Indentation in C++

[Mads I. <ipsen@FHI-Berlin.mpg.de>]

What should I put in my .emacs file to change the indent of the comment
lines in the c++mode?  I don't like the 8 offset and would prefer to have
comments indented similar as the code chunks that follow, i.e:


    // Foo foo foo foo foo
    for (int i=1; i <= nx; i++) {
        L = (i-1)*h;

        U(npde+1,i)    = L;
        UDot(npde+1,i) = 0.0;
    }




+---------------------------------------+--------------------------+
| Mads Ipsen                            |                          |
| Dept. of Physical Chemistry           | phone:  +49-30-8413 5302 |
| Fritz-Haber-Institut der MPG          | fax:    +49-30-8413 5106 |
| Faradayweg 4-6, 14195 Berlin, Germany | ip...@fh...  |
+---------------------------------------+--------------------------+