1 /* $OpenBSD: libkern.h,v 1.19 2003/06/23 21:02:27 millert Exp $ */ 2 /* $NetBSD: libkern.h,v 1.7 1996/03/14 18:52:08 christos Exp $ */ 3 4 /*- 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)libkern.h 8.1 (Berkeley) 6/10/93 33 */ 34 35 #ifndef __LIBKERN_H__ 36 #define __LIBKERN_H__ 37 38 #include <sys/types.h> 39 40 #ifndef LIBKERN_INLINE 41 #define LIBKERN_INLINE static __inline 42 #define LIBKERN_BODY 43 #endif 44 45 46 LIBKERN_INLINE int imax(int, int); 47 LIBKERN_INLINE int imin(int, int); 48 LIBKERN_INLINE u_int max(u_int, u_int); 49 LIBKERN_INLINE u_int min(u_int, u_int); 50 LIBKERN_INLINE long lmax(long, long); 51 LIBKERN_INLINE long lmin(long, long); 52 LIBKERN_INLINE u_long ulmax(u_long, u_long); 53 LIBKERN_INLINE u_long ulmin(u_long, u_long); 54 LIBKERN_INLINE int abs(int); 55 56 #ifdef LIBKERN_BODY 57 LIBKERN_INLINE int 58 imax(a, b) 59 int a, b; 60 { 61 return (a > b ? a : b); 62 } 63 LIBKERN_INLINE int 64 imin(a, b) 65 int a, b; 66 { 67 return (a < b ? a : b); 68 } 69 LIBKERN_INLINE long 70 lmax(a, b) 71 long a, b; 72 { 73 return (a > b ? a : b); 74 } 75 LIBKERN_INLINE long 76 lmin(a, b) 77 long a, b; 78 { 79 return (a < b ? a : b); 80 } 81 LIBKERN_INLINE u_int 82 max(a, b) 83 u_int a, b; 84 { 85 return (a > b ? a : b); 86 } 87 LIBKERN_INLINE u_int 88 min(a, b) 89 u_int a, b; 90 { 91 return (a < b ? a : b); 92 } 93 LIBKERN_INLINE u_long 94 ulmax(a, b) 95 u_long a, b; 96 { 97 return (a > b ? a : b); 98 } 99 LIBKERN_INLINE u_long 100 ulmin(a, b) 101 u_long a, b; 102 { 103 return (a < b ? a : b); 104 } 105 106 LIBKERN_INLINE int 107 abs(j) 108 int j; 109 { 110 return(j < 0 ? -j : j); 111 } 112 #endif 113 114 #ifdef NDEBUG /* tradition! */ 115 #define assert(e) ((void)0) 116 #else 117 #ifdef __STDC__ 118 #define assert(e) ((e) ? (void)0 : \ 119 __assert("", __FILE__, __LINE__, #e)) 120 #else 121 #define assert(e) ((e) ? (void)0 : \ 122 __assert("", __FILE__, __LINE__, "e")) 123 #endif 124 #endif 125 126 #ifndef DIAGNOSTIC 127 #define KASSERT(e) ((void)0) 128 #else 129 #ifdef __STDC__ 130 #define KASSERT(e) ((e) ? (void)0 : \ 131 __assert("diagnostic ", __FILE__, __LINE__, #e)) 132 #else 133 #define KASSERT(e) ((e) ? (void)0 : \ 134 __assert("diagnostic ", __FILE__, __LINE__, "e")) 135 #endif 136 #endif 137 138 #ifndef DEBUG 139 #define KDASSERT(e) ((void)0) 140 #else 141 #ifdef __STDC__ 142 #define KDASSERT(e) ((e) ? (void)0 : \ 143 __assert("debugging ", __FILE__, __LINE__, #e)) 144 #else 145 #define KDASSERT(e) ((e) ? (void)0 : \ 146 __assert("debugging ", __FILE__, __LINE__, "e")) 147 #endif 148 #endif 149 150 /* Prototypes for non-quad routines. */ 151 void __assert(const char *, const char *, int, const char *) 152 __attribute__ ((__noreturn__)); 153 int bcmp(const void *, const void *, size_t); 154 int ffs(int); 155 int locc(int, char *, u_int); 156 void *memchr(const void *, int, size_t); 157 int memcmp(const void *, const void *, size_t); 158 u_long random(void); 159 void srandom(u_long); 160 int scanc(u_int, const u_char *, const u_char *, int); 161 int skpc(int, size_t, u_char *); 162 size_t strlen(const char *); 163 char *strncpy(char *, const char *, size_t); 164 size_t strlcpy(char *, const char *, size_t); 165 size_t strlcat(char *, const char *, size_t); 166 int strcmp(const char *, const char *); 167 int strncmp(const char *, const char *, size_t); 168 int strncasecmp(const char *, const char *, size_t); 169 int getsn(char *, int); 170 171 extern u_int8_t const __bcd2bin[], __bin2bcd[]; 172 #define bcd2bin(b) (__bcd2bin[(b)&0xff]) 173 #define bin2bcd(b) (__bin2bcd[(b)&0xff]) 174 175 #endif /* __LIBKERN_H__ */ 176