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rbtree: Clarify the loop conditions to avoid confusing older gcc. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
oldstable
Alexandre Julliard 2017-10-25 18:41:10 +02:00
parent 0ad8bb4ecf
commit 5d01ebab89
1 changed files with 2 additions and 2 deletions
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4
include/wine/rbtree.h
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@ -147,7 +147,7 @@ static inline struct wine_rb_entry *wine_rb_postorder_next(struct wine_rb_entry
/* iterate through the tree using a tree entry */
#define WINE_RB_FOR_EACH_ENTRY(elem, tree, type, field) \
for ((elem) = WINE_RB_ENTRY_VALUE(wine_rb_head((tree)->root), type, field); \
&(elem)->field; \
(elem) != WINE_RB_ENTRY_VALUE(0, type, field); \
(elem) = WINE_RB_ENTRY_VALUE(wine_rb_next(&elem->field), type, field))
/* iterate through the tree using using postorder, making it safe to free the entry */
@ -159,7 +159,7 @@ static inline struct wine_rb_entry *wine_rb_postorder_next(struct wine_rb_entry
/* iterate through the tree using a tree entry and postorder, making it safe to free the entry */
#define WINE_RB_FOR_EACH_ENTRY_DESTRUCTOR(elem, elem2, tree, type, field) \
for ((elem) = WINE_RB_ENTRY_VALUE(wine_rb_postorder_head((tree)->root), type, field); \
&(elem)->field \
(elem) != WINE_RB_ENTRY_VALUE(0, type, field) \
&& (((elem2) = WINE_RB_ENTRY_VALUE(wine_rb_postorder_next(&(elem)->field), type, field)) || 1); \
(elem) = (elem2))