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libkern.h revision 1.31
      1 /*	$NetBSD: libkern.h,v 1.31 2000/10/12 03:42:33 msaitoh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1992, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  *
     35  *	@(#)libkern.h	8.2 (Berkeley) 8/5/94
     36  */
     37 
     38 #ifndef _LIB_LIBKERN_LIBKERN_H_
     39 #define _LIB_LIBKERN_LIBKERN_H_
     40 
     41 #include <sys/types.h>
     42 
     43 #ifndef LIBKERN_INLINE
     44 #define LIBKERN_INLINE	static __inline
     45 #define LIBKERN_BODY
     46 #endif
     47 
     48 LIBKERN_INLINE int imax __P((int, int)) __attribute__ ((unused));
     49 LIBKERN_INLINE int imin __P((int, int)) __attribute__ ((unused));
     50 LIBKERN_INLINE u_int max __P((u_int, u_int)) __attribute__ ((unused));
     51 LIBKERN_INLINE u_int min __P((u_int, u_int)) __attribute__ ((unused));
     52 LIBKERN_INLINE long lmax __P((long, long)) __attribute__ ((unused));
     53 LIBKERN_INLINE long lmin __P((long, long)) __attribute__ ((unused));
     54 LIBKERN_INLINE u_long ulmax __P((u_long, u_long)) __attribute__ ((unused));
     55 LIBKERN_INLINE u_long ulmin __P((u_long, u_long)) __attribute__ ((unused));
     56 LIBKERN_INLINE int abs __P((int)) __attribute__ ((unused));
     57 
     58 #ifdef LIBKERN_BODY
     59 LIBKERN_INLINE int
     60 imax(a, b)
     61 	int a, b;
     62 {
     63 	return (a > b ? a : b);
     64 }
     65 LIBKERN_INLINE int
     66 imin(a, b)
     67 	int a, b;
     68 {
     69 	return (a < b ? a : b);
     70 }
     71 LIBKERN_INLINE long
     72 lmax(a, b)
     73 	long a, b;
     74 {
     75 	return (a > b ? a : b);
     76 }
     77 LIBKERN_INLINE long
     78 lmin(a, b)
     79 	long a, b;
     80 {
     81 	return (a < b ? a : b);
     82 }
     83 LIBKERN_INLINE u_int
     84 max(a, b)
     85 	u_int a, b;
     86 {
     87 	return (a > b ? a : b);
     88 }
     89 LIBKERN_INLINE u_int
     90 min(a, b)
     91 	u_int a, b;
     92 {
     93 	return (a < b ? a : b);
     94 }
     95 LIBKERN_INLINE u_long
     96 ulmax(a, b)
     97 	u_long a, b;
     98 {
     99 	return (a > b ? a : b);
    100 }
    101 LIBKERN_INLINE u_long
    102 ulmin(a, b)
    103 	u_long a, b;
    104 {
    105 	return (a < b ? a : b);
    106 }
    107 
    108 LIBKERN_INLINE int
    109 abs(j)
    110 	int j;
    111 {
    112 	return(j < 0 ? -j : j);
    113 }
    114 #endif
    115 
    116 #ifdef NDEBUG						/* tradition! */
    117 #define	assert(e)	((void)0)
    118 #else
    119 #ifdef __STDC__
    120 #define	assert(e)	(__predict_true((e)) ? (void)0 :		    \
    121 			    __assert("", __FILE__, __LINE__, #e))
    122 #else
    123 #define	assert(e)	(__predict_true((e)) ? (void)0 :		    \
    124 			    __assert("", __FILE__, __LINE__, "e"))
    125 #endif
    126 #endif
    127 
    128 #ifndef DIAGNOSTIC
    129 #define	KASSERT(e)	((void)0)
    130 #else
    131 #ifdef __STDC__
    132 #define	KASSERT(e)	(__predict_true((e)) ? (void)0 :		    \
    133 			    __assert("diagnostic ", __FILE__, __LINE__, #e))
    134 #else
    135 #define	KASSERT(e)	(__predict_true((e)) ? (void)0 :		    \
    136 			    __assert("diagnostic ", __FILE__, __LINE__, "e"))
    137 #endif
    138 #endif
    139 
    140 #ifndef DEBUG
    141 #define	KDASSERT(e)	((void)0)
    142 #else
    143 #ifdef __STDC__
    144 #define	KDASSERT(e)	(__predict_true((e)) ? (void)0 :		    \
    145 			    __assert("debugging ", __FILE__, __LINE__, #e))
    146 #else
    147 #define	KDASSERT(e)	(__predict_true((e)) ? (void)0 :		    \
    148 			    __assert("debugging ", __FILE__, __LINE__, "e"))
    149 #endif
    150 #endif
    151 
    152 #ifndef offsetof
    153 #define	offsetof(type, member)	((size_t)(&((type *)0)->member))
    154 #endif
    155 
    156 /* Prototypes for non-quad routines. */
    157 void	 __assert __P((const char *, const char *, int, const char *))
    158 	    __attribute__((__noreturn__));
    159 int	 bcmp __P((const void *, const void *, size_t));
    160 void	 bzero __P((void *, size_t));
    161 int	 ffs __P((int));
    162 u_int32_t
    163 	 inet_addr __P((const char *));
    164 char	*intoa __P((u_int32_t));
    165 #define inet_ntoa(a) intoa((a).s_addr)
    166 void	*memchr __P((const void *, int, size_t));
    167 int	 memcmp __P((const void *, const void *, size_t));
    168 void	*memcpy __P((void *, const void *, size_t));
    169 void	*memmove __P((void *, const void *, size_t));
    170 void	*memset __P((void *, int, size_t));
    171 int	 pmatch __P((const char *, const char *, const char **));
    172 u_long	 random __P((void));
    173 int	 scanc __P((u_int, const u_char *, const u_char *, int));
    174 int	 skpc __P((int, size_t, u_char *));
    175 char	*strcat __P((char *, const char *));
    176 char	*strchr __P((const char *, int));
    177 int	 strcmp __P((const char *, const char *));
    178 char	*strcpy __P((char *, const char *));
    179 size_t	 strlen __P((const char *));
    180 int	 strncasecmp __P((const char *, const char *, size_t));
    181 int	 strncmp __P((const char *, const char *, size_t));
    182 char	*strncpy __P((char *, const char *, size_t));
    183 char	*strrchr __P((const char *, int));
    184 u_long	 strtoul __P((const char *, char **, int));
    185 #endif /* !_LIB_LIBKERN_LIBKERN_H_ */
    186