Add set_contains and int_set_contains functions.

These are convenience functions on top of set_search and
int_set_search. With a set, containment is often the most important
notion of interest, and it helps to be able to query this without
needing to declare a local struct set_entry*.

v2: Whitespace consistency (changes by anholt)

1 files changed, 12 insertions, 0 deletions

diff --git a/int-set.c b/int-set.c
index c58ee5d..853bb9e 100644
--- a/int-set.c
+++ b/int-set.c
@@ -137,6 +137,18 @@ int_set_destroy(struct int_set *set)
 	free(set);
 }
 
+/* Does the set contain an entry with the given value.
+ */
+bool
+int_set_contains(struct int_set *set, uint32_t value)
+{
+	struct int_set_entry *entry;
+
+	entry = int_set_search(set, value);
+
+	return entry != NULL;
+}
+
 /**
  * Finds a set entry with the given value
  *