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-rw-r--r--hash.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/hash.c b/hash.c
index 454ded2..3ef6668 100644
--- a/hash.c
+++ b/hash.c
@@ -1920,6 +1920,10 @@ rb_hash_values(VALUE hash)
* h.has_key?("a") #=> true
* h.has_key?("z") #=> false
*
+ * Note that <code>include?</code> and <code>member?</code> do not test member
+ * equality using <code>==</code> as do other Enumerables.
+ *
+ * See also Enumerable#include?
*/
VALUE