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Annotation of 43BSDReno/games/primes/primes.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1989 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * This code is derived from software contributed to Berkeley by
        !             6:  * Landon Curt Noll.
        !             7:  *
        !             8:  * Redistribution and use in source and binary forms are permitted
        !             9:  * provided that: (1) source distributions retain this entire copyright
        !            10:  * notice and comment, and (2) distributions including binaries display
        !            11:  * the following acknowledgement:  ``This product includes software
        !            12:  * developed by the University of California, Berkeley and its contributors''
        !            13:  * in the documentation or other materials provided with the distribution
        !            14:  * and in all advertising materials mentioning features or use of this
        !            15:  * software. Neither the name of the University nor the names of its
        !            16:  * contributors may be used to endorse or promote products derived
        !            17:  * from this software without specific prior written permission.
        !            18:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            19:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            20:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            21:  *
        !            22:  *     @(#)primes.h    5.2 (Berkeley) 6/1/90
        !            23:  */
        !            24: 
        !            25: /*
        !            26:  * primes - generate a table of primes between two values
        !            27:  *
        !            28:  * By: Landon Curt Noll   [email protected],   ...!{sun,tolsoft}!hoptoad!chongo
        !            29:  *
        !            30:  *   chongo <for a good prime call: 391581 * 2^216193 - 1> /\oo/\
        !            31:  */
        !            32: 
        !            33: /* ubig is the type that holds a large unsigned value */
        !            34: typedef unsigned long ubig;           /* must be >=32 bit unsigned value */
        !            35: 
        !            36: /*
        !            37:  * sieve parameters
        !            38:  */
        !            39: #define BIG ((ubig)0xffffffff)        /* highest value we will sieve */
        !            40: #define SEMIBIG ((ubig)0x7fffffff)    /* highest signed value */
        !            41: #define NEG_SEMIBIG ((ubig)0x80000000) /* lowest signed value */
        !            42: #define TABSIZE 256*1024 /* bytes in sieve table (must be > 3*5*7*11) */

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