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Annotation of prex-old/include/i386/ansi.h, Revision 1.1

1.1     ! nbrk        1: /*-
        !             2:  * Copyright (c) 1990, 1993
        !             3:  *     The Regents of the University of California.  All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. Neither the name of the University nor the names of its contributors
        !            14:  *    may be used to endorse or promote products derived from this software
        !            15:  *    without specific prior written permission.
        !            16:  *
        !            17:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            18:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            19:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            20:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            21:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            22:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            23:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            24:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            25:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            26:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            27:  * SUCH DAMAGE.
        !            28:  *
        !            29:  *     @(#)ansi.h      8.2 (Berkeley) 1/4/94
        !            30:  */
        !            31:
        !            32: #ifndef        _I386_ANSI_H
        !            33: #define        _I386_ANSI_H
        !            34:
        !            35: #include <sys/cdefs.h>
        !            36:
        !            37: /*
        !            38:  * Types which are fundamental to the implementation and may appear in
        !            39:  * more than one standard header are defined here.  Standard headers
        !            40:  * then use:
        !            41:  *     #ifdef  _BSD_SIZE_T_
        !            42:  *     typedef _BSD_SIZE_T_ size_t;
        !            43:  *     #undef  _BSD_SIZE_T_
        !            44:  *     #endif
        !            45:  */
        !            46: #define        _BSD_CLOCK_T_           unsigned long   /* clock() */
        !            47: #define        _BSD_PTRDIFF_T_         int             /* ptr1 - ptr2 */
        !            48: #define        _BSD_SIZE_T_            unsigned int    /* sizeof() */
        !            49: #define        _BSD_SSIZE_T_           int             /* byte count or error */
        !            50: #define        _BSD_TIME_T_            long            /* time() */
        !            51: #ifdef __GNUC__
        !            52: #define        _BSD_VA_LIST_           __builtin_va_list /* GCC built-in type */
        !            53: #else
        !            54: #define        _BSD_VA_LIST_           char *          /* va_list */
        !            55: #endif
        !            56: /*
        !            57:  * Runes (wchar_t) is declared to be an ``int'' instead of the more natural
        !            58:  * ``unsigned long'' or ``long''.  Two things are happening here.  It is not
        !            59:  * unsigned so that EOF (-1) can be naturally assigned to it and used.  Also,
        !            60:  * it looks like 10646 will be a 31 bit standard.  This means that if your
        !            61:  * ints cannot hold 32 bits, you will be in trouble.  The reason an int was
        !            62:  * chosen over a long is that the is*() and to*() routines take ints (says
        !            63:  * ANSI C), but they use _RUNE_T_ instead of int.  By changing it here, you
        !            64:  * lose a bit of ANSI conformance, but your programs will still work.
        !            65:  *
        !            66:  * Note that _WCHAR_T_ and _RUNE_T_ must be of the same type.  When wchar_t
        !            67:  * and rune_t are typedef'd, _WCHAR_T_ will be undef'd, but _RUNE_T remains
        !            68:  * defined for ctype.h.
        !            69:  */
        !            70: #define        _BSD_WCHAR_T_           int             /* wchar_t */
        !            71: #define        _BSD_RUNE_T_            int             /* rune_t */
        !            72:
        !            73: #endif /* _I386_ANSI_H */