[C++-sig] iterator interface question

[Neal D. Becker]

How to I interface algorithms with STL style iterator interface to python?


For example:

typedef std::complex<double> Complex;
//expose std::vector<Complex> to python:

//also let's pick a simple example function:

inline Complex Sum (const std::vector<Complex>::iterator& beg, const std::vector<Complex>::iterator& end) {
  Complex sum = 0;
  return std::accumulate (beg, end, sum);
}

BOOST_PYTHON_MODULE(Test)
{    
    class_<std::vector<std::complex<double> > >("CVec")
      .def(init<size_t>())
      .def(vector_indexing_suite<std::vector<std::complex<double> >, true >())
    ;

    def ("accumulate", Sum);
}

Actually 2 questions:

1) How do I call accumulate from python?

2) (really a c++ question) How can I avoid introducing the "Sum" function?  If I put

def ("accumulate", std::accumulate<const std::vector<Complex>::iterator&,  Complex>)

I get
Test.cc:115: error: no matching function for call to `def(const char[11], 
   <unknown type>)'

Problem is it's overloaded, I guess, but I don't know what to do.