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
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
/*
* FTGL - OpenGL font library
*
* Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef __FTVector__
#define __FTVector__
#include "FTGL/ftgl.h"
/**
* Provides a non-STL alternative to the STL vector
*/
template <typename FT_VECTOR_ITEM_TYPE>
class FTVector
{
public:
typedef FT_VECTOR_ITEM_TYPE value_type;
typedef value_type& reference;
typedef const value_type& const_reference;
typedef value_type* iterator;
typedef const value_type* const_iterator;
typedef size_t size_type;
FTVector()
{
Capacity = Size = 0;
Items = 0;
}
virtual ~FTVector()
{
clear();
}
FTVector& operator =(const FTVector& v)
{
reserve(v.capacity());
iterator ptr = begin();
const_iterator vbegin = v.begin();
const_iterator vend = v.end();
while(vbegin != vend)
{
*ptr++ = *vbegin++;
}
Size = v.size();
return *this;
}
size_type size() const
{
return Size;
}
size_type capacity() const
{
return Capacity;
}
iterator begin()
{
return Items;
}
const_iterator begin() const
{
return Items;
}
iterator end()
{
return begin() + size();
}
const_iterator end() const
{
return begin() + size();
}
bool empty() const
{
return size() == 0;
}
reference operator [](size_type pos)
{
return(*(begin() + pos));
}
const_reference operator [](size_type pos) const
{
return *(begin() + pos);
}
void clear()
{
if(Capacity)
{
delete [] Items;
Capacity = Size = 0;
Items = 0;
}
}
void reserve(size_type n)
{
if(capacity() < n)
{
expand(n);
}
}
void push_back(const value_type& x)
{
if(size() == capacity())
{
expand();
}
(*this)[size()] = x;
++Size;
}
void resize(size_type n, value_type x)
{
if(n == size())
{
return;
}
reserve(n);
iterator ibegin, iend;
if(n >= Size)
{
ibegin = this->end();
iend = this->begin() + n;
}
else
{
ibegin = this->begin() + n;
iend = this->end();
}
while(ibegin != iend)
{
*ibegin++ = x;
}
Size = n;
}
private:
void expand(size_type capacity_hint = 0)
{
size_type new_capacity = (capacity() == 0) ? 256 : capacity() * 2;
if(capacity_hint)
{
while(new_capacity < capacity_hint)
{
new_capacity *= 2;
}
}
value_type *new_items = new value_type[new_capacity];
iterator ibegin = this->begin();
iterator iend = this->end();
value_type *ptr = new_items;
while(ibegin != iend)
{
*ptr++ = *ibegin++;
}
if(Capacity)
{
delete [] Items;
}
Items = new_items;
Capacity = new_capacity;
}
size_type Capacity;
size_type Size;
value_type* Items;
};
#endif // __FTVector__
|
