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
|
#ifndef _PMISCDEF_H
#define _PMISCDEF_H 1
#include <string.h>
/* snprintf MS VC++ support;
* thanks to Viacheslav Sheveliov <slavash@aha.ru>
*/
#ifdef _MSC_VER
# define snprintf _snprintf
#endif
/* printf ptrdiff_t format modifier */
#if __STDC_VERSION__ >= 199901L
# define TO_PTRDIFF_T(X) (X)
# define MOD_TD "%td"
#elif defined _MSC_VER
# define TO_PTRDIFF_T(X) (X)
# define MOD_TD "%Id"
#else
# define TO_PTRDIFF_T(X) ((long) (X))
# define MOD_TD "%ld"
#endif
#if ! defined HAVE_STRDUP && ! defined strdup
# if defined HAVE__STRDUP
# define strdup _strdup
# else
# define strdup(str) strcpy(malloc(strlen(str) + 1), str)
# endif
#endif
#define COMPILE_TIME_ASSERT(x) \
void __cta_proto__(int __cta_foo__[(x) ? 1 : -1])
#ifdef __GNUC__
#define FORMAT_PRINTF(X,Y) __attribute__ ((__format__ (__printf__, X, Y)))
#else
#define FORMAT_PRINTF(X,Y)
#endif
#if defined(__GNUC__) && !(defined(PEDANTIC))
#define INLINE inline
#else /* !__GNUC__ */
#define INLINE
#endif /* __GNUC__ */
/* C89 compatible flexible array
struct header {
size_t len;
unsigned char data[FLEXIBLE_SIZE];
};
struct header *my_header = malloc(SIZEOF_FLEXIBLE(struct header, data, n));
expands to
= malloc(offsetof(struct header, data) + n * sizeof my_header->data);
Setting FLEXIBLE_SIZE to SIZE_MAX almost ensures this will fail :
struct header *my_header = malloc(sizeof *my_header);
*/
#define FLEXIBLE_SIZE SIZE_MAX /* or whatever maximum length for an array */
#define SIZEOF_FLEXIBLE(type, member, length) \
( offsetof(type, member) + (length) * sizeof ((type *)0)->member[0] )
#endif /* pmiscdef.h */
/*
* Local Variables:
* mode: c
* End:
*/
|
