43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
|
/**
|
||
|
|
* PANDA 3D SOFTWARE
|
||
|
|
* Copyright (c) Carnegie Mellon University. All rights reserved.
|
||
|
|
*
|
||
|
|
* All use of this software is subject to the terms of the revised BSD
|
||
|
|
* license. You should have received a copy of this license along
|
||
|
|
* with this source code in a file named "LICENSE."
|
||
|
|
*
|
||
|
|
* @file hashGeneratorBase.h
|
||
|
|
* @author drose
|
||
|
|
* @date 2001-05-14
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef HASHGENERATORBASE_H
|
||
|
|
#define HASHGENERATORBASE_H
|
||
|
|
|
||
|
|
#include "pandabase.h"
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This is the base class for a number of classes that generate arbitrary hash
|
||
|
|
* numbers for complex objects, based fundamentally on a sequence of integers.
|
||
|
|
*
|
||
|
|
* There are no virtual functions here, for performance reasons; it is
|
||
|
|
* generally desirable to generate hash numbers as quickly as possible. The
|
||
|
|
* derived classes must redefine all the basic functionality.
|
||
|
|
*
|
||
|
|
* Thus, a compile-time decision must be made for the kind of HashGenerator
|
||
|
|
* that is appropriate for a particular class.
|
||
|
|
*/
|
||
|
|
class EXPCL_PANDA_EXPRESS HashGeneratorBase {
|
||
|
|
public:
|
||
|
|
INLINE HashGeneratorBase();
|
||
|
|
|
||
|
|
INLINE size_t get_hash() const;
|
||
|
|
|
||
|
|
protected:
|
||
|
|
size_t _hash;
|
||
|
|
};
|
||
|
|
|
||
|
|
#include "hashGeneratorBase.I"
|
||
|
|
|
||
|
|
#endif
|