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2002-12-16 13:33:51 +00:00
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/*
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------------------------------------------------------------------------------
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By Bob Jenkins, September 1996.
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lookupa.h, a hash function for table lookup, same function as lookup.c.
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Use this code in any way you wish. Public Domain. It has no warranty.
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Source is http://burtleburtle.net/bob/c/lookupa.h
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------------------------------------------------------------------------------
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*/
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/* Uncommented by Jens Jakobsen 20020717
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#ifndef STANDARD
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#include "standard.h"
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#endif
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*/
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#ifndef LOOKUPA
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#define LOOKUPA
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2011-11-02 12:06:18 +00:00
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typedef unsigned long int ub4; /* unsigned 4-byte quantities */
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typedef unsigned char ub1;
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2002-12-16 13:33:51 +00:00
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#define CHECKSTATE 8
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#define hashsize(n) ((ub4)1<<(n))
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#define hashmask(n) (hashsize(n)-1)
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2011-11-02 12:06:18 +00:00
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ub4 lookup( /*_ ub1 *k, ub4 length, ub4 level _*/ );
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void checksum( /*_ ub1 *k, ub4 length, ub4 *state _*/ );
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2002-12-16 13:33:51 +00:00
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#endif /* LOOKUPA */
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