@@ -20,17 +20,17 @@
|
||||
*/
|
||||
|
||||
#ifndef RB_H_
|
||||
#define RB_H_
|
||||
#define RB_H_
|
||||
|
||||
#ifdef RB_COMPACT
|
||||
/* Node structure. */
|
||||
#define rb_node(a_type) \
|
||||
#define rb_node(a_type) \
|
||||
struct { \
|
||||
a_type *rbn_left; \
|
||||
a_type *rbn_right_red; \
|
||||
}
|
||||
#else
|
||||
#define rb_node(a_type) \
|
||||
#define rb_node(a_type) \
|
||||
struct { \
|
||||
a_type *rbn_left; \
|
||||
a_type *rbn_right; \
|
||||
@@ -39,48 +39,48 @@ struct { \
|
||||
#endif
|
||||
|
||||
/* Root structure. */
|
||||
#define rb_tree(a_type) \
|
||||
#define rb_tree(a_type) \
|
||||
struct { \
|
||||
a_type *rbt_root; \
|
||||
}
|
||||
|
||||
/* Left accessors. */
|
||||
#define rbtn_left_get(a_type, a_field, a_node) \
|
||||
#define rbtn_left_get(a_type, a_field, a_node) \
|
||||
((a_node)->a_field.rbn_left)
|
||||
#define rbtn_left_set(a_type, a_field, a_node, a_left) do { \
|
||||
#define rbtn_left_set(a_type, a_field, a_node, a_left) do { \
|
||||
(a_node)->a_field.rbn_left = a_left; \
|
||||
} while (0)
|
||||
|
||||
#ifdef RB_COMPACT
|
||||
/* Right accessors. */
|
||||
#define rbtn_right_get(a_type, a_field, a_node) \
|
||||
#define rbtn_right_get(a_type, a_field, a_node) \
|
||||
((a_type *) (((intptr_t) (a_node)->a_field.rbn_right_red) \
|
||||
& ((ssize_t)-2)))
|
||||
#define rbtn_right_set(a_type, a_field, a_node, a_right) do { \
|
||||
#define rbtn_right_set(a_type, a_field, a_node, a_right) do { \
|
||||
(a_node)->a_field.rbn_right_red = (a_type *) (((uintptr_t) a_right) \
|
||||
| (((uintptr_t) (a_node)->a_field.rbn_right_red) & ((size_t)1))); \
|
||||
} while (0)
|
||||
|
||||
/* Color accessors. */
|
||||
#define rbtn_red_get(a_type, a_field, a_node) \
|
||||
#define rbtn_red_get(a_type, a_field, a_node) \
|
||||
((bool) (((uintptr_t) (a_node)->a_field.rbn_right_red) \
|
||||
& ((size_t)1)))
|
||||
#define rbtn_color_set(a_type, a_field, a_node, a_red) do { \
|
||||
#define rbtn_color_set(a_type, a_field, a_node, a_red) do { \
|
||||
(a_node)->a_field.rbn_right_red = (a_type *) ((((intptr_t) \
|
||||
(a_node)->a_field.rbn_right_red) & ((ssize_t)-2)) \
|
||||
| ((ssize_t)a_red)); \
|
||||
} while (0)
|
||||
#define rbtn_red_set(a_type, a_field, a_node) do { \
|
||||
#define rbtn_red_set(a_type, a_field, a_node) do { \
|
||||
(a_node)->a_field.rbn_right_red = (a_type *) (((uintptr_t) \
|
||||
(a_node)->a_field.rbn_right_red) | ((size_t)1)); \
|
||||
} while (0)
|
||||
#define rbtn_black_set(a_type, a_field, a_node) do { \
|
||||
#define rbtn_black_set(a_type, a_field, a_node) do { \
|
||||
(a_node)->a_field.rbn_right_red = (a_type *) (((intptr_t) \
|
||||
(a_node)->a_field.rbn_right_red) & ((ssize_t)-2)); \
|
||||
} while (0)
|
||||
|
||||
/* Node initializer. */
|
||||
#define rbt_node_new(a_type, a_field, a_rbt, a_node) do { \
|
||||
#define rbt_node_new(a_type, a_field, a_rbt, a_node) do { \
|
||||
/* Bookkeeping bit cannot be used by node pointer. */ \
|
||||
assert(((uintptr_t)(a_node) & 0x1) == 0); \
|
||||
rbtn_left_set(a_type, a_field, (a_node), NULL); \
|
||||
@@ -89,27 +89,27 @@ struct { \
|
||||
} while (0)
|
||||
#else
|
||||
/* Right accessors. */
|
||||
#define rbtn_right_get(a_type, a_field, a_node) \
|
||||
#define rbtn_right_get(a_type, a_field, a_node) \
|
||||
((a_node)->a_field.rbn_right)
|
||||
#define rbtn_right_set(a_type, a_field, a_node, a_right) do { \
|
||||
#define rbtn_right_set(a_type, a_field, a_node, a_right) do { \
|
||||
(a_node)->a_field.rbn_right = a_right; \
|
||||
} while (0)
|
||||
|
||||
/* Color accessors. */
|
||||
#define rbtn_red_get(a_type, a_field, a_node) \
|
||||
#define rbtn_red_get(a_type, a_field, a_node) \
|
||||
((a_node)->a_field.rbn_red)
|
||||
#define rbtn_color_set(a_type, a_field, a_node, a_red) do { \
|
||||
#define rbtn_color_set(a_type, a_field, a_node, a_red) do { \
|
||||
(a_node)->a_field.rbn_red = (a_red); \
|
||||
} while (0)
|
||||
#define rbtn_red_set(a_type, a_field, a_node) do { \
|
||||
#define rbtn_red_set(a_type, a_field, a_node) do { \
|
||||
(a_node)->a_field.rbn_red = true; \
|
||||
} while (0)
|
||||
#define rbtn_black_set(a_type, a_field, a_node) do { \
|
||||
#define rbtn_black_set(a_type, a_field, a_node) do { \
|
||||
(a_node)->a_field.rbn_red = false; \
|
||||
} while (0)
|
||||
|
||||
/* Node initializer. */
|
||||
#define rbt_node_new(a_type, a_field, a_rbt, a_node) do { \
|
||||
#define rbt_node_new(a_type, a_field, a_rbt, a_node) do { \
|
||||
rbtn_left_set(a_type, a_field, (a_node), NULL); \
|
||||
rbtn_right_set(a_type, a_field, (a_node), NULL); \
|
||||
rbtn_red_set(a_type, a_field, (a_node)); \
|
||||
@@ -117,12 +117,12 @@ struct { \
|
||||
#endif
|
||||
|
||||
/* Tree initializer. */
|
||||
#define rb_new(a_type, a_field, a_rbt) do { \
|
||||
#define rb_new(a_type, a_field, a_rbt) do { \
|
||||
(a_rbt)->rbt_root = NULL; \
|
||||
} while (0)
|
||||
|
||||
/* Internal utility macros. */
|
||||
#define rbtn_first(a_type, a_field, a_rbt, a_root, r_node) do { \
|
||||
#define rbtn_first(a_type, a_field, a_rbt, a_root, r_node) do { \
|
||||
(r_node) = (a_root); \
|
||||
if ((r_node) != NULL) { \
|
||||
for (; \
|
||||
@@ -132,7 +132,7 @@ struct { \
|
||||
} \
|
||||
} while (0)
|
||||
|
||||
#define rbtn_last(a_type, a_field, a_rbt, a_root, r_node) do { \
|
||||
#define rbtn_last(a_type, a_field, a_rbt, a_root, r_node) do { \
|
||||
(r_node) = (a_root); \
|
||||
if ((r_node) != NULL) { \
|
||||
for (; rbtn_right_get(a_type, a_field, (r_node)) != NULL; \
|
||||
@@ -141,14 +141,14 @@ struct { \
|
||||
} \
|
||||
} while (0)
|
||||
|
||||
#define rbtn_rotate_left(a_type, a_field, a_node, r_node) do { \
|
||||
#define rbtn_rotate_left(a_type, a_field, a_node, r_node) do { \
|
||||
(r_node) = rbtn_right_get(a_type, a_field, (a_node)); \
|
||||
rbtn_right_set(a_type, a_field, (a_node), \
|
||||
rbtn_left_get(a_type, a_field, (r_node))); \
|
||||
rbtn_left_set(a_type, a_field, (r_node), (a_node)); \
|
||||
} while (0)
|
||||
|
||||
#define rbtn_rotate_right(a_type, a_field, a_node, r_node) do { \
|
||||
#define rbtn_rotate_right(a_type, a_field, a_node, r_node) do { \
|
||||
(r_node) = rbtn_left_get(a_type, a_field, (a_node)); \
|
||||
rbtn_left_set(a_type, a_field, (a_node), \
|
||||
rbtn_right_get(a_type, a_field, (r_node))); \
|
||||
@@ -160,7 +160,7 @@ struct { \
|
||||
* functions generated by an equivalently parameterized call to rb_gen().
|
||||
*/
|
||||
|
||||
#define rb_proto(a_attr, a_prefix, a_rbt_type, a_type) \
|
||||
#define rb_proto(a_attr, a_prefix, a_rbt_type, a_type) \
|
||||
a_attr void \
|
||||
a_prefix##new(a_rbt_type *rbtree); \
|
||||
a_attr bool \
|
||||
@@ -335,7 +335,7 @@ a_prefix##destroy(a_rbt_type *rbtree, void (*cb)(a_type *, void *), \
|
||||
* has begun.
|
||||
* arg : Opaque pointer passed to cb().
|
||||
*/
|
||||
#define rb_gen(a_attr, a_prefix, a_rbt_type, a_type, a_field, a_cmp) \
|
||||
#define rb_gen(a_attr, a_prefix, a_rbt_type, a_type, a_field, a_cmp) \
|
||||
a_attr void \
|
||||
a_prefix##new(a_rbt_type *rbtree) { \
|
||||
rb_new(a_type, a_field, rbtree); \
|
||||
|
Reference in New Issue
Block a user