#include <iostream>
#include <cstdio>
#include <cstdlib>

#include <pybind11/pybind11.h>

void functionInPython(void){
  std::cout << "call functionInCPP\n";
}

class ClassInCpp {

public:

  ClassInCpp(void) : varInClassInCpp("varInClassInCpp"){ }

  std::string varInClassInCpp ;

  void functionClassInCpp(void){
    std::cout << "call functionClassInCpp\n";
  }

  template <typename TT1>
  TT1 templateFunctionInCpp(TT1 x){
    std::cout << "call templateFunctionInCpp -arg= " << x << "\n";

    return x * x;

  }

};

PYBIND11_MODULE(examplePybind11, m) {

  m.def("functionInPython", &functionInPython);

  pybind11::class_<ClassInCpp>(m, "classInPython")
    .def(pybind11::init<>())
    .def_readwrite("varInPython", &ClassInCpp::varInClassInCpp)
    .def("functionClassInPython", &ClassInCpp::functionClassInCpp)

    // template function
    .def("templateFunctionInPython",
         (uint64_t (ClassInCpp::*)(uint64_t)) &ClassInCpp::templateFunctionInCpp)
    .def("templateFunctionInPython",
         (float (ClassInCpp::*)(float )) &ClassInCpp::templateFunctionInCpp);
}