[Developers] Overlap between f1b2v10.cpp and f1b2vc10.cpp

[Hans J. Skaug]

Developers,

I am trying to add some overloaded versions of pow(), and discover
that the files f1b2v10.cpp and f1b2vc10.cpp contain a lot of overlapping
material (functions). Further, both files are are contained in
"objects.lst" which means they are both build and included in the libraries. 

I thought multiple definitions of a function was not allowed in C++,
so how can this be possible?

Even though it seems to work, is it desirable to have multiple definitions
like this in our trunk?

Hans