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src/llist.c: Add llist_next_filter()

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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>
This commit is contained in:
Lukas Fleischer
2011-10-04 09:34:06 +02:00
parent a0afb7ded2
commit 1fa9564916
3 changed files with 18 additions and 0 deletions
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src/llist_ts.h
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@@ -64,6 +64,8 @@ struct llist_ts {
#define LLIST_TS_FIRST(l_ts) llist_first ((llist_t *)l_ts)
#define LLIST_TS_NTH(l_ts, n) llist_nth ((llist_t *)l_ts, n)
#define LLIST_TS_NEXT(i) llist_next (i)
#define LLIST_TS_NEXT_FILTER(i, data, fn_match) \
llist_next_filter (i, data, (llist_fn_match_t)fn_match)
#define LLIST_TS_FIND_FIRST(l_ts, data, fn_match) \
llist_find_first ((llist_t *)l_ts, data, (llist_fn_match_t)fn_match)
#define LLIST_TS_FIND_NEXT(i, data, fn_match) \