COMMS
Template library intended to help with implementation of communication protocols.
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bits_access.h
1//
2// Copyright 2016 - 2024 (C). Alex Robenko. All rights reserved.
3//
4// This Source Code Form is subject to the terms of the Mozilla Public
5// License, v. 2.0. If a copy of the MPL was not distributed with this
6// file, You can obtain one at http://mozilla.org/MPL/2.0/.
7
8
9#pragma once
10
11#include <tuple>
12#include <type_traits>
13
14#include "macro_common.h"
15#include "gen_enum.h"
16#include "base_detection.h"
17
18#ifdef COMMS_MUST_DEFINE_BASE
19#define COMMS_AS_BITMASK_FUNC Base& asBitmask()
20#define COMMS_AS_BITMASK_CONST_FUNC const Base& asBitmask() const
21#else // #ifdef COMMS_MUST_DEFINE_BASE
22#define COMMS_AS_BITMASK_FUNC FUNC_AUTO_REF_RETURN(asBitmask, decltype(comms::field::toFieldBase(*this)))
23#define COMMS_AS_BITMASK_CONST_FUNC FUNC_AUTO_REF_RETURN_CONST(asBitmask, decltype(comms::field::toFieldBase(*this)))
24#endif // #ifdef COMMS_MUST_DEFINE_BASE
25
26#define COMMS_BIT_ACC_FUNC(f_, n_) \
27 bool COMMS_CONCATENATE(getBitValue_, n_)() const {\
28 return f_.getBitValue(COMMS_CONCATENATE(BitIdx_, n_)); \
29 } \
30 void COMMS_CONCATENATE(setBitValue_, n_)(bool val) {\
31 f_.setBitValue(COMMS_CONCATENATE(BitIdx_, n_), val); \
32 }
33
34#define COMMS_BIT_ACC_FUNC_1(f_, n_) COMMS_BIT_ACC_FUNC(f_, n_)
35#define COMMS_BIT_ACC_FUNC_2(f_, n_, ...) \
36 COMMS_BIT_ACC_FUNC(f_, n_) \
37 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_1(f_, __VA_ARGS__))
38#define COMMS_BIT_ACC_FUNC_3(f_, n_, ...) \
39 COMMS_BIT_ACC_FUNC(f_, n_) \
40 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_2(f_, __VA_ARGS__))
41#define COMMS_BIT_ACC_FUNC_4(f_, n_, ...) \
42 COMMS_BIT_ACC_FUNC(f_, n_) \
43 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_3(f_, __VA_ARGS__))
44#define COMMS_BIT_ACC_FUNC_5(f_, n_, ...) \
45 COMMS_BIT_ACC_FUNC(f_, n_) \
46 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_4(f_, __VA_ARGS__))
47#define COMMS_BIT_ACC_FUNC_6(f_, n_, ...) \
48 COMMS_BIT_ACC_FUNC(f_, n_) \
49 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_5(f_, __VA_ARGS__))
50#define COMMS_BIT_ACC_FUNC_7(f_, n_, ...) \
51 COMMS_BIT_ACC_FUNC(f_, n_) \
52 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_6(f_, __VA_ARGS__))
53#define COMMS_BIT_ACC_FUNC_8(f_, n_, ...) \
54 COMMS_BIT_ACC_FUNC(f_, n_) \
55 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_7(f_, __VA_ARGS__))
56#define COMMS_BIT_ACC_FUNC_9(f_, n_, ...) \
57 COMMS_BIT_ACC_FUNC(f_, n_) \
58 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_8(f_, __VA_ARGS__))
59#define COMMS_BIT_ACC_FUNC_10(f_, n_, ...) \
60 COMMS_BIT_ACC_FUNC(f_, n_) \
61 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_9(f_, __VA_ARGS__))
62#define COMMS_BIT_ACC_FUNC_11(f_, n_, ...) \
63 COMMS_BIT_ACC_FUNC(f_, n_) \
64 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_10(f_, __VA_ARGS__))
65#define COMMS_BIT_ACC_FUNC_12(f_, n_, ...) \
66 COMMS_BIT_ACC_FUNC(f_, n_) \
67 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_11(f_, __VA_ARGS__))
68#define COMMS_BIT_ACC_FUNC_13(f_, n_, ...) \
69 COMMS_BIT_ACC_FUNC(f_, n_) \
70 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_12(f_, __VA_ARGS__))
71#define COMMS_BIT_ACC_FUNC_14(f_, n_, ...) \
72 COMMS_BIT_ACC_FUNC(f_, n_) \
73 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_13(f_, __VA_ARGS__))
74#define COMMS_BIT_ACC_FUNC_15(f_, n_, ...) \
75 COMMS_BIT_ACC_FUNC(f_, n_) \
76 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_14(f_, __VA_ARGS__))
77#define COMMS_BIT_ACC_FUNC_16(f_, n_, ...) \
78 COMMS_BIT_ACC_FUNC(f_, n_) \
79 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_15(f_, __VA_ARGS__))
80#define COMMS_BIT_ACC_FUNC_17(f_, n_, ...) \
81 COMMS_BIT_ACC_FUNC(f_, n_) \
82 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_16(f_, __VA_ARGS__))
83#define COMMS_BIT_ACC_FUNC_18(f_, n_, ...) \
84 COMMS_BIT_ACC_FUNC(f_, n_) \
85 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_17(f_, __VA_ARGS__))
86#define COMMS_BIT_ACC_FUNC_19(f_, n_, ...) \
87 COMMS_BIT_ACC_FUNC(f_, n_) \
88 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_18(f_, __VA_ARGS__))
89#define COMMS_BIT_ACC_FUNC_20(f_, n_, ...) \
90 COMMS_BIT_ACC_FUNC(f_, n_) \
91 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_19(f_, __VA_ARGS__))
92#define COMMS_BIT_ACC_FUNC_21(f_, n_, ...) \
93 COMMS_BIT_ACC_FUNC(f_, n_) \
94 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_20(f_, __VA_ARGS__))
95#define COMMS_BIT_ACC_FUNC_22(f_, n_, ...) \
96 COMMS_BIT_ACC_FUNC(f_, n_) \
97 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_21(f_, __VA_ARGS__))
98#define COMMS_BIT_ACC_FUNC_23(f_, n_, ...) \
99 COMMS_BIT_ACC_FUNC(f_, n_) \
100 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_22(f_, __VA_ARGS__))
101#define COMMS_BIT_ACC_FUNC_24(f_, n_, ...) \
102 COMMS_BIT_ACC_FUNC(f_, n_) \
103 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_23(f_, __VA_ARGS__))
104#define COMMS_BIT_ACC_FUNC_25(f_, n_, ...) \
105 COMMS_BIT_ACC_FUNC(f_, n_) \
106 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_24(f_, __VA_ARGS__))
107#define COMMS_BIT_ACC_FUNC_26(f_, n_, ...) \
108 COMMS_BIT_ACC_FUNC(f_, n_) \
109 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_25(f_, __VA_ARGS__))
110#define COMMS_BIT_ACC_FUNC_27(f_, n_, ...) \
111 COMMS_BIT_ACC_FUNC(f_, n_) \
112 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_26(f_, __VA_ARGS__))
113#define COMMS_BIT_ACC_FUNC_28(f_, n_, ...) \
114 COMMS_BIT_ACC_FUNC(f_, n_) \
115 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_27(f_, __VA_ARGS__))
116#define COMMS_BIT_ACC_FUNC_29(f_, n_, ...) \
117 COMMS_BIT_ACC_FUNC(f_, n_) \
118 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_28(f_, __VA_ARGS__))
119#define COMMS_BIT_ACC_FUNC_30(f_, n_, ...) \
120 COMMS_BIT_ACC_FUNC(f_, n_) \
121 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_29(f_, __VA_ARGS__))
122#define COMMS_BIT_ACC_FUNC_31(f_, n_, ...) \
123 COMMS_BIT_ACC_FUNC(f_, n_) \
124 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_30(f_, __VA_ARGS__))
125#define COMMS_BIT_ACC_FUNC_32(f_, n_, ...) \
126 COMMS_BIT_ACC_FUNC(f_, n_) \
127 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_31(f_, __VA_ARGS__))
128#define COMMS_BIT_ACC_FUNC_33(f_, n_, ...) \
129 COMMS_BIT_ACC_FUNC(f_, n_) \
130 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_32(f_, __VA_ARGS__))
131#define COMMS_BIT_ACC_FUNC_34(f_, n_, ...) \
132 COMMS_BIT_ACC_FUNC(f_, n_) \
133 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_33(f_, __VA_ARGS__))
134#define COMMS_BIT_ACC_FUNC_35(f_, n_, ...) \
135 COMMS_BIT_ACC_FUNC(f_, n_) \
136 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_34(f_, __VA_ARGS__))
137#define COMMS_BIT_ACC_FUNC_36(f_, n_, ...) \
138 COMMS_BIT_ACC_FUNC(f_, n_) \
139 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_35(f_, __VA_ARGS__))
140#define COMMS_BIT_ACC_FUNC_37(f_, n_, ...) \
141 COMMS_BIT_ACC_FUNC(f_, n_) \
142 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_36(f_, __VA_ARGS__))
143#define COMMS_BIT_ACC_FUNC_38(f_, n_, ...) \
144 COMMS_BIT_ACC_FUNC(f_, n_) \
145 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_37(f_, __VA_ARGS__))
146#define COMMS_BIT_ACC_FUNC_39(f_, n_, ...) \
147 COMMS_BIT_ACC_FUNC(f_, n_) \
148 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_38(f_, __VA_ARGS__))
149#define COMMS_BIT_ACC_FUNC_40(f_, n_, ...) \
150 COMMS_BIT_ACC_FUNC(f_, n_) \
151 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_39(f_, __VA_ARGS__))
152#define COMMS_BIT_ACC_FUNC_41(f_, n_, ...) \
153 COMMS_BIT_ACC_FUNC(f_, n_) \
154 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_40(f_, __VA_ARGS__))
155#define COMMS_BIT_ACC_FUNC_42(f_, n_, ...) \
156 COMMS_BIT_ACC_FUNC(f_, n_) \
157 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_41(f_, __VA_ARGS__))
158#define COMMS_BIT_ACC_FUNC_43(f_, n_, ...) \
159 COMMS_BIT_ACC_FUNC(f_, n_) \
160 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_42(f_, __VA_ARGS__))
161#define COMMS_BIT_ACC_FUNC_44(f_, n_, ...) \
162 COMMS_BIT_ACC_FUNC(f_, n_) \
163 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_43(f_, __VA_ARGS__))
164#define COMMS_BIT_ACC_FUNC_45(f_, n_, ...) \
165 COMMS_BIT_ACC_FUNC(f_, n_) \
166 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_44(f_, __VA_ARGS__))
167#define COMMS_BIT_ACC_FUNC_46(f_, n_, ...) \
168 COMMS_BIT_ACC_FUNC(f_, n_) \
169 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_45(f_, __VA_ARGS__))
170#define COMMS_BIT_ACC_FUNC_47(f_, n_, ...) \
171 COMMS_BIT_ACC_FUNC(f_, n_) \
172 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_46(f_, __VA_ARGS__))
173#define COMMS_BIT_ACC_FUNC_48(f_, n_, ...) \
174 COMMS_BIT_ACC_FUNC(f_, n_) \
175 COMMS_EXPAND(COMMS_BIT_ACC_FUNC_47(f_, __VA_ARGS__))
176
177#define COMMS_CHOOSE_BIT_ACC_FUNC_(N, f_, ...) COMMS_EXPAND(COMMS_BIT_ACC_FUNC_ ## N(f_, __VA_ARGS__))
178#define COMMS_CHOOSE_BIT_ACC_FUNC(N, f_, ...) COMMS_EXPAND(COMMS_CHOOSE_BIT_ACC_FUNC_(N, f_, __VA_ARGS__))
179#define COMMS_DO_BIT_ACC_FUNC(f_, ...) \
180 COMMS_EXPAND(COMMS_CHOOSE_BIT_ACC_FUNC(COMMS_NUM_ARGS(__VA_ARGS__), f_, __VA_ARGS__))
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