[babeltrace.git] / include / babeltrace / compiler.h

#ifndef _BABELTRACE_COMPILER_H
#define _BABELTRACE_COMPILER_H

#define MAYBE_BUILD_BUG_ON(cond) ((void)sizeof(char[1 - 2 * !!(cond)]))

#ifndef container_of
#define container_of(ptr, type, member)					\
	({								\
		const typeof(((type *)NULL)->member) * __ptr = (ptr);	\
		(type *)((char *)__ptr - offsetof(type, member));	\
	})
#endif

#endif /* _BABELTRACE_COMPILER_H */
Commit	Line	Data
d79865b9 MD	1	#ifndef _BABELTRACE_COMPILER_H
	2	#define _BABELTRACE_COMPILER_H
	3
	4	#define MAYBE_BUILD_BUG_ON(cond) ((void)sizeof(char[1 - 2 * !!(cond)]))
	5
fc93b2bd MD	6	#ifndef container_of
	7	#define container_of(ptr, type, member) \
	8	({ \
	9	const typeof(((type )NULL)->member) __ptr = (ptr); \
	10	(type )((char )__ptr - offsetof(type, member)); \
	11	})
	12	#endif
	13
d79865b9	14	#endif /* _BABELTRACE_COMPILER_H */