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mirror of https://github.com/systemd/systemd-stable.git synced 2024-12-22 13:33:56 +03:00
systemd-stable/macro.h
Lennart Poettering 6091827530 initial commit
2009-11-18 00:42:52 +01:00

77 lines
2.6 KiB
C

/*-*- Mode: C; c-basic-offset: 8 -*-*/
#ifndef foomacrohfoo
#define foomacrohfoo
#include <assert.h>
#include <sys/types.h>
#define __printf_attr(a,b) __attribute__ ((format (printf, a, b)))
#define __sentinel __attribute__ ((sentinel))
#define __noreturn __attribute__((noreturn))
#define __unused __attribute__ ((unused))
#define __destructor __attribute__ ((destructor))
#define __pure __attribute__ ((pure))
#define __const __attribute__ ((const))
#define __deprecated __attribute__ ((deprecated))
#define __packed __attribute__ ((packed))
#define __malloc __attribute__ ((malloc))
/* Rounds up */
static inline size_t ALIGN(size_t l) {
return ((l + sizeof(void*) - 1) & ~(sizeof(void*) - 1));
}
#define ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0]))
#define MAX(a,b) \
__extension__ ({ \
typeof(a) _a = (a); \
typeof(b) _b = (b); \
_a > _b ? _a : _b; \
})
#define MIN(a,b) \
__extension__ ({ \
typeof(a) _a = (a); \
typeof(b) _b = (b); \
_a < _b ? _a : _b; \
})
#define CLAMP(x, low, high) \
__extension__ ({ \
typeof(x) _x = (x); \
typeof(low) _low = (low); \
typeof(high) _high = (high); \
((_x > _high) ? _high : ((_x < _low) ? _low : _x)); \
})
#define assert_not_reached(t) assert(!(t))
#define assert_se(x) assert(x)
#define assert_cc(expr) \
do { \
switch (0) { \
case 0: \
case !!(expr): \
; \
} \
} while (false)
#define PTR_TO_UINT(p) ((unsigned int) ((uintptr_t) (p)))
#define UINT_TO_PTR(u) ((void*) ((uintptr_t) (u)))
#define PTR_TO_UINT32(p) ((uint32_t) ((uintptr_t) (p)))
#define UINT32_TO_PTR(u) ((void*) ((uintptr_t) (u)))
#define PTR_TO_INT(p) ((int) ((intptr_t) (p)))
#define INT_TO_PTR(u) ((void*) ((intptr_t) (u)))
#define TO_INT32(p) ((int32_t) ((intptr_t) (p)))
#define INT32_TO_PTR(u) ((void*) ((intptr_t) (u)))
#endif