bsd/libkern/libkern.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   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.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  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.
  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
  60 #include <sys/cdefs.h>
  61 #include <sys/types.h>
  62
  63 /* BCD conversions. */
  64 extern u_char const     bcd2bin_data[];
  65 extern u_char const     bin2bcd_data[];
  66 extern char const       hex2ascii_data[];
  67
  68 #define bcd2bin(bcd)    (bcd2bin_data[bcd])
  69 #define bin2bcd(bin)    (bin2bcd_data[bin])
  70 #define hex2ascii(hex)  (hex2ascii_data[hex])
  71
  72
  73 __BEGIN_DECLS
  74 static inline int
  75 imax(int a, int b)
  76 {
  77         return (a > b ? a : b);
  78 }
  79 static inline int
  80 imin(int a, int b)
  81 {
  82         return (a < b ? a : b);
  83 }
  84 static inline long
  85 lmax(long a, long b)
  86 {
  87         return (a > b ? a : b);
  88 }
  89 static inline long
  90 lmin(long a, long b)
  91 {
  92         return (a < b ? a : b);
  93 }
  94 static inline u_int
  95 max(u_int a, u_int b)
  96 {
  97         return (a > b ? a : b);
  98 }
  99 static inline u_int
 100 min(u_int a, u_int b)
 101 {
 102         return (a < b ? a : b);
 103 }
 104 static inline u_long
 105 ulmax(u_long a, u_long b)
 106 {
 107         return (a > b ? a : b);
 108 }
 109 static inline u_long
 110 ulmin(u_long a, u_long b)
 111 {
 112         return (a < b ? a : b);
 113 }
 114
 115 /* Prototypes for non-quad routines. */
 116 int      bcmp __P((const void *, const void *, size_t));
 117 int      ffs __P((int));
 118 int      locc __P((int, char *, u_int));
 119 u_long   random __P((void));
 120 char    *rindex __P((const char *, int));
 121 int      scanc __P((u_int, u_char *, u_char *, int));
 122 int      skpc __P((int, int, char *));
 123 char    *strcat __P((char *, const char *));
 124 char    *strcpy __P((char *, const char *));
 125 size_t   strlen __P((const char *));
 126 char    *strncpy __P((char *, const char *, size_t));
 127 long    strtol __P((const char*, char **, int));
 128 __END_DECLS
 129
 130 #endif /* _LIBKERN_LIBKERN_H_ */