MongoDB  2.7.0
mongoutils Namespace Reference

Copyright (C) 2012 10gen Inc. More...


int checksum (const char *x, int size)
 this is a silly temporary implementation
unsigned hashPointer (void *v)
unsigned hash (unsigned u)

Detailed Description

Copyright (C) 2012 10gen Inc.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License, version 3, as published by the Free Software Foundation.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License along with this program. If not, see

As a special exception, the copyright holders give permission to link the code of portions of this program with the OpenSSL library under certain conditions as described in each individual source file and distribute linked combinations including the program with the OpenSSL library. You must comply with the GNU Affero General Public License in all respects for all of the code used other than as permitted herein. If you modify file(s) with this exception, you may extend this exception to your version of the file(s), but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version. If you delete this exception statement from all source files in the program, then also delete it in the license file.

Function Documentation

unsigned mongoutils::hashPointer ( void *  v)
hash of a pointer to an unsigned. so you get a 32 bit hash out, regardless of whether pointers are 32 or 64 bit on the particular platform.

is there a faster way to impl this that hashes just as well?