchar_t));
int fwide __P((FILE *, int));
__END_DECLS
#endif /* !_WCHAR_H_ */
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