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authorLukas Fleischer <calcurse@cryptocrack.de>2011-10-04 09:34:06 +0200
committerLukas Fleischer <calcurse@cryptocrack.de>2011-10-05 12:25:48 +0200
commit1fa9564916ea9cd92622b5a549693d23fbf35bcb (patch)
tree15994eb6cbbbfc0e59c14a3de0e1635240a5c494 /src/llist.c
parenta0afb7ded2fba68e710afda1053dba2a20b4665f (diff)
downloadcalcurse-1fa9564916ea9cd92622b5a549693d23fbf35bcb.tar.gz
calcurse-1fa9564916ea9cd92622b5a549693d23fbf35bcb.zip
src/llist.c: Add llist_next_filter()
This convenience function can be used to return the successor of a list item if it is matched by a filter callback and return NULL otherwise. We will use this for an improved version of the LLIST_FIND_FOREACH macro that can be used whenever results are known to be continuous. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
Diffstat (limited to 'src/llist.c')
-rw-r--r--src/llist.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/llist.c b/src/llist.c
index 7611595..a85cfa9 100644
--- a/src/llist.c
+++ b/src/llist.c
@@ -115,6 +115,19 @@ llist_next (llist_item_t *i)
}
/*
+ * Return the successor of a list item if it is matched by some filter
+ * callback. Return NULL otherwise.
+ */
+llist_item_t *
+llist_next_filter (llist_item_t *i, long data, llist_fn_match_t fn_match)
+{
+ if (i && i->next && fn_match (i->next->data, data))
+ return i->next;
+ else
+ return NULL;
+}
+
+/*
* Get the actual data of an item.
*/
void *