mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-11 11:45:21 +00:00
44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
/* ScummVM - Graphic Adventure Engine
|
|
*
|
|
* ScummVM is the legal property of its developers, whose names
|
|
* are too numerous to list here. Please refer to the COPYRIGHT
|
|
* file distributed with this source distribution.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
*/
|
|
|
|
#ifndef COMMON_HASH_PTR_H
|
|
#define COMMON_HASH_PTR_H
|
|
|
|
#include "common/func.h"
|
|
|
|
namespace Common {
|
|
|
|
/**
|
|
* Partial specialization of the Hash functor to be able to use pointers as HashMap keys
|
|
*/
|
|
template<typename T>
|
|
struct Hash<T *> {
|
|
uint operator()(T * const &v) const {
|
|
uint x = static_cast<uint>(reinterpret_cast<uintptr>(v));
|
|
return x + (x >> 3);
|
|
}
|
|
};
|
|
|
|
} // End of namespace Common
|
|
|
|
#endif
|