Annotation of XNU/bsd/libkern/libkern.h, revision 1.1.1.1

1.1       root        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_ */

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