Generating UML from C++ code?

Here are a few options:

Step-by-Step Guide to Reverse Engineering Code into UML Diagrams with Microsoft Visio 2000 - http://msdn.microsoft.com/en-us/library/aa140255(office.10).aspx

BoUML - http://bouml.fr/features.html

StarUML - http://staruml.sourceforge.net/en/

Reverse engineering of the UML class diagram from C++ code in presence of weakly typed containers (2001) - http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.27.9064

Umbrello UML Modeller - http://uml.sourceforge.net/

A list of other tools to look at - http://plg.uwaterloo.ca/~migod/uml.html

I believe Enterprise Architect can do that.

I've developed a tool called Doxygraph which can parse the XML generated by Doxygen and turn it into an interactive UML class diagram which you can view in a web browser or import into any software that can read Graphviz "dot" files.

If its just diagrams that you want, doxygen does a pretty good job.