1 /* Copyright (c) 2011,2012 Simon Schubert <2@0x2c.org>.
2 * Modifications by Jacob Alexander 2014 <haata@kiibohd.com>
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 #ifndef _MCHCK_CDEFS_H
19 #define _MCHCK_CDEFS_H
21 // ----- Compiler Includes -----
23 #include <sys/param.h>
27 // ----- Defines & Macros -----
30 #define _CONCAT(x,y) _CONCAT1(x,y)
31 #define _CONCAT1(x,y) x ## y
34 typedef __CHAR16_TYPE__ char16_t;
36 #define __packed __attribute__((__packed__))
38 /* From FreeBSD: compile-time asserts */
39 #define CTASSERT(x) _Static_assert(x, _STR(x))
41 #define CTASSERT_SIZE_BYTE(t, s) CTASSERT(sizeof(t) == (s))
42 #define CTASSERT_SIZE_BIT(t, s) CTASSERT(sizeof(t) * 8 == (s))
44 #define UNION_STRUCT_START(size) \
46 _CONCAT(_CONCAT(uint, size), _t) raw; \
48 /* just to swallow the following semicolon */ \
49 struct _CONCAT(_CONCAT(__dummy_, __COUNTER__), _t) {}
51 #define UNION_STRUCT_END \
57 * From <news:dqgm2f$ije$1@sunnews.cern.ch>,
58 * <https://groups.google.com/forum/#!topic/comp.std.c/d-6Mj5Lko_s>
60 #define __PP_NARG(...) \
61 __PP_NARG_(__0, ## __VA_ARGS__, __PP_RSEQ_N())
62 #define __PP_NARG_(...) \
63 __PP_ARG_N(__VA_ARGS__)
65 _1, _2, _3, _4, _5, _6, _7, _8, _9,_10, \
66 _11,_12,_13,_14,_15,_16,_17,_18,_19,_20, \
67 _21,_22,_23,_24,_25,_26,_27,_28,_29,_30, \
68 _31,_32,_33,_34,_35,_36,_37,_38,_39,_40, \
69 _41,_42,_43,_44,_45,_46,_47,_48,_49,_50, \
70 _51,_52,_53,_54,_55,_56,_57,_58,_59,_60, \
72 #define __PP_RSEQ_N() \
74 59,58,57,56,55,54,53,52,51,50, \
75 49,48,47,46,45,44,43,42,41,40, \
76 39,38,37,36,35,34,33,32,31,30, \
77 29,28,27,26,25,24,23,22,21,20, \
78 19,18,17,16,15,14,13,12,11,10, \
82 * From <https://github.com/pfultz2/Cloak/wiki/C-Preprocessor-tricks,-tips,-and-idioms>
84 #define __CAT(a, ...) __PRIMITIVE_CAT(a, __VA_ARGS__)
85 #define __PRIMITIVE_CAT(a, ...) a ## __VA_ARGS__
87 #define __IIF(c) __PRIMITIVE_CAT(__IIF_, c)
88 #define __IIF_0(t, ...) __VA_ARGS__
89 #define __IIF_1(t, ...) t
91 #define __COMPL(b) __PRIMITIVE_CAT(__COMPL_, b)
95 #define __CHECK_N(x, n, ...) n
96 #define __CHECK(...) __CHECK_N(__VA_ARGS__, 0,)
97 #define __PROBE(x) x, 1,
99 #define __NOT(x) __CHECK(__PRIMITIVE_CAT(__NOT_, x))
100 #define __NOT_0 __PROBE(~)
102 #define __BOOL(x) __COMPL(__NOT(x))
103 #define __IF(c) __IIF(__BOOL(c))
106 #define __EXPAND(...) __VA_ARGS__
107 #define __WHEN(c) __IF(c)(__EXPAND, __EAT)
109 #define __HEAD(h, ...) h
110 #define __TAIL(h, ...) __VA_ARGS__
112 #define __EVAL(...) __EVAL1(__EVAL1(__EVAL1(__VA_ARGS__)))
113 #define __EVAL1(...) __EVAL2(__EVAL2(__EVAL2(__VA_ARGS__)))
114 #define __EVAL2(...) __EVAL3(__EVAL3(__EVAL3(__VA_ARGS__)))
115 #define __EVAL3(...) __EVAL4(__EVAL4(__EVAL4(__VA_ARGS__)))
116 #define __EVAL4(...) __EVAL5(__EVAL5(__EVAL5(__VA_ARGS__)))
117 #define __EVAL5(...) __EVAL6(__EVAL6(__EVAL6(__VA_ARGS__)))
118 #define __EVAL6(...) __VA_ARGS__
121 #define __DEFER(id) id __EMPTY()
122 #define __OBSTRUCT(...) __VA_ARGS__ __DEFER(__EMPTY)()
123 #define __CAT_ARG(f, a) __OBSTRUCT(f) a
125 #define __REPEAT(...) __EVAL(__REPEAT_(__VA_ARGS__))
126 #define __REPEAT_INNER(...) __OBSTRUCT(__REPEAT_INDIRECT) () (__VA_ARGS__)
127 #define __REPEAT_INDIRECT() __REPEAT_
128 #define __REPEAT_(iter, itermacro, macro, a, ...) \
129 __OBSTRUCT(macro)(iter, a) \
130 __WHEN(__PP_NARG(__VA_ARGS__)) \
132 __OBSTRUCT(__REPEAT_INDIRECT) () ( \
133 itermacro(iter, a), itermacro, macro, __VA_ARGS__ \