|
1 /* |
|
2 * Copyright (c) 2002-2004 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: ?Description |
|
15 * |
|
16 */ |
|
17 |
|
18 |
|
19 // ----------------------------------------------------------------------------- |
|
20 // TBitStream:: |
|
21 // |
|
22 // ----------------------------------------------------------------------------- |
|
23 // |
|
24 template<TInt S> |
|
25 void TBitStream<S>::Clear() |
|
26 { |
|
27 iData.SetLength(iData.MaxLength()); |
|
28 iData.FillZ(); |
|
29 } |
|
30 |
|
31 template<TInt S> |
|
32 void TBitStream<S>::SetBit( |
|
33 const TInt aBit) |
|
34 { |
|
35 iData[aBit / 8] |= (1 << (7 - aBit % 8)); |
|
36 } |
|
37 |
|
38 template<TInt S> |
|
39 void TBitStream<S>::ClearBit( |
|
40 const TInt aBit) |
|
41 { |
|
42 iData[aBit / 8] &= ~(1 << (7 - aBit % 8)); |
|
43 } |
|
44 |
|
45 template<TInt S> |
|
46 void TBitStream<S>::SetBitValue( |
|
47 const TInt aBit, |
|
48 const TInt aValue) |
|
49 { |
|
50 if (aValue) |
|
51 { |
|
52 SetBit(aBit); |
|
53 } |
|
54 else |
|
55 { |
|
56 ClearBit(aBit); |
|
57 } |
|
58 } |
|
59 |
|
60 template<TInt S> |
|
61 TInt TBitStream<S>::GetBit( |
|
62 const TInt aBit) const |
|
63 { |
|
64 return (iData[aBit / 8] & (1 << (7 - aBit % 8))) ? 1 : 0; |
|
65 } |
|
66 |
|
67 template<TInt S> |
|
68 void TBitStream<S>::XorBit( |
|
69 const TInt aBit, |
|
70 const TInt aValue) |
|
71 { |
|
72 iData[aBit / 8] ^= (1 << (7 - aBit % 8)); |
|
73 } |
|
74 |
|
75 template<TInt S> |
|
76 TPtrC8 TBitStream<S>::Des() const |
|
77 { |
|
78 return TPtrC8(iData.Ptr(), iData.Length()); |
|
79 } |
|
80 |
|
81 template<TInt S> |
|
82 void TBitStream<S>::Set( |
|
83 const TDesC8& aInput) |
|
84 { |
|
85 TInt i; |
|
86 |
|
87 iData.SetLength(aInput.Length()); |
|
88 for (i = 0; i < S / 8; i++) |
|
89 { |
|
90 iData[i] = aInput[i]; |
|
91 } |
|
92 } |
|
93 |
|
94 template<TInt S> |
|
95 void TBitStream<S>::Copy( |
|
96 TBitStream<S> aBitStream) |
|
97 { |
|
98 iData.Copy(aBitStream.Des()); |
|
99 } |
|
100 |
|
101 template<TInt S> |
|
102 void TBitStream<S>::Xor( |
|
103 TBitStream<S> aBitStream) |
|
104 { |
|
105 TPtrC8 des(aBitStream.Des()); |
|
106 TInt i; |
|
107 |
|
108 for (i = 0; i < S / 8; i++) |
|
109 { |
|
110 iData[i] ^= des[i]; |
|
111 } |
|
112 } |
|
113 |
|
114 template<TInt S> |
|
115 void TBitStream<S>::Or( |
|
116 TBitStream<S> aBitStream) |
|
117 { |
|
118 TPtrC8 des(aBitStream.Des()); |
|
119 TInt i; |
|
120 |
|
121 for (i = 0; i < S / 8; i++) |
|
122 { |
|
123 iData[i] |= des[i]; |
|
124 } |
|
125 } |
|
126 |
|
127 template<TInt S> |
|
128 void TBitStream<S>::And( |
|
129 TBitStream<S> aBitStream) |
|
130 { |
|
131 TPtrC8 des(aBitStream.Des()); |
|
132 TInt i; |
|
133 |
|
134 for (i = 0; i < S / 8; i++) |
|
135 { |
|
136 iData[i] &= des[i]; |
|
137 } |
|
138 } |
|
139 |
|
140 template<TInt S> |
|
141 void TBitStream<S>::Not() |
|
142 { |
|
143 TInt i; |
|
144 |
|
145 for (i = 0; i < S / 8; i++) |
|
146 { |
|
147 iData[i] = ~iData[i]; |
|
148 } |
|
149 } |
|
150 |
|
151 template<TInt S> |
|
152 TInt TBitStream<S>::operator[]( |
|
153 const TInt aBit) const |
|
154 { |
|
155 return GetBit(aBit); |
|
156 } |
|
157 |
|
158 // End of File |