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Assert compact color bit is unused

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Signed-off-by: Joshua Kahn <jkahn@barracuda.com>

This resolves #280.
This commit is contained in:
Steve Dougherty 2015-09-11 17:56:28 -04:00 committed by Jason Evans
parent f97298bfc1
commit bd418ce11e
1 changed files with 10 additions and 1 deletions
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11
include/jemalloc/internal/rb.h
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@ -79,6 +79,15 @@ struct { \
(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 { \
/* Bookkeeping bit cannot be used by node pointer. */ \
assert(((uintptr_t)(a_node) & 0x1) == 0); \
rbtn_left_set(a_type, a_field, (a_node), &(a_rbt)->rbt_nil); \
rbtn_right_set(a_type, a_field, (a_node), &(a_rbt)->rbt_nil); \
rbtn_red_set(a_type, a_field, (a_node)); \
} while (0)
#else
/* Right accessors. */
#define rbtn_right_get(a_type, a_field, a_node) \
@ -99,7 +108,6 @@ struct { \
#define rbtn_black_set(a_type, a_field, a_node) do { \
(a_node)->a_field.rbn_red = false; \
} while (0)
#endif
/* Node initializer. */
#define rbt_node_new(a_type, a_field, a_rbt, a_node) do { \
@ -107,6 +115,7 @@ struct { \
rbtn_right_set(a_type, a_field, (a_node), &(a_rbt)->rbt_nil); \
rbtn_red_set(a_type, a_field, (a_node)); \
} while (0)
#endif
/* Tree initializer. */
#define rb_new(a_type, a_field, a_rbt) do { \