File: cdb_hash.cc

package info (click to toggle)
xapian-omega 1.0.7-3%2Blenny2
  • links: PTS
  • area: main
  • in suites: lenny
  • size: 2,424 kB
  • ctags: 744
  • sloc: sh: 9,112; cpp: 7,954; makefile: 245; perl: 119
file content (21 lines) | stat: -rw-r--r-- 508 bytes parent folder | download | duplicates (6) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
/* $Id: cdb_hash.c,v 1.5 2003/11/03 16:42:41 mjt Exp $
 * cdb hashing routine
 *
 * This file is a part of tinycdb package by Michael Tokarev, mjt@corpit.ru.
 * Public domain.
 */

#include <config.h>

#include "cdb.h"

unsigned
cdb_hash(const void *buf, unsigned len)
{
  register const unsigned char *p = (const unsigned char *)buf;
  register const unsigned char *end = p + len;
  register unsigned hash = 5381;	/* start value */
  while (p < end)
    hash = (hash + (hash << 5)) ^ *p++;
  return hash;
}