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60918275 LP |
1 | /*-*- Mode: C; c-basic-offset: 8 -*-*/ |
2 | ||
3 | #ifndef foomacrohfoo | |
4 | #define foomacrohfoo | |
5 | ||
a7334b09 LP |
6 | /*** |
7 | This file is part of systemd. | |
8 | ||
9 | Copyright 2010 Lennart Poettering | |
10 | ||
11 | systemd is free software; you can redistribute it and/or modify it | |
12 | under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2 of the License, or | |
14 | (at your option) any later version. | |
15 | ||
16 | systemd is distributed in the hope that it will be useful, but | |
17 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
19 | General Public License for more details. | |
20 | ||
21 | You should have received a copy of the GNU General Public License | |
22 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
23 | ***/ | |
24 | ||
60918275 LP |
25 | #include <assert.h> |
26 | #include <sys/types.h> | |
27 | ||
a65d5701 LP |
28 | #define _printf_attr(a,b) __attribute__ ((format (printf, a, b))) |
29 | #define _sentinel __attribute__ ((sentinel)) | |
30 | #define _noreturn __attribute__((noreturn)) | |
31 | #define _unused __attribute__ ((unused)) | |
32 | #define _destructor __attribute__ ((destructor)) | |
33 | #define _pure __attribute__ ((pure)) | |
34 | #define _const __attribute__ ((const)) | |
35 | #define _deprecated __attribute__ ((deprecated)) | |
36 | #define _packed __attribute__ ((packed)) | |
37 | #define _malloc __attribute__ ((malloc)) | |
60918275 LP |
38 | |
39 | /* Rounds up */ | |
40 | static inline size_t ALIGN(size_t l) { | |
41 | return ((l + sizeof(void*) - 1) & ~(sizeof(void*) - 1)); | |
42 | } | |
43 | ||
44 | #define ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0])) | |
45 | ||
46 | #define MAX(a,b) \ | |
47 | __extension__ ({ \ | |
48 | typeof(a) _a = (a); \ | |
49 | typeof(b) _b = (b); \ | |
50 | _a > _b ? _a : _b; \ | |
51 | }) | |
52 | ||
53 | #define MIN(a,b) \ | |
54 | __extension__ ({ \ | |
55 | typeof(a) _a = (a); \ | |
56 | typeof(b) _b = (b); \ | |
57 | _a < _b ? _a : _b; \ | |
58 | }) | |
59 | ||
60 | #define CLAMP(x, low, high) \ | |
61 | __extension__ ({ \ | |
62 | typeof(x) _x = (x); \ | |
63 | typeof(low) _low = (low); \ | |
64 | typeof(high) _high = (high); \ | |
65 | ((_x > _high) ? _high : ((_x < _low) ? _low : _x)); \ | |
66 | }) | |
67 | ||
68 | ||
69 | ||
70 | #define assert_not_reached(t) assert(!(t)) | |
71 | ||
72 | #define assert_se(x) assert(x) | |
73 | ||
74 | #define assert_cc(expr) \ | |
75 | do { \ | |
76 | switch (0) { \ | |
77 | case 0: \ | |
78 | case !!(expr): \ | |
79 | ; \ | |
80 | } \ | |
81 | } while (false) | |
82 | ||
83 | #define PTR_TO_UINT(p) ((unsigned int) ((uintptr_t) (p))) | |
84 | #define UINT_TO_PTR(u) ((void*) ((uintptr_t) (u))) | |
85 | ||
86 | #define PTR_TO_UINT32(p) ((uint32_t) ((uintptr_t) (p))) | |
87 | #define UINT32_TO_PTR(u) ((void*) ((uintptr_t) (u))) | |
88 | ||
89 | #define PTR_TO_INT(p) ((int) ((intptr_t) (p))) | |
90 | #define INT_TO_PTR(u) ((void*) ((intptr_t) (u))) | |
91 | ||
92 | #define TO_INT32(p) ((int32_t) ((intptr_t) (p))) | |
93 | #define INT32_TO_PTR(u) ((void*) ((intptr_t) (u))) | |
94 | ||
476fe607 LP |
95 | #define memzero(x,l) (memset((x), 0, (l))) |
96 | #define zero(x) (memzero(&(x), sizeof(x))) | |
97 | ||
034c6ed7 LP |
98 | #define char_array_0(x) x[sizeof(x)-1] = 0; |
99 | ||
60918275 | 100 | #endif |