C++ virtual function calls

I was writing some C++, and in the middle of a tight loop, had
something like:


Base *foo = ...;


for (...) {
        foo->virtual_method(...);
}


Are compilers smart enough to lift the virtual lookup out of the loop?
Is this commonly done? It seems like an easy optimization, but I'm
not sure if I'm missing something, or if compiler writers are still
too busy implementing partially specialized virtual template functions
that throw templated exception classes based on RTTI info.


--
Tim Hollebeek
PChem Grad Student
Princeton Univ.
-------------------| tim@handel.princeton.edu http://wagner.princeton.edu/~tim
--

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