[apple/xnu.git] / EXTERNAL_HEADERS / bsd / i386 / limits.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * Copyright (c) 1988, 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.
 *
 *	@(#)limits.h	8.3 (Berkeley) 1/4/94
 */
/*
 * HISTORY
 *
 *	10-July-97  Umesh Vaishampayan  (umeshv@apple.com)
 *		Avoid multiple includes. 
 */

#ifndef _I386_LIMITS_H_
#define _I386_LIMITS_H_

#define	CHAR_BIT	8		/* number of bits in a char */
#define	MB_LEN_MAX	6		/* Allow 31 bit UTF2 */


#define	CLK_TCK		100		/* ticks per second */

/*
 * According to ANSI (section 2.2.4.2), the values below must be usable by
 * #if preprocessing directives.  Additionally, the expression must have the
 * same type as would an expression that is an object of the corresponding
 * type converted according to the integral promotions.  The subtraction for
 * INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an
 * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
 * These numbers work for pcc as well.  The UINT_MAX and ULONG_MAX values
 * are written as hex so that GCC will be quiet about large integer constants.
 */
#define	SCHAR_MAX	127		/* min value for a signed char */
#define	SCHAR_MIN	(-128)		/* max value for a signed char */

#define	UCHAR_MAX	255		/* max value for an unsigned char */
#define	CHAR_MAX	127		/* max value for a char */
#define	CHAR_MIN	(-128)		/* min value for a char */

#define	USHRT_MAX	65535		/* max value for an unsigned short */
#define	SHRT_MAX	32767		/* max value for a short */
#define	SHRT_MIN	(-32768)	/* min value for a short */

#define	UINT_MAX	0xffffffff	/* max value for an unsigned int */
#define	INT_MAX		2147483647	/* max value for an int */
#define	INT_MIN		(-2147483647-1)	/* min value for an int */

#define	ULONG_MAX	0xffffffff	/* max value for an unsigned long */
#define	LONG_MAX	2147483647	/* max value for a long */
#define	LONG_MIN	(-2147483647-1)	/* min value for a long */

#if !defined(_ANSI_SOURCE)
#define	SSIZE_MAX	INT_MAX		/* max value for a ssize_t */

#if !defined(_POSIX_SOURCE)
#define	SIZE_T_MAX	UINT_MAX	/* max value for a size_t */

/* GCC requires that quad constants be written as expressions. */
#define	UQUAD_MAX	((u_quad_t)0-1)	/* max value for a uquad_t */
					/* max value for a quad_t */
#define	QUAD_MAX	((quad_t)(UQUAD_MAX >> 1))
#define	QUAD_MIN	(-QUAD_MAX-1)	/* min value for a quad_t */

#endif /* !_POSIX_SOURCE */
#endif /* !_ANSI_SOURCE */

#endif /* _I386_LIMITS_H_ */
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
de355530 A	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
1c79356b	11	*
de355530 A	12	* This Original Code and all software distributed under the License are
de355530 A	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
de355530 A	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
1c79356b A	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* Copyright (c) 1988, 1993
	24	* The Regents of the University of California. All rights reserved.
	25	*
	26	* Redistribution and use in source and binary forms, with or without
	27	* modification, are permitted provided that the following conditions
	28	* are met:
	29	* 1. Redistributions of source code must retain the above copyright
	30	* notice, this list of conditions and the following disclaimer.
	31	* 2. Redistributions in binary form must reproduce the above copyright
	32	* notice, this list of conditions and the following disclaimer in the
	33	* documentation and/or other materials provided with the distribution.
	34	* 3. All advertising materials mentioning features or use of this software
	35	* must display the following acknowledgement:
	36	* This product includes software developed by the University of
	37	* California, Berkeley and its contributors.
	38	* 4. Neither the name of the University nor the names of its contributors
	39	* may be used to endorse or promote products derived from this software
	40	* without specific prior written permission.
	41	*
	42	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	43	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	44	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	45	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	46	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	47	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	48	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	49	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	50	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	51	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	52	* SUCH DAMAGE.
	53	*
	54	* @(#)limits.h 8.3 (Berkeley) 1/4/94
	55	*/
	56	/*
	57	* HISTORY
	58	*
	59	* 10-July-97 Umesh Vaishampayan (umeshv@apple.com)
	60	* Avoid multiple includes.
	61	*/
	62
	63	#ifndef _I386_LIMITS_H_
	64	#define _I386_LIMITS_H_
	65
	66	#define CHAR_BIT 8 /* number of bits in a char */
	67	#define MB_LEN_MAX 6 /* Allow 31 bit UTF2 */
	68
	69
	70	#define CLK_TCK 100 /* ticks per second */
	71
	72	/*
	73	* According to ANSI (section 2.2.4.2), the values below must be usable by
	74	* #if preprocessing directives. Additionally, the expression must have the
	75	* same type as would an expression that is an object of the corresponding
	76	* type converted according to the integral promotions. The subtraction for
	77	* INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an
	78	* unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
	79	* These numbers work for pcc as well. The UINT_MAX and ULONG_MAX values
	80	* are written as hex so that GCC will be quiet about large integer constants.
	81	*/
	82	#define SCHAR_MAX 127 /* min value for a signed char */
83	#define SCHAR_MIN (-128) /* max value for a signed char */
84
85	#define UCHAR_MAX 255 /* max value for an unsigned char */
86	#define CHAR_MAX 127 /* max value for a char */
87	#define CHAR_MIN (-128) /* min value for a char */
88
89	#define USHRT_MAX 65535 /* max value for an unsigned short */
90	#define SHRT_MAX 32767 /* max value for a short */
91	#define SHRT_MIN (-32768) /* min value for a short */
92
93	#define UINT_MAX 0xffffffff /* max value for an unsigned int */
94	#define INT_MAX 2147483647 /* max value for an int */
95	#define INT_MIN (-2147483647-1) /* min value for an int */
96
97	#define ULONG_MAX 0xffffffff /* max value for an unsigned long */
98	#define LONG_MAX 2147483647 /* max value for a long */
99	#define LONG_MIN (-2147483647-1) /* min value for a long */
100
101	#if !defined(_ANSI_SOURCE)
102	#define SSIZE_MAX INT_MAX /* max value for a ssize_t */
103
104	#if !defined(_POSIX_SOURCE)
105	#define SIZE_T_MAX UINT_MAX /* max value for a size_t */
106
107	/* GCC requires that quad constants be written as expressions. */
108	#define UQUAD_MAX ((u_quad_t)0-1) /* max value for a uquad_t */
109	/* max value for a quad_t */
110	#define QUAD_MAX ((quad_t)(UQUAD_MAX >> 1))
111	#define QUAD_MIN (-QUAD_MAX-1) /* min value for a quad_t */
112
113	#endif /* !_POSIX_SOURCE */
114	#endif /* !_ANSI_SOURCE */
115
116	#endif /* _I386_LIMITS_H_ */