2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#)libkern.h 8.1 (Berkeley) 6/10/93
34 * $FreeBSD: src/sys/sys/libkern.h,v 1.20.2.2 2001/09/30 21:12:54 luigi Exp $
37 #ifndef _SYS_LIBKERN_H_
38 #define _SYS_LIBKERN_H_
40 #include <sys/cdefs.h>
41 #include <sys/types.h>
43 #include <sys/systm.h>
46 /* BCD conversions. */
47 extern u_char const bcd2bin_data[];
48 extern u_char const bin2bcd_data[];
49 extern char const hex2ascii_data[];
51 #define bcd2bin(bcd) (bcd2bin_data[bcd])
52 #define bin2bcd(bin) (bin2bcd_data[bin])
53 #define hex2ascii(hex) (hex2ascii_data[hex])
55 static __inline int imax(int a, int b) { return (a > b ? a : b); }
56 static __inline int imin(int a, int b) { return (a < b ? a : b); }
57 static __inline long lmax(long a, long b) { return (a > b ? a : b); }
58 static __inline long lmin(long a, long b) { return (a < b ? a : b); }
59 static __inline u_int max(u_int a, u_int b) { return (a > b ? a : b); }
60 static __inline u_int min(u_int a, u_int b) { return (a < b ? a : b); }
61 static __inline quad_t qmax(quad_t a, quad_t b) { return (a > b ? a : b); }
62 static __inline quad_t qmin(quad_t a, quad_t b) { return (a < b ? a : b); }
63 static __inline u_long ulmax(u_long a, u_long b) { return (a > b ? a : b); }
64 static __inline u_long ulmin(u_long a, u_long b) { return (a < b ? a : b); }
66 /* Prototypes for non-quad routines. */
67 u_int32_t arc4random __P((void));
68 int bcmp __P((const void *, const void *, size_t));
69 #ifndef HAVE_INLINE_FFS
72 #ifndef HAVE_INLINE_FLS
75 int locc __P((int, char *, u_int));
76 void qsort __P((void *base, size_t nmemb, size_t size,
77 int (*compar)(const void *, const void *)));
78 u_long random __P((void));
79 char *index __P((const char *, int));
80 char *rindex __P((const char *, int));
81 int scanc __P((u_int, const u_char *, const u_char *, int));
82 int skpc __P((int, int, char *));
83 void srandom __P((u_long));
84 char *strcat __P((char *, const char *));
85 int strcmp __P((const char *, const char *));
86 char *strcpy __P((char *, const char *));
87 size_t strlen __P((const char *));
88 int strncmp __P((const char *, const char *, size_t));
89 char *strncpy __P((char *, const char *, size_t));
93 memcmp(const void *b1, const void *b2, size_t len)
95 return (bcmp(b1, b2, len));
98 static __inline void *
99 memset(void *b, int c, size_t len)
106 for (bb = (char *)b; len--; )
111 #endif /* !_SYS_LIBKERN_H_ */