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Fix a bug causing tree first / last convenience pointers to be incorrect upon last node removal.

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This commit is contained in:
Andreas Öman 2009-07-16 18:40:33 +00:00
parent e8a7044f14
commit 686d300046
1 changed files with 6 additions and 6 deletions
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12
src/redblack.h
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@ -300,18 +300,18 @@ do { \
typeof(e) x, y, z = e, x_parent, w; \
\
y = z; \
if (y == (head)->first) { \
(head)->first = RB_NEXT(y, field); \
} \
if (y == (head)->last) { \
(head)->last = RB_PREV(y, field); \
} \
if (y->field.left == NULL) { \
x = y->field.right; \
if (y == (head)->first) { \
(head)->first = RB_NEXT(y, field); \
} \
} \
else { \
if (y->field.right == NULL) { \
x = y->field.left; \
if (y == (head)->last) { \
(head)->last = RB_PREV(y, field); \
} \
} \
else { \
y = y->field.right; \