X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=set.h;h=a16cbedbfc8e309f8a841df506779f9b439cf1de;hp=d8ef7aa540676559fde16eafc8b3d5b8d7c70f75;hb=44d8db9e5aa86165c97289f6c78a7e42bac78362;hpb=f00b3eda2f92b2dcd13c50749ec5e7fce6720b52

diff --git a/set.h b/set.h
index d8ef7aa54..a16cbedbf 100644
--- a/set.h
+++ b/set.h
@@ -14,8 +14,9 @@
 typedef struct Set Set;
 
 Set *set_new(hash_func_t hash_func, compare_func_t compare_func);
-Set* set_copy(Set *s);
 void set_free(Set* s);
+Set* set_copy(Set *s);
+int set_ensure_allocated(Set **s, hash_func_t hash_func, compare_func_t compare_func);
 
 int set_put(Set *s, void *value);
 int set_replace(Set *s, void *value);
@@ -27,18 +28,19 @@ int set_merge(Set *s, Set *other);
 unsigned set_size(Set *s);
 bool set_isempty(Set *s);
 
-void *set_iterate(Set *s, void **state);
-void *set_iterate_backwards(Set *s, void **state);
+void *set_iterate(Set *s, Iterator *i);
+void *set_iterate_backwards(Set *s, Iterator *i);
+void *set_iterate_skip(Set *s, void *value, Iterator *i);
 
 void set_clear(Set *s);
 void *set_steal_first(Set *s);
 void* set_first(Set *s);
 void* set_last(Set *s);
 
-#define SET_FOREACH(e, s, state) \
-        for ((state) = NULL, (e) = set_iterate((s), &(state)); (e); (e) = set_iterate((s), &(state)))
+#define SET_FOREACH(e, s, i) \
+        for ((i) = ITERATOR_FIRST, (e) = set_iterate((s), &(i)); (e); (e) = set_iterate((s), &(i)))
 
-#define SET_FOREACH_BACKWARDS(e, s, state) \
-        for ((state) = NULL, (e) = set_iterate_backwards((s), &(state)); (e); (e) = set_iterate_backwards((s), &(state)))
+#define SET_FOREACH_BACKWARDS(e, s, i) \
+        for ((i) = ITERATOR_LAST, (e) = set_iterate_backwards((s), &(i)); (e); (e) = set_iterate_backwards((s), &(i)))
 
 #endif