title: Why would you use 'extern "C++"'?
body: <p>In this <a href="http://msdn.microsoft.com/en-us/library/0603949d(VS.80).aspx" rel="noreferrer">article</a> the keyword extern can be followed by "C" or "C++".  Why would you use 'extern "C++"'?  Is it practical?</p>