Vim modules for navigating C++ code base?

Besides ctags / cscope,

what are good vim plugins for navigating C++ code base?

Ideally, when my cursor is on a variable name, I would like to be able to know:

what is the class of this variable, what functions can I call on this varaible, jump to开发者_如何学Python the class of this varaible ... and do this across multiple namespaces.

What tools do you suggest?

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You might look into Eclim, Vim and Eclipse integration. Best of both worlds.