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
|
/*
* File: fixvec.h
* Summary: Fixed size vector class that asserts if you do something bad.
* Written by: Jesse Jones
*
* Modified for Crawl Reference by $Author$ on $Date$
*/
#ifndef FIXVEC_H
#define FIXVEC_H
#if _MSC_VER
// Benign: FixedVector has an array in member init list
# pragma warning(disable : 4351)
#endif
#include <cstdarg>
#include <cstring>
#include "debug.h"
// ==========================================================================
// class FixedVector
// ==========================================================================
template <class TYPE, int SIZE> class FixedVector
{
//-----------------------------------
// Types
//
public:
typedef TYPE value_type;
typedef TYPE& reference;
typedef const TYPE& const_reference;
typedef TYPE* pointer;
typedef const TYPE* const_pointer;
typedef unsigned long size_type;
typedef long difference_type;
typedef TYPE* iterator;
typedef const TYPE* const_iterator;
//-----------------------------------
// Initialization/Destruction
//
public:
~FixedVector() {}
FixedVector() {}
FixedVector(TYPE def) : mData()
{
init(def);
}
FixedVector(TYPE value0, TYPE value1, ...);
// Allows for something resembling C array initialization, eg
// instead of "int a[3] = {0, 1, 2}" you'd use "FixedVector<int, 3>
// a(0, 1, 2)". Note that there must be SIZE arguments.
//-----------------------------------
// API
//
public:
// ----- Size -----
bool empty() const { return SIZE == 0; }
size_t size() const { return SIZE; }
// ----- Access -----
TYPE& operator[](unsigned long index) {
ASSERT(index < SIZE);
return mData[index];
}
const TYPE& operator[](unsigned long index) const {
ASSERT(index < SIZE);
return mData[index];
}
const TYPE* buffer() const { return mData; }
TYPE* buffer() { return mData; }
// ----- Iterating -----
iterator begin() { return mData; }
const_iterator begin() const { return mData; }
iterator end() { return this->begin() + this->size(); }
const_iterator end() const { return this->begin() + this->size(); }
void init(const TYPE& def);
//-----------------------------------
// Member Data
//
protected:
TYPE mData[SIZE];
};
// ==========================================================================
// Outlined Methods
// ==========================================================================
template <class TYPE, int SIZE>
FixedVector<TYPE, SIZE>::FixedVector(TYPE value0, TYPE value1, ...)
{
mData[0] = value0;
mData[1] = value1;
va_list ap;
va_start(ap, value1); // second argument is last fixed parameter
for (int index = 2; index < SIZE; index++)
{
TYPE value = va_arg(ap, TYPE);
mData[index] = value;
}
va_end(ap);
}
template <class TYPE, int SIZE>
void FixedVector<TYPE, SIZE>::init(const TYPE& def)
{
for (int i = 0; i < SIZE; ++i)
mData[i] = def;
}
#endif // FIXVEC_H
|