add a small comment

2007-05-11 22:33:51 +02:00
parent b3aee2deb2
commit 3834d248de
1 changed files with 3 additions and 0 deletions
--- a/src/core/uid-manager.h
+++ b/src/core/uid-manager.h
@@ -27,6 +27,9 @@

 namespace ns3 {

+/**
+ * zero is never a valid uid value.
+ */
 class UidManager
 {
 public: