usr/dash/shell.h

/*-
 * Copyright (c) 1991, 1993
 *	The Regents of the University of California.  All rights reserved.
 * Copyright (c) 1997-2005
 *	Herbert Xu <herbert@gondor.apana.org.au>.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Kenneth Almquist.
 *
 * 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. 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.
 *
 *	@(#)shell.h	8.2 (Berkeley) 5/4/95
 */

/*
 * The follow should be set to reflect the type of system you have:
 *	JOBS -> 1 if you have Berkeley job control, 0 otherwise.
 *	SHORTNAMES -> 1 if your linker cannot handle long names.
 *	define BSD if you are running 4.2 BSD or later.
 *	define SYSV if you are running under System V.
 *	define DEBUG=1 to compile in debugging ('set -o debug' to turn on)
 *	define DEBUG=2 to compile in and turn on debugging.
 *	define DO_SHAREDVFORK to indicate that vfork(2) shares its address
 *	       with its parent.
 *
 * When debugging is on, debugging info will be written to ./trace and
 * a quit signal will generate a core dump.
 */

#include <sys/param.h>

#ifndef JOBS
#define JOBS 1
#endif
#ifndef BSD
#define BSD 1
#endif

#ifndef DO_SHAREDVFORK
#if __NetBSD_Version__ >= 104000000
#define DO_SHAREDVFORK
#endif
#endif

typedef void *pointer;
#ifndef NULL
#define NULL (void *)0
#endif
#define STATIC static
#define MKINIT	/* empty */

extern char nullstr[1];		/* null string */


#ifdef DEBUG
#define TRACE(param)	trace param
#define TRACEV(param)	tracev param
#else
#define TRACE(param)
#define TRACEV(param)
#endif

#if defined(__GNUC__) && __GNUC__ < 3
#define va_copy __va_copy
#endif

#if !defined(__GNUC__) || (__GNUC__ == 2 && __GNUC_MINOR__ < 96)
#define __builtin_expect(x, expected_value) (x)
#endif

#define likely(x)	__builtin_expect(!!(x),1)
#define unlikely(x)	__builtin_expect(!!(x),0)

/*
 * Hack to calculate maximum length.
 * (length * 8 - 1) * log10(2) + 1 + 1 + 12
 * The second 1 is for the minus sign and the 12 is a safety margin.
 */
static inline int max_int_length(int bytes)
{
	return (bytes * 8 - 1) * 0.30102999566398119521 + 14;
}
1	niro	532	/*-
2			* Copyright (c) 1991, 1993
3			* The Regents of the University of California. All rights reserved.
4			* Copyright (c) 1997-2005
5			* Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved.
6			*
7			* This code is derived from software contributed to Berkeley by
8			* Kenneth Almquist.
9			*
10			* Redistribution and use in source and binary forms, with or without
11			* modification, are permitted provided that the following conditions
12			* are met:
13			* 1. Redistributions of source code must retain the above copyright
14			* notice, this list of conditions and the following disclaimer.
15			* 2. Redistributions in binary form must reproduce the above copyright
16			* notice, this list of conditions and the following disclaimer in the
17			* documentation and/or other materials provided with the distribution.
18			* 3. Neither the name of the University nor the names of its contributors
19			* may be used to endorse or promote products derived from this software
20			* without specific prior written permission.
21			*
22			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32			* SUCH DAMAGE.
33			*
34			* @(#)shell.h 8.2 (Berkeley) 5/4/95
35			*/
36
37			/*
38			* The follow should be set to reflect the type of system you have:
39			* JOBS -> 1 if you have Berkeley job control, 0 otherwise.
40			* SHORTNAMES -> 1 if your linker cannot handle long names.
41			* define BSD if you are running 4.2 BSD or later.
42			* define SYSV if you are running under System V.
43			* define DEBUG=1 to compile in debugging ('set -o debug' to turn on)
44			* define DEBUG=2 to compile in and turn on debugging.
45			* define DO_SHAREDVFORK to indicate that vfork(2) shares its address
46			* with its parent.
47			*
48			* When debugging is on, debugging info will be written to ./trace and
49			* a quit signal will generate a core dump.
50			*/
51
52			#include <sys/param.h>
53
54			#ifndef JOBS
55			#define JOBS 1
56			#endif
57			#ifndef BSD
58			#define BSD 1
59			#endif
60
61			#ifndef DO_SHAREDVFORK
62			#if __NetBSD_Version__ >= 104000000
63			#define DO_SHAREDVFORK
64			#endif
65			#endif
66
67			typedef void *pointer;
68			#ifndef NULL
69			#define NULL (void *)0
70			#endif
71			#define STATIC static
72			#define MKINIT /* empty */
73
74			extern char nullstr[1]; /* null string */
75
76
77			#ifdef DEBUG
78			#define TRACE(param) trace param
79			#define TRACEV(param) tracev param
80			#else
81			#define TRACE(param)
82			#define TRACEV(param)
83			#endif
84
85			#if defined(__GNUC__) && __GNUC__ < 3
86			#define va_copy __va_copy
87			#endif
88
89			#if !defined(__GNUC__) \|\| (__GNUC__ == 2 && __GNUC_MINOR__ < 96)
90			#define __builtin_expect(x, expected_value) (x)
91			#endif
92
93			#define likely(x) __builtin_expect(!!(x),1)
94			#define unlikely(x) __builtin_expect(!!(x),0)
95	niro	1122
96			/*
97			* Hack to calculate maximum length.
98			* (length * 8 - 1) * log10(2) + 1 + 1 + 12
99			* The second 1 is for the minus sign and the 12 is a safety margin.
100			*/
101			static inline int max_int_length(int bytes)
102			{
103			return (bytes * 8 - 1) * 0.30102999566398119521 + 14;
104			}