[apple/xnu.git] / bsd / libkern / libkern.h

/*
 * Copyright (c) 2000-2002 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) 1992, 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.
 *
 *	@(#)libkern.h	8.1 (Berkeley) 6/10/93
 */

#ifndef _LIBKERN_LIBKERN_H_
#define _LIBKERN_LIBKERN_H_

#include <sys/appleapiopts.h>
#include <sys/cdefs.h>
#include <sys/types.h>

#ifdef __APPLE_API_OBSOLETE
/* BCD conversions. */
extern u_char const	bcd2bin_data[];
extern u_char const	bin2bcd_data[];

#define	bcd2bin(bcd)	(bcd2bin_data[bcd])
#define	bin2bcd(bin)	(bin2bcd_data[bin])
#endif /* __APPLE_API_OBSOLETE */

#ifdef __APPLE_API_PRIVATE
extern char const	hex2ascii_data[];

#define	hex2ascii(hex)	(hex2ascii_data[hex])
#endif /* __APPLE_API_PRIVATE */

__BEGIN_DECLS
static inline int
imax(int a, int b)
{
	return (a > b ? a : b);
}
static inline int
imin(int a, int b)
{
	return (a < b ? a : b);
}
static inline long
lmax(long a, long b)
{
	return (a > b ? a : b);
}
static inline long
lmin(long a, long b)
{
	return (a < b ? a : b);
}
static inline u_int
max(u_int a, u_int b)
{
	return (a > b ? a : b);
}
static inline u_int
min(u_int a, u_int b)
{
	return (a < b ? a : b);
}
static inline u_long
ulmax(u_long a, u_long b)
{
	return (a > b ? a : b);
}
static inline u_long
ulmin(u_long a, u_long b)
{
	return (a < b ? a : b);
}

/* Prototypes for non-quad routines. */
int	 bcmp __P((const void *, const void *, size_t));
int	 ffs __P((int));
int	 locc __P((int, char *, u_int));
u_long	 random __P((void));
char	*rindex __P((const char *, int));
int	 scanc __P((u_int, u_char *, u_char *, int));
int	 skpc __P((int, int, char *));
char	*strcat __P((char *, const char *));
char	*strcpy __P((char *, const char *));
size_t	 strlen __P((const char *));
char	*strncpy __P((char *, const char *, size_t));
long	strtol __P((const char*, char **, int));
__END_DECLS

#endif /* _LIBKERN_LIBKERN_H_ */
Commit	Line	Data
1c79356b	1	/*
9bccf70c	2	* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
1c79356b A	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
e5568f75 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	*
e5568f75 A	12	* This Original Code and all software distributed under the License are
e5568f75 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,
e5568f75 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) 1992, 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	* @(#)libkern.h 8.1 (Berkeley) 6/10/93
	55	*/
	56
	57	#ifndef _LIBKERN_LIBKERN_H_
	58	#define _LIBKERN_LIBKERN_H_
	59
9bccf70c	60	#include <sys/appleapiopts.h>
1c79356b A	61	#include <sys/cdefs.h>
	62	#include <sys/types.h>
	63
9bccf70c	64	#ifdef __APPLE_API_OBSOLETE
1c79356b A	65	/* BCD conversions. */
	66	extern u_char const bcd2bin_data[];
	67	extern u_char const bin2bcd_data[];
1c79356b A	68
	69	#define bcd2bin(bcd) (bcd2bin_data[bcd])
	70	#define bin2bcd(bin) (bin2bcd_data[bin])
9bccf70c	71	#endif /* __APPLE_API_OBSOLETE */
1c79356b	72
9bccf70c A	73	#ifdef __APPLE_API_PRIVATE
	74	extern char const hex2ascii_data[];
	75
	76	#define hex2ascii(hex) (hex2ascii_data[hex])
	77	#endif /* __APPLE_API_PRIVATE */
1c79356b A	78
	79	__BEGIN_DECLS
	80	static inline int
	81	imax(int a, int b)
	82	{
	83	return (a > b ? a : b);
	84	}
	85	static inline int
	86	imin(int a, int b)
	87	{
	88	return (a < b ? a : b);
	89	}
	90	static inline long
	91	lmax(long a, long b)
	92	{
	93	return (a > b ? a : b);
	94	}
	95	static inline long
	96	lmin(long a, long b)
	97	{
	98	return (a < b ? a : b);
	99	}
	100	static inline u_int
	101	max(u_int a, u_int b)
	102	{
	103	return (a > b ? a : b);
	104	}
	105	static inline u_int
	106	min(u_int a, u_int b)
	107	{
	108	return (a < b ? a : b);
	109	}
	110	static inline u_long
	111	ulmax(u_long a, u_long b)
	112	{
	113	return (a > b ? a : b);
	114	}
	115	static inline u_long
	116	ulmin(u_long a, u_long b)
	117	{
	118	return (a < b ? a : b);
	119	}
	120
	121	/* Prototypes for non-quad routines. */
	122	int bcmp __P((const void , const void , size_t));
	123	int ffs __P((int));
	124	int locc __P((int, char *, u_int));
	125	u_long random __P((void));
	126	char rindex __P((const char , int));
	127	int scanc __P((u_int, u_char , u_char , int));
	128	int skpc __P((int, int, char *));
	129	char strcat __P((char , const char *));
	130	char strcpy __P((char , const char *));
	131	size_t strlen __P((const char *));
	132	char strncpy __P((char , const char *, size_t));
	133	long strtol __P((const char, char *, int));
	134	__END_DECLS
	135
	136	#endif /* _LIBKERN_LIBKERN_H_ */