1 #ifndef GIM_BITSET_H_INCLUDED
2 #define GIM_BITSET_H_INCLUDED
4 \author Francisco Leon Najera
7 -----------------------------------------------------------------------------
8 This source file is part of GIMPACT Library.
10 For the latest info, see http://gimpact.sourceforge.net/
12 Copyright (c) 2006 Francisco Leon Najera. C.C. 80087371.
13 email: projectileman@yahoo.com
15 This library is free software; you can redistribute it and/or
16 modify it under the terms of EITHER:
17 (1) The GNU Lesser General Public License as published by the Free
18 Software Foundation; either version 2.1 of the License, or (at
19 your option) any later version. The text of the GNU Lesser
20 General Public License is included with this library in the
21 file GIMPACT-LICENSE-LGPL.TXT.
22 (2) The BSD-style license that is included with this library in
23 the file GIMPACT-LICENSE-BSD.TXT.
24 (3) The zlib/libpng license that is included with this library in
25 the file GIMPACT-LICENSE-ZLIB.TXT.
27 This library is distributed in the hope that it will be useful,
28 but WITHOUT ANY WARRANTY; without even the implied warranty of
29 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files
30 GIMPACT-LICENSE-LGPL.TXT, GIMPACT-LICENSE-ZLIB.TXT and GIMPACT-LICENSE-BSD.TXT for more details.
32 -----------------------------------------------------------------------------
35 #include "gim_array.h"
38 #define GUINT_BIT_COUNT 32
39 #define GUINT_EXPONENT 5
44 gim_array<GUINT> m_container;
51 gim_bitset(GUINT bits_count)
60 inline bool resize(GUINT newsize)
62 GUINT oldsize = m_container.size();
63 m_container.resize(newsize/GUINT_BIT_COUNT + 1,false);
64 while(oldsize<m_container.size())
66 m_container[oldsize] = 0;
73 return m_container.size()*GUINT_BIT_COUNT;
78 for(GUINT i = 0;i<m_container.size();++i)
80 m_container[i] = 0xffffffff;
84 inline void clear_all()
86 for(GUINT i = 0;i<m_container.size();++i)
92 inline void set(GUINT bit_index)
98 m_container[bit_index >> GUINT_EXPONENT] |= (1 << (bit_index & (GUINT_BIT_COUNT-1)));
102 inline char get(GUINT bit_index)
104 if(bit_index>=size())
108 char value = m_container[bit_index >> GUINT_EXPONENT] &
109 (1 << (bit_index & (GUINT_BIT_COUNT-1)));
113 inline void clear(GUINT bit_index)
115 m_container[bit_index >> GUINT_EXPONENT] &= ~(1 << (bit_index & (GUINT_BIT_COUNT-1)));
123 #endif // GIM_CONTAINERS_H_INCLUDED