Function CreateVectorInterface

kratos/python/add_vector_to_python.cpp:32–184

template< typename TVectorType > 
py::class_< TVectorType > CreateVectorInterface(pybind11::module& m, std::string Name )
{
    py::class_< TVectorType, std::shared_ptr<TVectorType> > binder(m,Name.c_str(), py::buffer_protocol());
    binder.def(py::init<>());
    binder.def(py::init<const TVectorType&>());

    //binder.def(py::init<std::TVectorType& >())
    binder.def("Size", [](const TVectorType& self)
    {
        return self.size();
    } );
    binder.def("Resize", [](TVectorType& self, const typename TVectorType::size_type  new_size)
    {
        if(self.size() != new_size) self.resize(new_size, false);
    } );
    binder.def("__len__", [](const TVectorType& self)
    {
        return self.size();
    } );

    //operating on the object itself, +=, -=, *=, etc
    binder.def("__iadd__", [](TVectorType& self, const typename TVectorType::value_type scalar)
    {
        for(unsigned int i=0; i<self.size(); ++i) self[i]+=scalar;
        return self;
    }, py::is_operator());
    binder.def("__isub__", [](TVectorType& self, const typename TVectorType::value_type scalar)
    {
        for(unsigned int i=0; i<self.size(); ++i) self[i]-=scalar;
        return self;
    }, py::is_operator());
    binder.def("__imul__", [](TVectorType& self, const typename TVectorType::value_type scalar)
    {
        for(unsigned int i=0; i<self.size(); ++i) self[i]*=scalar;
        return self;
    }, py::is_operator());
    binder.def("__itruediv__", [](TVectorType& self, const typename TVectorType::value_type scalar)
    {
        for(unsigned int i=0; i<self.size(); ++i) self[i]/=scalar;
        return self;
    }, py::is_operator());

    binder.def("__iadd__", [](TVectorType& self, const TVectorType& other_vec)
    {
        noalias(self) += other_vec;
        return self;
    }, py::is_operator());
    binder.def("__isub__", [](TVectorType& self, const TVectorType& other_vec)
    {
        noalias(self) -= other_vec;
        return self;
    }, py::is_operator());

    //returning a different object
//         binder.def("__add__", [](TVectorType vec1, const double scalar){for(unsigned int i=0; i<vec1.size(); ++i) vec1[i]+=scalar; return vec1;}, py::is_operator());
//         binder.def("__sub__", [](TVectorType vec1, const double scalar){for(unsigned int i=0; i<vec1.size(); ++i) vec1[i]-=scalar; return vec1;}, py::is_operator());
    binder.def("__mul__", [](TVectorType vec1, const typename TVectorType::value_type scalar)
    {