Embedded Template Library 1.0
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crc1.h
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1
2
3/******************************************************************************
4The MIT License(MIT)
5
6Embedded Template Library.
7https://github.com/ETLCPP/etl
8https://www.etlcpp.com
9
10Copyright(c) 2023 John Wellbelove
11
12Permission is hereby granted, free of charge, to any person obtaining a copy
13of this software and associated documentation files(the "Software"), to deal
14in the Software without restriction, including without limitation the rights
15to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
16copies of the Software, and to permit persons to whom the Software is
17furnished to do so, subject to the following conditions :
18
19The above copyright notice and this permission notice shall be included in all
20copies or substantial portions of the Software.
21
22THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
25AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
26LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
27OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
28SOFTWARE.
29******************************************************************************/
30
31#ifndef ETL_CRC1_INCLUDED
32#define ETL_CRC1_INCLUDED
33
34#include "platform.h"
36#include "binary.h"
37
38namespace etl
39{
40 //***************************************************************************
43 //***************************************************************************
45 {
46 typedef uint8_t value_type;
47
48 enum
49 {
50 odd_parity = 1,
51 even_parity = 0
52 };
53
54 //*********************************
55 value_type initial() const
56 {
57 return even_parity;
58 }
59
60 //*********************************
61 uint8_t add(int parity, uint8_t value) const
62 {
63 return parity ^ etl::parity(value);
64 }
65
66 //*********************************
67 uint8_t final(uint8_t parity) const
68 {
69 return parity;
70 }
71 };
72
73 class crc1 : public etl::frame_check_sequence<crc1_policy>
74 {
75 public:
76
77 enum
78 {
79 odd_parity = crc1_policy::odd_parity,
80 even_parity = crc1_policy::even_parity
81 };
82
83 //*************************************************************************
85 //*************************************************************************
87 {
88 this->reset();
89 }
90
91 //*************************************************************************
95 //*************************************************************************
96 template<typename TIterator>
98 {
99 this->reset();
100 this->add(begin, end);
101 }
102 };
103}
104
105#endif
Definition crc1.h:74
crc1(TIterator begin, const TIterator end)
Definition crc1.h:97
crc1()
Default constructor.
Definition crc1.h:86
ETL_CONSTEXPR14 etl::enable_if< etl::is_integral< T >::value &&etl::is_unsigned< T >::value &&(etl::integral_limits< T >::bits==16U), uint_least8_t >::type parity(T value)
Definition binary.h:1026
void reset()
Resets the FCS to the initial state.
Definition frame_check_sequence.h:132
void add(TIterator begin, const TIterator end)
Definition frame_check_sequence.h:143
Definition frame_check_sequence.h:98
bitset_ext
Definition absolute.h:38
ETL_CONSTEXPR TContainer::iterator begin(TContainer &container)
Definition iterator.h:962
ETL_CONSTEXPR TContainer::iterator end(TContainer &container)
Definition iterator.h:992
Definition crc1.h:45
pair holds two objects of arbitrary type
Definition utility.h:164