#define SetRangeEmpty(ptr,size) memset(ptr, 0, (size) * sizeof((ptr)[0]))
#define EntrySetEmpty(value) (value).node = NULL
#define EntrySetDeleted(value) (value).node = (ir_node*) -1
#define SetRangeEmpty(ptr,size) memset(ptr, 0, (size) * sizeof((ptr)[0]))
#define EntrySetEmpty(value) (value).node = NULL
#define EntrySetDeleted(value) (value).node = (ir_node*) -1