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rbtree: Clarify the loop conditions to avoid confusing older gcc.
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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@ -147,7 +147,7 @@ static inline struct wine_rb_entry *wine_rb_postorder_next(struct wine_rb_entry
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/* iterate through the tree using a tree entry */
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#define WINE_RB_FOR_EACH_ENTRY(elem, tree, type, field) \
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for ((elem) = WINE_RB_ENTRY_VALUE(wine_rb_head((tree)->root), type, field); \
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&(elem)->field; \
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(elem) != WINE_RB_ENTRY_VALUE(0, type, field); \
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(elem) = WINE_RB_ENTRY_VALUE(wine_rb_next(&elem->field), type, field))
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/* iterate through the tree using using postorder, making it safe to free the entry */
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@ -159,7 +159,7 @@ static inline struct wine_rb_entry *wine_rb_postorder_next(struct wine_rb_entry
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/* iterate through the tree using a tree entry and postorder, making it safe to free the entry */
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#define WINE_RB_FOR_EACH_ENTRY_DESTRUCTOR(elem, elem2, tree, type, field) \
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for ((elem) = WINE_RB_ENTRY_VALUE(wine_rb_postorder_head((tree)->root), type, field); \
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&(elem)->field \
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(elem) != WINE_RB_ENTRY_VALUE(0, type, field) \
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&& (((elem2) = WINE_RB_ENTRY_VALUE(wine_rb_postorder_next(&(elem)->field), type, field)) || 1); \
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(elem) = (elem2))
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