33 #define phn_lchild_get(a_type, a_field, a_phn)				\  argument
34 	(a_phn->a_field.phn_lchild)
35 #define phn_lchild_set(a_type, a_field, a_phn, a_lchild) do {		\  argument
36 	a_phn->a_field.phn_lchild = a_lchild;				\
39 #define phn_next_get(a_type, a_field, a_phn)				\  argument
40 	(a_phn->a_field.phn_next)
41 #define phn_prev_set(a_type, a_field, a_phn, a_prev) do {		\  argument
42 	a_phn->a_field.phn_prev = a_prev;				\
45 #define phn_prev_get(a_type, a_field, a_phn)				\  argument
46 	(a_phn->a_field.phn_prev)
47 #define phn_next_set(a_type, a_field, a_phn, a_next) do {		\  argument
48 	a_phn->a_field.phn_next = a_next;				\
83 #define ph_merge_siblings(a_type, a_field, a_phn, a_cmp, r_phn) do {	\  argument
86 	a_type *phn0 = a_phn;						\
183 #define ph_merge_children(a_type, a_field, a_phn, a_cmp, r_phn) do {	\  argument
184 	a_type *lchild = phn_lchild_get(a_type, a_field, a_phn);	\