What you want is something like GCC's "-Weffc++" on steroids. In fact, what you really want is a refactoring browser.

http://c2.com/cgi/wiki?ThereIsNoRefactoringBrowserForCpp

although that page title seems to underestimate the actual number by about four: Xrefactory, Slickedit, possibly Ref++ (whose websites seem to have disappeared), and Devexpress Refactor. I haven't used any of them, though.

Peter