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#include <string>

#include <iostream>

#include <boost/python.hpp>

using namespace boost::python;

struct Base

{

Base() { std::cout << "Default constructor of Base" << std::endl; }

float get_val() { std::cout << "get_val from Base" << std::endl; return 10.0; }

virtual ~Base() { std::cout << "Destructor of Base" << std::endl; }

};

struct Derived : Base

{

Derived() { std::cout << "Deault constructor of Derived" << std::endl; }

virtual ~Derived() override { std::cout << "Destructor of Derived" << std::endl; }

};

void b(Base *)

{

std::cout << "Function b(Base *)" << std::endl;

}

void d(Derived *)

{

std::cout << "Function d(Derived *)" << std::endl;

}

Base* factory()

{

return new Derived;

}

BOOST_PYTHON_MODULE(inheritance)

{

class_<Base>("Base")

.def("get_val", &Base::get_val);

class_<Derived, bases<Base> >("Derived");

def("b", b);

def("d", d);

def("factory", factory, return_value_policy<manage_new_object>());

}