@@ -13,10 +13,10 @@
|
||||
*/
|
||||
|
||||
#ifndef PH_H_
|
||||
#define PH_H_
|
||||
#define PH_H_
|
||||
|
||||
/* Node structure. */
|
||||
#define phn(a_type) \
|
||||
#define phn(a_type) \
|
||||
struct { \
|
||||
a_type *phn_prev; \
|
||||
a_type *phn_next; \
|
||||
@@ -24,31 +24,31 @@ struct { \
|
||||
}
|
||||
|
||||
/* Root structure. */
|
||||
#define ph(a_type) \
|
||||
#define ph(a_type) \
|
||||
struct { \
|
||||
a_type *ph_root; \
|
||||
}
|
||||
|
||||
/* Internal utility macros. */
|
||||
#define phn_lchild_get(a_type, a_field, a_phn) \
|
||||
#define phn_lchild_get(a_type, a_field, a_phn) \
|
||||
(a_phn->a_field.phn_lchild)
|
||||
#define phn_lchild_set(a_type, a_field, a_phn, a_lchild) do { \
|
||||
#define phn_lchild_set(a_type, a_field, a_phn, a_lchild) do { \
|
||||
a_phn->a_field.phn_lchild = a_lchild; \
|
||||
} while (0)
|
||||
|
||||
#define phn_next_get(a_type, a_field, a_phn) \
|
||||
#define phn_next_get(a_type, a_field, a_phn) \
|
||||
(a_phn->a_field.phn_next)
|
||||
#define phn_prev_set(a_type, a_field, a_phn, a_prev) do { \
|
||||
#define phn_prev_set(a_type, a_field, a_phn, a_prev) do { \
|
||||
a_phn->a_field.phn_prev = a_prev; \
|
||||
} while (0)
|
||||
|
||||
#define phn_prev_get(a_type, a_field, a_phn) \
|
||||
#define phn_prev_get(a_type, a_field, a_phn) \
|
||||
(a_phn->a_field.phn_prev)
|
||||
#define phn_next_set(a_type, a_field, a_phn, a_next) do { \
|
||||
#define phn_next_set(a_type, a_field, a_phn, a_next) do { \
|
||||
a_phn->a_field.phn_next = a_next; \
|
||||
} while (0)
|
||||
|
||||
#define phn_merge_ordered(a_type, a_field, a_phn0, a_phn1, a_cmp) do { \
|
||||
#define phn_merge_ordered(a_type, a_field, a_phn0, a_phn1, a_cmp) do { \
|
||||
a_type *phn0child; \
|
||||
\
|
||||
assert(a_phn0 != NULL); \
|
||||
@@ -64,7 +64,7 @@ struct { \
|
||||
phn_lchild_set(a_type, a_field, a_phn0, a_phn1); \
|
||||
} while (0)
|
||||
|
||||
#define phn_merge(a_type, a_field, a_phn0, a_phn1, a_cmp, r_phn) do { \
|
||||
#define phn_merge(a_type, a_field, a_phn0, a_phn1, a_cmp, r_phn) do { \
|
||||
if (a_phn0 == NULL) { \
|
||||
r_phn = a_phn1; \
|
||||
} else if (a_phn1 == NULL) { \
|
||||
@@ -80,7 +80,7 @@ struct { \
|
||||
} \
|
||||
} while (0)
|
||||
|
||||
#define ph_merge_siblings(a_type, a_field, a_phn, a_cmp, r_phn) do { \
|
||||
#define ph_merge_siblings(a_type, a_field, a_phn, a_cmp, r_phn) do { \
|
||||
a_type *head = NULL; \
|
||||
a_type *tail = NULL; \
|
||||
a_type *phn0 = a_phn; \
|
||||
@@ -167,7 +167,7 @@ struct { \
|
||||
r_phn = phn0; \
|
||||
} while (0)
|
||||
|
||||
#define ph_merge_aux(a_type, a_field, a_ph, a_cmp) do { \
|
||||
#define ph_merge_aux(a_type, a_field, a_ph, a_cmp) do { \
|
||||
a_type *phn = phn_next_get(a_type, a_field, a_ph->ph_root); \
|
||||
if (phn != NULL) { \
|
||||
phn_prev_set(a_type, a_field, a_ph->ph_root, NULL); \
|
||||
@@ -180,7 +180,7 @@ struct { \
|
||||
} \
|
||||
} while (0)
|
||||
|
||||
#define ph_merge_children(a_type, a_field, a_phn, a_cmp, r_phn) do { \
|
||||
#define ph_merge_children(a_type, a_field, a_phn, a_cmp, r_phn) do { \
|
||||
a_type *lchild = phn_lchild_get(a_type, a_field, a_phn); \
|
||||
if (lchild == NULL) { \
|
||||
r_phn = NULL; \
|
||||
@@ -194,7 +194,7 @@ struct { \
|
||||
* The ph_proto() macro generates function prototypes that correspond to the
|
||||
* functions generated by an equivalently parameterized call to ph_gen().
|
||||
*/
|
||||
#define ph_proto(a_attr, a_prefix, a_ph_type, a_type) \
|
||||
#define ph_proto(a_attr, a_prefix, a_ph_type, a_type) \
|
||||
a_attr void a_prefix##new(a_ph_type *ph); \
|
||||
a_attr bool a_prefix##empty(a_ph_type *ph); \
|
||||
a_attr a_type *a_prefix##first(a_ph_type *ph); \
|
||||
@@ -206,7 +206,7 @@ a_attr void a_prefix##remove(a_ph_type *ph, a_type *phn);
|
||||
* The ph_gen() macro generates a type-specific pairing heap implementation,
|
||||
* based on the above cpp macros.
|
||||
*/
|
||||
#define ph_gen(a_attr, a_prefix, a_ph_type, a_type, a_field, a_cmp) \
|
||||
#define ph_gen(a_attr, a_prefix, a_ph_type, a_type, a_field, a_cmp) \
|
||||
a_attr void \
|
||||
a_prefix##new(a_ph_type *ph) { \
|
||||
memset(ph, 0, sizeof(ph(a_type))); \
|
||||
|
Reference in New Issue
Block a user