[C++-sig] Re: iterator interface question (progress!)

[Neal D. Becker]

I have made some progress, I am really impressed with boost python capabilities!

  typedef std::vector<double>::iterator vd_it;

  class_<vd_it>("DVecIter")
    ;

  class_<std::vector<double> >("DVec")
    .def(init<size_t>())
    .def(vector_indexing_suite<std::vector<double> >())
    .def("begin", (vd_it (std::vector<double>::*)())(&std::vector<double>::begin))
    .def("end", (vd_it (std::vector<double>::*)())(&std::vector<double>::end))
    ;

  typedef std::vector<Complex>::iterator vc_it;

  class_<vc_it>("CVecIter")
    ;

  class_<std::vector<Complex> >("CVec")
    .def(init<size_t>())
    .def(vector_indexing_suite<std::vector<Complex>, true >())
    .def("begin", (vc_it (std::vector<Complex>::*)())(&std::vector<Complex>::begin))
    .def("end", (vc_it (std::vector<Complex>::*)())(&std::vector<Complex>::end))
    ;
    [...]

Just with this, my main goal is accomplished:

>>> from Test import *
>>> a = DVec (2)

>>> for x in range (0, len (a)): a[x] = x
>>> PrintV (a.begin(), a.end())
0
1
(where PrintV is a C++ function taking a pair of std::vector<double> iterators)

Now to see if I can teach python more tricks to do with DVecIter (e.g., arithmetic)