There is an interesting article article by The ALARCOS Research Group, University of Castilla-La Mancha, Spain here: might give some insight. I found helpful.
I don't know about this specific metric but I used the CppDepend software in another company and it gave us tens of different metrics (cyclomatic complexity, circular dependancies, etc.). You might try a demo version and see if it can give you the specific metric you need or ask them for a more or less equivalent one. There is also a possibility of scripting your own metric with this tool so that might be another possibility.
Thanks Todd... I ve gone throu the paper already. Really it gives a lot of info. The tool QMOOD++ stated by Bansiya in that paper is not available. I need either that tool or a similar tool to measure the metrics stated by Bansiya. Anyway of getting that?