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Diffstat (limited to 'intern/container/CTR_HashedPtr.h')
-rw-r--r-- | intern/container/CTR_HashedPtr.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/intern/container/CTR_HashedPtr.h b/intern/container/CTR_HashedPtr.h new file mode 100644 index 00000000000..0291535d718 --- /dev/null +++ b/intern/container/CTR_HashedPtr.h @@ -0,0 +1,57 @@ +/* + * $Id$ + * + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * 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. + * + * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV. + * All rights reserved. + * + * The Original Code is: all of this file. + * + * Contributor(s): none yet. + * + * ***** END GPL LICENSE BLOCK ***** + * + */ + +/** \file container/CTR_HashedPtr.h + * \ingroup ctr + */ + +#ifndef CTR_HASHEDPTR_H +#define CTR_HASHEDPTR_H + +#include <stdlib.h> + +inline unsigned int CTR_Hash(void *inDWord) +{ + size_t key = (size_t)inDWord; + return (unsigned int)(key ^ (key>>4)); +} + +class CTR_HashedPtr +{ + void* m_valptr; +public: + CTR_HashedPtr(void* val) : m_valptr(val) {}; + unsigned int hash() const { return CTR_Hash(m_valptr);}; + inline friend bool operator ==(const CTR_HashedPtr & rhs, const CTR_HashedPtr & lhs) { return rhs.m_valptr == lhs.m_valptr;}; + void *getValue() const { return m_valptr; } +}; + +#endif //CTR_HASHEDPTR_H + |