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-rw-r--r--brandt.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/brandt.h b/brandt.h
index 101debf..6d68f0a 100644
--- a/brandt.h
+++ b/brandt.h
@@ -211,7 +211,8 @@ BRANDT_join (BRANDT_CbResult result,
* @param[in] outcome_public If 1, the auction winner and price will be public
* to all participants, if 0, this information will only be revealed to the
* winner and the seller.
- * @return A pointer, which should only be remembered and passed to
+ * @return If invalid parameters are passed, NULL is returned. Else the return
+ * value is a pointer, which should only be remembered and passed to
* libbrandt functions when the client needs to refer to this auction. This is a
* black-box pointer, do NOT dereference/change it or the data it points to!
*/