Fix comment.
diff --git a/ndn-cpp/c/util/ndn_memory.h b/ndn-cpp/c/util/ndn_memory.h
index a35ef89..00202a6 100644
--- a/ndn-cpp/c/util/ndn_memory.h
+++ b/ndn-cpp/c/util/ndn_memory.h
@@ -4,7 +4,7 @@
  */
 
 /*
- * Based on HAVE_MEMCPY and HAVE_MEMSET in config.h, use the library version or a local implementation of memcpy and memset.
+ * Based on HAVE_MEMCPY and HAVE_MEMSET in config.h, use the library version or a local implementation of memcmp, memcpy and memset.
  */
 
 #ifndef NDN_MEMORY_H