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/* 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
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