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
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
|
///\file
/******************************************************************************
The MIT License(MIT)
Embedded Template Library.
https://github.com/ETLCPP/etl
https://www.etlcpp.com
Copyright(c) 2022 John Wellbelove
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 ETL_BYTE_INCLUDED
#define ETL_BYTE_INCLUDED
#include "platform.h"
#include "type_traits.h"
namespace etl
{
#if ETL_USING_CPP11 && !defined(ETL_BYTE_FORCE_CPP03_IMPLEMENTATION)
enum class byte : unsigned char {};
//*************************************************************************
/// To integer.
//*************************************************************************
template <typename TInteger>
constexpr
typename etl::enable_if<etl::is_integral<TInteger>::value, TInteger>::type
to_integer(etl::byte b) ETL_NOEXCEPT
{
return TInteger(b);
}
//*************************************************************************
/// Shift left.
//*************************************************************************
template <typename TInteger>
constexpr
typename etl::enable_if<etl::is_integral<TInteger>::value, etl::byte>::type
operator <<(etl::byte b, TInteger shift) ETL_NOEXCEPT
{
return etl::byte(static_cast<unsigned int>(b) << shift);
}
//*************************************************************************
/// Shift right
//*************************************************************************
template <typename TInteger>
constexpr
typename etl::enable_if<etl::is_integral<TInteger>::value, etl::byte>::type
operator >>(etl::byte b, TInteger shift) ETL_NOEXCEPT
{
return etl::byte(static_cast<unsigned int>(b) >> shift);
}
//*************************************************************************
/// Shift left equals.
//*************************************************************************
template <typename TInteger>
constexpr
typename etl::enable_if<etl::is_integral<TInteger>::value, etl::byte&>::type
operator <<=(etl::byte& b, TInteger shift) ETL_NOEXCEPT
{
return b = b << shift;;
}
//*************************************************************************
/// Shift right equals.
//*************************************************************************
template <typename TInteger>
constexpr
typename etl::enable_if<etl::is_integral<TInteger>::value, etl::byte&>::type
operator >>=(etl::byte& b, TInteger shift) ETL_NOEXCEPT
{
return b = b >> shift;
}
//*************************************************************************
/// Or.
//*************************************************************************
inline constexpr etl::byte operator |(etl::byte lhs, etl::byte rhs) ETL_NOEXCEPT
{
return etl::byte(static_cast<unsigned int>(lhs) | static_cast<unsigned int>(rhs));
}
//*************************************************************************
/// And.
//*************************************************************************
inline constexpr etl::byte operator &(etl::byte lhs, etl::byte rhs) ETL_NOEXCEPT
{
return etl::byte(static_cast<unsigned int>(lhs) & static_cast<unsigned int>(rhs));
}
//*************************************************************************
/// Exclusive Or.
//*************************************************************************
inline constexpr etl::byte operator ^(etl::byte lhs, etl::byte rhs) ETL_NOEXCEPT
{
return etl::byte(static_cast<unsigned int>(lhs) ^ static_cast<unsigned int>(rhs));
}
//*************************************************************************
/// Or equals.
//*************************************************************************
inline ETL_CONSTEXPR14 etl::byte& operator |=(etl::byte& lhs, etl::byte rhs) ETL_NOEXCEPT
{
return lhs = lhs | rhs;
}
//*************************************************************************
/// And equals
//*************************************************************************
inline ETL_CONSTEXPR14 etl::byte& operator &=(etl::byte& lhs, etl::byte rhs) ETL_NOEXCEPT
{
return lhs = lhs & rhs;
}
//*************************************************************************
/// Exclusive or equals.
//*************************************************************************
inline ETL_CONSTEXPR14 etl::byte& operator ^=(etl::byte& lhs, etl::byte rhs) ETL_NOEXCEPT
{
return lhs = lhs ^ rhs;
}
//*************************************************************************
/// Not.
//*************************************************************************
inline constexpr etl::byte operator ~(etl::byte b) ETL_NOEXCEPT
{
return etl::byte(~static_cast<unsigned int>(b));
}
#else
//*************************************************************************
/// The byte class.
//*************************************************************************
class byte
{
public:
// Friend functions
template <typename TInteger>
friend
typename etl::enable_if<etl::is_integral<TInteger>::value, TInteger>::type
to_integer(etl::byte b);
friend bool operator ==(etl::byte lhs, etl::byte rhs);
// Default constructor
byte()
: value(0U)
{
}
// Construct from a value castable to unsigned char
template <typename T>
explicit byte(T v)
: value(static_cast<unsigned char>(v))
{
}
// Cast to a T
template <typename T>
operator T() const
{
return static_cast<T>(value);
}
private:
// The byte value
unsigned char value;
};
//*************************************************************************
/// Equality test
//*************************************************************************
inline bool operator ==(etl::byte lhs, etl::byte rhs)
{
return (lhs.value == rhs.value);
}
//*************************************************************************
/// Inequality test
//*************************************************************************
inline bool operator !=(etl::byte lhs, etl::byte rhs)
{
return !(lhs == rhs);
}
//*************************************************************************
/// To integer.
//*************************************************************************
template <typename TInteger>
typename etl::enable_if<etl::is_integral<TInteger>::value, TInteger>::type
to_integer(etl::byte b)
{
return TInteger(b);
}
//*************************************************************************
/// Shift left.
//*************************************************************************
template <typename TInteger>
typename etl::enable_if<etl::is_integral<TInteger>::value, etl::byte>::type
operator <<(etl::byte b, TInteger shift)
{
return etl::byte(to_integer<unsigned int>(b) << shift);
}
//*************************************************************************
/// Shift right
//*************************************************************************
template <typename TInteger>
typename etl::enable_if<etl::is_integral<TInteger>::value, etl::byte>::type
operator >>(etl::byte b, TInteger shift)
{
return etl::byte(to_integer<unsigned int>(b) >> shift);
}
//*************************************************************************
/// Shift left equals.
//*************************************************************************
template <typename TInteger>
typename etl::enable_if<etl::is_integral<TInteger>::value, etl::byte&>::type
operator <<=(etl::byte& b, TInteger shift)
{
b = b << shift;
return b;
}
//*************************************************************************
/// Shift right equals.
//*************************************************************************
template <typename TInteger>
typename etl::enable_if<etl::is_integral<TInteger>::value, etl::byte&>::type
operator >>=(etl::byte& b, TInteger shift)
{
b = b >> shift;
return b;
}
//*************************************************************************
/// Or.
//*************************************************************************
inline etl::byte operator |(etl::byte lhs, etl::byte rhs)
{
return etl::byte(to_integer<unsigned int>(lhs) | to_integer<unsigned int>(rhs));
}
//*************************************************************************
/// And.
//*************************************************************************
inline etl::byte operator &(etl::byte lhs, etl::byte rhs)
{
return etl::byte(to_integer<unsigned int>(lhs) & to_integer<unsigned int>(rhs));
}
//*************************************************************************
/// Exclusive Or.
//*************************************************************************
inline etl::byte operator ^(etl::byte lhs, etl::byte rhs)
{
return etl::byte(to_integer<unsigned int>(lhs) ^ to_integer<unsigned int>(rhs));
}
//*************************************************************************
/// Or equals.
//*************************************************************************
inline etl::byte& operator |=(etl::byte& lhs, etl::byte rhs)
{
return lhs = lhs | rhs;
}
//*************************************************************************
/// And equals
//*************************************************************************
inline etl::byte& operator &=(etl::byte& lhs, etl::byte rhs)
{
return lhs = lhs & rhs;
}
//*************************************************************************
/// Exclusive or equals.
//*************************************************************************
inline etl::byte& operator ^=(etl::byte& lhs, etl::byte rhs)
{
return lhs = lhs ^ rhs;
}
//*************************************************************************
/// Not.
//*************************************************************************
inline etl::byte operator ~(etl::byte b)
{
return etl::byte(~to_integer<unsigned char>(b));
}
#endif
}
#endif
|
