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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)ansi.h 8.2 (Berkeley) 1/4/94
34 * $FreeBSD: src/sys/i386/include/ansi.h,v 1.10.2.1 1999/09/05 08:11:35 peter Exp $
35 */
36
37 #ifndef _MACHINE_ANSI_H_
38 #define _MACHINE_ANSI_H_
39
40 /*
41 * Types which are fundamental to the implementation and must be declared
42 * in more than one standard header are defined here. Standard headers
43 * then use:
44 * #ifdef _BSD_SIZE_T_
45 * typedef _BSD_SIZE_T_ size_t;
46 * #undef _BSD_SIZE_T_
47 * #endif
48 */
49 #define _BSD_CLOCK_T_ unsigned long /* clock() */
50 #define _BSD_PTRDIFF_T_ int /* ptr1 - ptr2 */
51 #define _BSD_RUNE_T_ _BSD_CT_RUNE_T_ /* rune_t (see below) */
52 #define _BSD_SIZE_T_ unsigned int /* sizeof() */
53 #define _BSD_SSIZE_T_ int /* byte count or error */
54 #define _BSD_TIME_T_ long /* time() */
55 #define _BSD_WCHAR_T_ _BSD_CT_RUNE_T_ /* wchar_t (see below) */
56
57 /*
58 * Types which are fundamental to the implementation and must be used
59 * in more than one standard header although they are only declared in
60 * one (perhaps nonstandard) header are defined here. Standard headers
61 * use _BSD_XXX_T_ without undef'ing it.
62 */
63 #define _BSD_CT_RUNE_T_ int /* arg type for ctype funcs */
64 #define _BSD_OFF_T_ long long /* file offset */
65 #define _BSD_PID_T_ int /* process [group] */
66 #define _BSD_VA_LIST_ char * /* va_list */
67
68 /*
69 * The rune type is declared to be an ``int'' instead of the more natural
70 * ``unsigned long'' or ``long''. Two things are happening here. It is not
71 * unsigned so that EOF (-1) can be naturally assigned to it and used. Also,
72 * it looks like 10646 will be a 31 bit standard. This means that if your
73 * ints cannot hold 32 bits, you will be in trouble. The reason an int was
74 * chosen over a long is that the is*() and to*() routines take ints (says
75 * ANSI C), but they use _BSD_CT_RUNE_T_ instead of int. By changing it
76 * here, you lose a bit of ANSI conformance, but your programs will still
77 * work.
78 */
79
80 /*
81 * Frequencies of the clock ticks reported by clock() and times(). They
82 * are the same as stathz for bogus historical reasons. They should be
83 * 1e6 because clock() and times() are implemented using getrusage() and
84 * there is no good reason why they should be less accurate. There is
85 * the bad reason that (broken) programs might not like clock_t or
86 * CLOCKS_PER_SEC being ``double'' (``unsigned long'' is not large enough
87 * to hold the required 24 hours worth of ticks if the frequency is
88 * 1000000ul, and ``unsigned long long'' would be nonstandard).
89 */
90 #define _BSD_CLK_TCK_ 128
91 #define _BSD_CLOCKS_PER_SEC_ 128
92
93 #endif /* !_MACHINE_ANSI_H_ */
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