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File: [cvs.NetBSD.org] / src / lib / libc / locale / multibyte.h (download)

Revision 1.3, Tue Apr 29 14:53:12 2003 UTC (17 years, 1 month ago) by scw
Branch: MAIN
CVS Tags: yamt-pf42-baseX, yamt-pf42-base4, yamt-pf42-base3, yamt-pf42-base2, yamt-pf42-base, yamt-pf42, wrstuden-revivesa-base-3, wrstuden-revivesa-base-2, wrstuden-revivesa-base-1, wrstuden-revivesa-base, wrstuden-revivesa, wrstuden-fixsa-newbase, wrstuden-fixsa-base-1, wrstuden-fixsa-base, wrstuden-fixsa, netbsd-5-base, netbsd-4-base, netbsd-4-0-RELEASE, netbsd-4-0-RC5, netbsd-4-0-RC4, netbsd-4-0-RC3, netbsd-4-0-RC2, netbsd-4-0-RC1, netbsd-4-0-1-RELEASE, netbsd-4-0, netbsd-4, netbsd-3-base, netbsd-3-1-RELEASE, netbsd-3-1-RC4, netbsd-3-1-RC3, netbsd-3-1-RC2, netbsd-3-1-RC1, netbsd-3-1-1-RELEASE, netbsd-3-1, netbsd-3-0-RELEASE, netbsd-3-0-RC6, netbsd-3-0-RC5, netbsd-3-0-RC4, netbsd-3-0-RC3, netbsd-3-0-RC2, netbsd-3-0-RC1, netbsd-3-0-3-RELEASE, netbsd-3-0-2-RELEASE, netbsd-3-0-1-RELEASE, netbsd-3-0, netbsd-3, netbsd-2-base, netbsd-2-1-RELEASE, netbsd-2-1-RC6, netbsd-2-1-RC5, netbsd-2-1-RC4, netbsd-2-1-RC3, netbsd-2-1-RC2, netbsd-2-1-RC1, netbsd-2-1, netbsd-2-0-base, netbsd-2-0-RELEASE, netbsd-2-0-RC5, netbsd-2-0-RC4, netbsd-2-0-RC3, netbsd-2-0-RC2, netbsd-2-0-RC1, netbsd-2-0-3-RELEASE, netbsd-2-0-2-RELEASE, netbsd-2-0-1-RELEASE, netbsd-2-0, netbsd-2, mjf-devfs2-base, mjf-devfs2, matt-mips64-base2, matt-mips64-base, matt-mips64, matt-armv6-prevmlocking, matt-armv6-nbase, matt-armv6-base, matt-armv6, keiichi-mipv6-base, keiichi-mipv6, hpcarm-cleanup-nbase, hpcarm-cleanup-base, hpcarm-cleanup, cube-autoconf-base, cube-autoconf, abandoned-netbsd-4-base, abandoned-netbsd-4
Branch point for: netbsd-5, christos-time_t
Changes since 1.2: +2 -2 lines

The fourth parameter of _citrus_ctype_mbrtowc() is a size_t, not a
pointer type. So use 0 instead of NULL.

/*	$NetBSD: multibyte.h,v 1.3 2003/04/29 14:53:12 scw Exp $	*/

/*-
 * Copyright (c)2002 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.
 */

#ifndef _MULTIBYTE_H_
#define _MULTIBYTE_H_

/* mbstate_t private */

#ifdef _BSD_MBSTATE_T_
typedef	_BSD_MBSTATE_T_	mbstate_t;
#undef _BSD_MBSTATE_T_
#endif

typedef struct _RuneStatePriv {
	_RuneLocale	*__runelocale;
	char		__private __attribute__((__aligned__));
} _RuneStatePriv;

typedef union _RuneState {
	mbstate_t		__pad;
	struct _RuneStatePriv	__priv;
#define rs_runelocale		__priv.__runelocale
#define rs_private		__priv.__private
} _RuneState;
#define _PRIVSIZE	(sizeof(mbstate_t)-offsetof(_RuneStatePriv, __private))


/* */

static __inline _citrus_ctype_t
_to_cur_ctype(void)
{
	return (_CurrentRuneLocale->rl_citrus_ctype);
}

static __inline _RuneState *
_ps_to_runestate(mbstate_t *ps)
{
	return (_RuneState *)(void *)ps;
}

static __inline _RuneState const *
_ps_to_runestate_const(mbstate_t const *ps)
{
	return (_RuneState const *)(void const *)ps;
}

static __inline _RuneLocale *
_ps_to_runelocale(mbstate_t const *ps)
{
	return _ps_to_runestate_const(ps)->rs_runelocale;
}

static __inline _citrus_ctype_t
_ps_to_ctype(mbstate_t const *ps)
{
	if (!ps)
		return _to_cur_ctype();

	_DIAGASSERT(_ps_to_runelocale(ps) != NULL);

	return _ps_to_runelocale(ps)->rl_citrus_ctype;
}

static __inline void *
_ps_to_private(mbstate_t *ps)
{
	if (ps == NULL)
		return NULL;
	return (void *)&_ps_to_runestate(ps)->rs_private;
}

static __inline void const *
_ps_to_private_const(mbstate_t const *ps)
{
	if (ps == NULL)
		return NULL;
	return (void const *)&_ps_to_runestate_const(ps)->rs_private;
}

static __inline void
_init_ps(_RuneLocale *rl, mbstate_t *ps)
{
	size_t dum;
	_ps_to_runestate(ps)->rs_runelocale = rl;
	_citrus_ctype_mbrtowc(rl->rl_citrus_ctype, NULL, NULL, 0,
			      _ps_to_private(ps), &dum);
}

static __inline void
_fixup_ps(_RuneLocale *rl, mbstate_t *ps, int forceinit)
{
	/* for future multi-locale facility */
	_DIAGASSERT(rl != NULL);

	if (ps != NULL && (_ps_to_runelocale(ps) == NULL || forceinit)) {
		_init_ps(rl, ps);
	}
}

#endif