Segmentation fault when using boost::numpy::ndarray

Question

I am getting what I think is a strange seg fault when I am trying to pass boost::numpy::ndarray as an argument:

#include 
#include &         


        

Answer 1

I knew it was something simple. I needed to add these two lines:

Py_Initialize();
boost::numpy::initialize();

as explained : here seg fault results after any attempt to use boost::numpy::ndarray if the above lines are not ran.

Therefore: my file becomes:

#include <iostream>
#include <boost/python.hpp>
#include <boost/numpy.hpp>


void say_hello(boost::numpy::ndarray& my_array)
//void say_hello(int x) This works fine
{
  std::cout<<"Hello"<<std::endl;
}

BOOST_PYTHON_MODULE(hello_ext)
{
    using namespace boost::python;
    Py_Initialize();
    boost::numpy::initialize();
    def("say_hello", say_hello);
}