Visual Studio has some fairly decent tools ("Find all references", "Go to definition/declaration"), although they tend to fall over in macro-heavy C++.
A lot of my coworkers swear by Understand, but I haven't tried it myself.
If only these tools would wirk reliably. I have seen too many cases when find all references did not find the reference I was looking for (even though it was in no way special or obfuscated). Goto definition works pretty well though.
A lot of my coworkers swear by Understand, but I haven't tried it myself.