Added a LIST_FOR_EACH_ENTRY_SAFE helper macro.

341ba0f6 · Juan Lang · Alexandre Julliard · 8d1cf4eb · 341ba0f6
Commit 341ba0f6 authored Aug 29, 2005 by Juan Lang Committed by Alexandre Julliard Aug 29, 2005
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list.h include/wine/list.h +8 -0

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--- a/include/wine/list.h
+++ b/include/wine/list.h
@@ -155,6 +155,14 @@ inline static void list_init( struct list *list )
         &(elem)->field != (list); \
         (elem) = LIST_ENTRY((elem)->field.next, type, field))

+/* iterate through the list using a list entry, with safety against removal */
+#define LIST_FOR_EACH_ENTRY_SAFE(cursor, cursor2, list, type, field) \
+    for ((cursor) = LIST_ENTRY((list)->next, type, field), \
+         (cursor2) = LIST_ENTRY((cursor)->field.next, type, field); \
+         &(cursor)->field != (list); \
+         (cursor) = (cursor2), \
+         (cursor2) = LIST_ENTRY((cursor)->field.next, type, field))
+
 /* macros for statically initialized lists */
 #define LIST_INIT(list)  { &(list), &(list) }