JetBrains just released their ReSharper for C++ in version 1.0, after a year of an open beta program.
From the website:
ReSharper C++ makes Microsoft Visual Studio a much better IDE with refactorings, navigation, code inspections, quick-fixes, code generation and more productivity features for C++ development.
ReSharper C++ extends Visual Studio with over 60 C++ code inspections that are displayed instantly, as you type.
For many of these inspections, ReSharper C++ provides quick-fixes (light bulbs) to improve code in one way or another.