stddef.h File Reference

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Macros
#define	NULL   ((void *) 0)
#define	offsetof(TYPE, MEMBER)   ((size_t) &((TYPE *) 0)->MEMBER)

Typedefs
typedef __PTRDIFF_TYPE__	ptrdiff_t
	GCC predefines the types we need for ptrdiff_t and size_t, so that we don't have to guess. More...
typedef __SIZE_TYPE__	size_t
	lib/stddef.h More...

Macro Definition Documentation

NULL

#define NULL   ((void *) 0)

Definition at line 4 of file stddef.h.

offsetof

#define offsetof	(		TYPE,
			MEMBER
	)		((size_t) &((TYPE *) 0)->MEMBER)

Definition at line 5 of file stddef.h.

Typedef Documentation

ptrdiff_t

typedef __PTRDIFF_TYPE__ ptrdiff_t

GCC predefines the types we need for ptrdiff_t and size_t, so that we don't have to guess.

Definition at line 9 of file stddef.h.

size_t

typedef __SIZE_TYPE__ size_t

lib/stddef.h

Definition at line 10 of file stddef.h.