1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2006 The ScummVM project
*
* 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.
*
* $URL$
* $Id$
*/
#ifndef COMMON_ARRAY_H
#define COMMON_ARRAY_H
#include "common/scummsys.h"
#include <assert.h>
namespace Common {
template <class T>
class Array {
protected:
int _capacity;
int _size;
T *_data;
public:
typedef T *iterator;
typedef const T *const_iterator;
public:
Array<T>() : _capacity(0), _size(0), _data(0) {}
Array<T>(const Array<T>& array) : _capacity(0), _size(0), _data(0) {
_size = array._size;
_capacity = _size + 32;
_data = new T[_capacity];
for (int i = 0; i < _size; i++)
_data[i] = array._data[i];
}
#ifdef __SYMBIAN32__
~Array()
#else
~Array<T>()
#endif
{
if (_data)
delete [] _data;
}
void push_back(const T& element) {
ensureCapacity(_size + 1);
_data[_size++] = element;
}
void push_back(const Array<T>& array) {
ensureCapacity(_size + array._size);
for (int i = 0; i < array._size; i++)
_data[_size++] = array._data[i];
}
void insert_at(int idx, const T& element) {
assert(idx >= 0 && idx <= _size);
ensureCapacity(_size + 1);
// The following loop is not efficient if you can just memcpy things around.
// e.g. if you have a list of ints. But for real objects (String...), memcpy
// usually isn't correct (specifically, for any class which has a non-default
// copy behaviour. E.g. the String class uses a refCounter which has to be
// updated whenever a String is copied.
for (int i = _size; i > idx; i--) {
_data[i] = _data[i-1];
}
_data[idx] = element;
_size++;
}
T remove_at(int idx) {
assert(idx >= 0 && idx < _size);
T tmp = _data[idx];
for (int i = idx; i < _size - 1; i++)
_data[i] = _data[i+1];
_size--;
return tmp;
}
// TODO: insert, remove, ...
T& operator [](int idx) {
assert(idx >= 0 && idx < _size);
return _data[idx];
}
const T& operator [](int idx) const {
assert(idx >= 0 && idx < _size);
return _data[idx];
}
Array<T>& operator =(const Array<T>& array) {
if (_data)
delete [] _data;
_size = array._size;
_capacity = _size + 32;
_data = new T[_capacity];
for (int i = 0; i < _size; i++)
_data[i] = array._data[i];
return *this;
}
uint size() const {
return _size;
}
void clear() {
if (_data) {
delete [] _data;
_data = 0;
}
_size = 0;
_capacity = 0;
}
bool isEmpty() const {
return (_size == 0);
}
iterator begin() {
return _data;
}
iterator end() {
return _data + _size;
}
const_iterator begin() const {
return _data;
}
const_iterator end() const {
return _data + _size;
}
bool contains(const T &key) const {
for (const_iterator i = begin(); i != end(); ++i) {
if (*i == key)
return true;
}
return false;
}
protected:
void ensureCapacity(int new_len) {
if (new_len <= _capacity)
return;
T *old_data = _data;
_capacity = new_len + 32;
_data = new T[_capacity];
if (old_data) {
// Copy old data
for (int i = 0; i < _size; i++)
_data[i] = old_data[i];
delete [] old_data;
}
}
};
} // End of namespace Common
#endif
|
