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
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
// file : xsde/cxx/buffer.ixx
// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
#include <string.h> // memcmp
#ifdef XSDE_CUSTOM_ALLOCATOR
# include <xsde/cxx/allocator.hxx>
#endif
namespace xsde
{
namespace cxx
{
// c-tors & d-tor
//
inline buffer::
~buffer ()
{
if (data_)
#ifndef XSDE_CUSTOM_ALLOCATOR
operator delete (data_);
#else
cxx::free (data_);
#endif
}
inline buffer::
buffer ()
: data_ (0), size_ (0), capacity_ (0)
{
}
#ifndef XSDE_EXCEPTIONS
inline buffer::error buffer::
#else
inline void buffer::
#endif
attach (void* data, size_t size, size_t cap)
{
if (size > cap)
{
#ifdef XSDE_EXCEPTIONS
throw bounds ();
#else
return error_bounds;
#endif
}
if (data_)
#ifndef XSDE_CUSTOM_ALLOCATOR
operator delete (data_);
#else
cxx::free (data_);
#endif
data_ = reinterpret_cast<char*> (data);
size_ = size;
capacity_ = cap;
#ifndef XSDE_EXCEPTIONS
return error_none;
#endif
}
inline void* buffer::
detach ()
{
void* r = data_;
data_ = 0;
size_ = 0;
capacity_ = 0;
return r;
}
inline void buffer::
swap (buffer& other)
{
char* d = data_;
size_t s = size_;
size_t c = capacity_;
data_ = other.data_;
size_ = other.size_;
capacity_ = other.capacity_;
other.data_ = d;
other.size_ = s;
other.capacity_ = c;
}
//
//
inline size_t buffer::
capacity () const
{
return capacity_;
}
#ifdef XSDE_EXCEPTIONS
inline bool buffer::
capacity (size_t cap)
{
return capacity (cap, true);
}
#else
inline buffer::error buffer::
capacity (size_t cap)
{
return capacity (cap, true, 0);
}
inline buffer::error buffer::
capacity (size_t cap, bool& moved)
{
return capacity (cap, true, &moved);
}
#endif
inline size_t buffer::
size () const
{
return size_;
}
#ifdef XSDE_EXCEPTIONS
inline bool buffer::
size (size_t size)
{
bool r = false;
if (size > capacity_)
r = capacity (size);
size_ = size;
return r;
}
#else
inline buffer::error buffer::
size (size_t size)
{
error r = error_none;
if (size > capacity_)
r = capacity (size);
if (r == error_none)
size_ = size;
return r;
}
inline buffer::error buffer::
size (size_t size, bool& moved)
{
error r = error_none;
moved = false;
if (size > capacity_)
r = capacity (size, moved);
if (r == error_none)
size_ = size;
return r;
}
#endif
//
//
inline const char* buffer::
data () const
{
return data_;
}
inline char* buffer::
data ()
{
return data_;
}
inline const char* buffer::
begin () const
{
return data_;
}
inline char* buffer::
begin ()
{
return data_;
}
inline const char* buffer::
end () const
{
return data_ + size_;
}
inline char* buffer::
end ()
{
return data_ + size_;
}
inline bool
operator== (const buffer& x, const buffer& y)
{
return x.size () == y.size () &&
memcmp (x.data (), y.data (), x.size ()) == 0;
}
inline bool
operator!= (const buffer& x, const buffer& y)
{
return !(x == y);
}
//
//
#ifndef XSDE_EXCEPTIONS
inline bool buffer::
_copy (buffer& c) const
{
return c.assign (data_, size_) == error_none;
}
#else
inline void buffer::
_copy (buffer& c) const
{
c.assign (data_, size_);
}
#endif
}
}
|
