ansi.h   [plain text]


/*-
 * Copyright (c) 1990, 1993
 *	The Regents of the University of California.  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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
 *
 *	@(#)ansi.h	8.2 (Berkeley) 1/4/94
 */

#ifndef	_ANSI_H_
#define	_ANSI_H_

/*
 * Types which are fundamental to the implementation and may appear in
 * more than one standard header are defined here.  Standard headers
 * then use:
 *	#ifdef	_BSD_SIZE_T_
 *	typedef	_BSD_SIZE_T_ size_t;
 *	#undef	_BSD_SIZE_T_
 *	#endif
 */
#define	_BSD_CLOCK_T_	unsigned long		/* clock() */
#if defined(__GNUC__) && defined(__PTRDIFF_TYPE__) && defined(__SIZE_TYPE__)
#define _BSD_PTRDIFF_T_ __PTRDIFF_TYPE__        /* ptr1 - ptr2 */
#define _BSD_SIZE_T_    __SIZE_TYPE__           /* sizeof() */
#else
#define	_BSD_PTRDIFF_T_	int			/* ptr1 - ptr2 */
#define	_BSD_SIZE_T_	unsigned long		/* sizeof() */
#endif /* __GNUC__ */
#define	_BSD_SSIZE_T_	int			/* byte count or error */
#define	_BSD_TIME_T_	long			/* time() */
#if (__GNUC__ > 2)
#define	_BSD_VA_LIST_	__builtin_va_list	/* va_list */
#else
#define	_BSD_VA_LIST_	char *			/* va_list */
#endif
#define _BSD_RUNE_T_    _BSD_CT_RUNE_T_
#define _BSD_WCHAR_T_   _BSD_CT_RUNE_T_
#define _BSD_WINT_T_    _BSD_CT_RUNE_T_
#define _BSD_MBSTATE_T_ __mbstate_t             /* mbstate_t */

/*
 * The rune type above is declared to be an ``int'' instead of the more natural
 * ``unsigned long'' or ``long''.  Two things are happening here.  It is not
 * unsigned so that EOF (-1) can be naturally assigned to it and used.  Also,
 * it looks like 10646 will be a 31 bit standard.  This means that if your
 * ints cannot hold 32 bits, you will be in trouble.  The reason an int was
 * chosen over a long is that the is*() and to*() routines take ints (says
 * ANSI C), but they use _BSD_CT_RUNE_T_ instead of int.  By changing it
 * here, you lose a bit of ANSI conformance, but your programs will still
 * work.
 *
 * NOTE: rune_t is not covered by ANSI nor other standards, and should not
 * be instantiated outside of lib/libc/locale.  Use wchar_t.  wchar_t and
 * rune_t must be the same type.  Also wint_t must be no narrower than
 * wchar_t, and should also be able to hold all members of the largest
 * character set plus one extra value (WEOF). wint_t must be at least 16 bits.
 */

#define _BSD_CT_RUNE_T_ int                     /* arg type for ctype funcs */

/*
 * mbstate_t is an opaque object to keep conversion state, during multibyte
 * stream conversions.  The content must not be referenced by user programs.
 */
typedef union {
	char		__mbstate8[128];
	long long	_mbstateL;              /* for alignment */
} __mbstate_t;

#endif	/* _ANSI_H_ */