Bullet Collision Detection & Physics Library
gim_bitset.h
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1#ifndef GIM_BITSET_H_INCLUDED
2#define GIM_BITSET_H_INCLUDED
6/*
7-----------------------------------------------------------------------------
8This source file is part of GIMPACT Library.
9
10For the latest info, see http://gimpact.sourceforge.net/
11
12Copyright (c) 2006 Francisco Leon Najera. C.C. 80087371.
13email: projectileman@yahoo.com
14
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.
26
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.
31
32-----------------------------------------------------------------------------
33*/
34
35#include "gim_array.h"
36
37#define GUINT_BIT_COUNT 32
38#define GUINT_EXPONENT 5
39
41{
42public:
44
46 {
47 }
48
50 {
52 }
53
55 {
56 }
57
58 inline bool resize(GUINT newsize)
59 {
62 while (oldsize < m_container.size())
63 {
65 }
66 return true;
67 }
68
69 inline GUINT size()
70 {
72 }
73
74 inline void set_all()
75 {
76 for (GUINT i = 0; i < m_container.size(); ++i)
77 {
78 m_container[i] = 0xffffffff;
79 }
80 }
81
82 inline void clear_all()
83 {
84 for (GUINT i = 0; i < m_container.size(); ++i)
85 {
86 m_container[i] = 0;
87 }
88 }
89
90 inline void set(GUINT bit_index)
91 {
92 if (bit_index >= size())
93 {
95 }
97 }
98
100 inline char get(GUINT bit_index)
101 {
102 if (bit_index >= size())
103 {
104 return 0;
105 }
106 char value = m_container[bit_index >> GUINT_EXPONENT] &
107 (1 << (bit_index & (GUINT_BIT_COUNT - 1)));
108 return value;
109 }
110
111 inline void clear(GUINT bit_index)
112 {
114 }
115};
116
117#endif // GIM_CONTAINERS_H_INCLUDED
const T & btMax(const T &a, const T &b)
Definition btMinMax.h:27
Very simple array container with fast access and simd memory.
Definition gim_array.h:43
GUINT size() const
Definition gim_array.h:143
void resize(GUINT size, bool call_constructor=true, const T &fillData=T())
Definition gim_array.h:287
bool resize(GUINT newsize)
Definition gim_bitset.h:58
void clear(GUINT bit_index)
Definition gim_bitset.h:111
char get(GUINT bit_index)
Return 0 or 1.
Definition gim_bitset.h:100
void set(GUINT bit_index)
Definition gim_bitset.h:90
void set_all()
Definition gim_bitset.h:74
void clear_all()
Definition gim_bitset.h:82
GUINT size()
Definition gim_bitset.h:69
gim_array< GUINT > m_container
Definition gim_bitset.h:43
gim_bitset(GUINT bits_count)
Definition gim_bitset.h:49
#define GUINT_BIT_COUNT
Definition gim_bitset.h:37
#define GUINT_EXPONENT
Definition gim_bitset.h:38
#define GUINT
Definition gim_math.h:40