/usr/include/io_lib/jenkins_lookup3.h is in libstaden-read-dev 1.14.6-2.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | /* From lookup3.c, by Bob Jenkins, May 2006, Public Domain. */
#ifndef _JENKINS_LOOKUP3_H_
#define _JENKINS_LOOKUP3_H_
#include <inttypes.h> /* defines uint32_t etc */
/*
* HashJenkins3: return 2 32-bit hash values
*
* This is identical to hashlittle(), except it returns two 32-bit hash
* values instead of just one. This is good enough for hash table
* lookup with 2^^64 buckets, or if you want a second hash if you're not
* happy with the first, or if you want a probably-unique 64-bit ID for
* the key. *pc is better mixed than *pb, so use *pc first. If you want
* a 64-bit value do something like "*pc + (((uint64_t)*pb)<<32)".
*/
void HashJenkins3(
const void *key, /* the key to hash */
size_t length, /* length of the key */
uint32_t *pc, /* IN: primary initval, OUT: primary hash */
uint32_t *pb); /* IN: secondary initval, OUT: secondary hash */
#endif
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