diff --git a/clang/TODO.txt b/clang/TODO.txt
index 17fba95bd986..3ef14617cda4 100644
--- a/clang/TODO.txt
+++ b/clang/TODO.txt
@@ -28,4 +28,6 @@ This specific diagnostic is implemented, but others should be updated.
 
 //===---------------------------------------------------------------------===//
 
-
+C++ (checker): For iterators, warn of the use of "iterator++" instead
+  of "++iterator" when when the value returned by operator++(int) is
+  ignored.