1 /* $NetBSD: libkern.h,v 1.40 2002/05/28 10:09:24 itojun 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 LIBKERN_INLINE int isspace __P((int)) __attribute__((__unused__)); 59 LIBKERN_INLINE int isascii __P((int)) __attribute__((__unused__)); 60 LIBKERN_INLINE int isupper __P((int)) __attribute__((__unused__)); 61 LIBKERN_INLINE int islower __P((int)) __attribute__((__unused__)); 62 LIBKERN_INLINE int isalpha __P((int)) __attribute__((__unused__)); 63 LIBKERN_INLINE int isdigit __P((int)) __attribute__((__unused__)); 64 LIBKERN_INLINE int isxdigit __P((int)) __attribute__((__unused__)); 65 LIBKERN_INLINE int toupper __P((int)) __attribute__((__unused__)); 66 LIBKERN_INLINE int tolower __P((int)) __attribute__((__unused__)); 67 68 #ifdef LIBKERN_BODY 69 LIBKERN_INLINE int 70 imax(a, b) 71 int a, b; 72 { 73 return (a > b ? a : b); 74 } 75 LIBKERN_INLINE int 76 imin(a, b) 77 int a, b; 78 { 79 return (a < b ? a : b); 80 } 81 LIBKERN_INLINE long 82 lmax(a, b) 83 long a, b; 84 { 85 return (a > b ? a : b); 86 } 87 LIBKERN_INLINE long 88 lmin(a, b) 89 long a, b; 90 { 91 return (a < b ? a : b); 92 } 93 LIBKERN_INLINE u_int 94 max(a, b) 95 u_int a, b; 96 { 97 return (a > b ? a : b); 98 } 99 LIBKERN_INLINE u_int 100 min(a, b) 101 u_int a, b; 102 { 103 return (a < b ? a : b); 104 } 105 LIBKERN_INLINE u_long 106 ulmax(a, b) 107 u_long a, b; 108 { 109 return (a > b ? a : b); 110 } 111 LIBKERN_INLINE u_long 112 ulmin(a, b) 113 u_long a, b; 114 { 115 return (a < b ? a : b); 116 } 117 118 LIBKERN_INLINE int 119 abs(j) 120 int j; 121 { 122 return(j < 0 ? -j : j); 123 } 124 125 LIBKERN_INLINE int 126 isspace(ch) 127 int ch; 128 { 129 130 return (ch == ' ' || (ch >= '\t' && ch <= '\r')); 131 } 132 133 LIBKERN_INLINE int 134 isascii(ch) 135 int ch; 136 { 137 138 return ((ch & ~0x7f) == 0); 139 } 140 141 LIBKERN_INLINE int 142 isupper(ch) 143 int ch; 144 { 145 146 return (ch >= 'A' && ch <= 'Z'); 147 } 148 149 LIBKERN_INLINE int 150 islower(ch) 151 int ch; 152 { 153 154 return (ch >= 'a' && ch <= 'z'); 155 } 156 157 LIBKERN_INLINE int 158 isalpha(ch) 159 int ch; 160 { 161 162 return (isupper(ch) || islower(ch)); 163 } 164 165 LIBKERN_INLINE int 166 isdigit(ch) 167 int ch; 168 { 169 170 return (ch >= '0' && ch <= '9'); 171 } 172 173 LIBKERN_INLINE int 174 isxdigit(ch) 175 int ch; 176 { 177 178 return (isdigit(ch) || 179 (ch >= 'A' && ch <= 'F') || 180 (ch >= 'a' && ch <= 'f')); 181 } 182 183 LIBKERN_INLINE int 184 toupper(ch) 185 int ch; 186 { 187 188 if (islower(ch)) 189 return (ch - 0x20); 190 return (ch); 191 } 192 193 LIBKERN_INLINE int 194 tolower(ch) 195 int ch; 196 { 197 198 if (isupper(ch)) 199 return (ch + 0x20); 200 return (ch); 201 } 202 #endif 203 204 #ifdef NDEBUG /* tradition! */ 205 #define assert(e) ((void)0) 206 #else 207 #ifdef __STDC__ 208 #define assert(e) (__predict_true((e)) ? (void)0 : \ 209 __assert("", __FILE__, __LINE__, #e)) 210 #else 211 #define assert(e) (__predict_true((e)) ? (void)0 : \ 212 __assert("", __FILE__, __LINE__, "e")) 213 #endif 214 #endif 215 216 #ifndef DIAGNOSTIC 217 #ifdef lint 218 #define KASSERT(e) /* NOTHING */ 219 #else /* !lint */ 220 #define KASSERT(e) ((void)0) 221 #endif /* !lint */ 222 #else 223 #ifdef __STDC__ 224 #define KASSERT(e) (__predict_true((e)) ? (void)0 : \ 225 __assert("diagnostic ", __FILE__, __LINE__, #e)) 226 #else 227 #define KASSERT(e) (__predict_true((e)) ? (void)0 : \ 228 __assert("diagnostic ", __FILE__, __LINE__, "e")) 229 #endif 230 #endif 231 232 #ifndef DEBUG 233 #ifdef lint 234 #define KDASSERT(e) /* NOTHING */ 235 #else /* lint */ 236 #define KDASSERT(e) ((void)0) 237 #endif /* lint */ 238 #else 239 #ifdef __STDC__ 240 #define KDASSERT(e) (__predict_true((e)) ? (void)0 : \ 241 __assert("debugging ", __FILE__, __LINE__, #e)) 242 #else 243 #define KDASSERT(e) (__predict_true((e)) ? (void)0 : \ 244 __assert("debugging ", __FILE__, __LINE__, "e")) 245 #endif 246 #endif 247 248 #ifndef offsetof 249 #define offsetof(type, member) ((size_t)(&((type *)0)->member)) 250 #endif 251 252 /* Prototypes for non-quad routines. */ 253 /* XXX notyet #ifdef _STANDALONE */ 254 int bcmp __P((const void *, const void *, size_t)); 255 void bzero __P((void *, size_t)); 256 /* #endif */ 257 258 /* Prototypes for which GCC built-ins exist. */ 259 void *memcpy __P((void *, const void *, size_t)); 260 int memcmp __P((const void *, const void *, size_t)); 261 void *memset __P((void *, int, size_t)); 262 #if __GNUC_PREREQ__(2, 95) 263 #define memcpy(d, s, l) __builtin_memcpy(d, s, l) 264 #define memcmp(a, b, l) __builtin_memcmp(a, b, l) 265 #define memset(d, v, l) __builtin_memset(d, v, l) 266 #endif 267 268 char *strcpy __P((char *, const char *)); 269 int strcmp __P((const char *, const char *)); 270 size_t strlen __P((const char *)); 271 #if __GNUC_PREREQ__(2, 95) 272 #define strcpy(d, s) __builtin_strcpy(d, s) 273 #define strcmp(a, b) __builtin_strcmp(a, b) 274 #define strlen(a) __builtin_strlen(a) 275 #endif 276 277 /* Functions for which we always use built-ins. */ 278 #ifdef __GNUC__ 279 #define alloca(s) __builtin_alloca(s) 280 #endif 281 282 /* These exist in GCC 3.x, but we don't bother. */ 283 char *strcat __P((char *, const char *)); 284 char *strncpy __P((char *, const char *, size_t)); 285 int strncmp __P((const char *, const char *, size_t)); 286 char *strchr __P((const char *, int)); 287 char *strrchr __P((const char *, int)); 288 289 /* This exists in GCC 3.x, but we don't bother (yet). */ 290 int ffs __P((int)); 291 292 void __assert __P((const char *, const char *, int, const char *)) 293 __attribute__((__noreturn__)); 294 u_int32_t 295 inet_addr __P((const char *)); 296 char *intoa __P((u_int32_t)); 297 #define inet_ntoa(a) intoa((a).s_addr) 298 void *memchr __P((const void *, int, size_t)); 299 void *memmove __P((void *, const void *, size_t)); 300 int pmatch __P((const char *, const char *, const char **)); 301 u_int32_t arc4random __P((void)); 302 u_long random __P((void)); 303 int scanc __P((u_int, const u_char *, const u_char *, int)); 304 int skpc __P((int, size_t, u_char *)); 305 int strcasecmp __P((const char *, const char *)); 306 int strncasecmp __P((const char *, const char *, size_t)); 307 u_long strtoul __P((const char *, char **, int)); 308 #endif /* !_LIB_LIBKERN_LIBKERN_H_ */ 309