[Swig-user] class complex in python

[david r. m. <dav...@gm...>]

Hi Nitro.

I have a new problem  in my code swig.
I have a function in C++ and have values complex ( complex<double> * )
complex is a class of C++ (include<complex>).
When I create my wrapper I have a problem overload function


My cuestion is:Is possible solve my problem?


I create a Typemap but doesn't solve anything

Is possible that I call the function from python, i call bad?

example:

/**********************my swigexample .h*******************************/
using namespace std;

#include <iostream>
#include <fstream>
#include <complex>
#include <cstdlib>
#include <cstdio>
#include <string>

void RealImag2Complex(const int _real,
                      const int _imag,
                      complex< double >* _complex,
                      int length)
{
    int aux_real = (int) _real;
    int aux_imag = (int) _imag;
    std::cout<<*_complex<<std::endl;
}

/*****************my swigexample .i*************************/

%module swigexample
%include cpointer.i
%include std_complex.i
%pointer_class(double,doubleP);

%{

#include "swigexample.h"
#include <complex>

%}



%typemap(python,in) complex <double> *
{
  if (!PyList_Check($input))
        {
          PyErr_SetString(PyExc_TypeError, "expected a list");
          return NULL;
        };

  int arrsize = PyList_Size($input);

  $1 = new complex <double> [arrsize];
  for (int i=0; i<arrsize; i++)
  {
     PyObject *item = PyList_GetItem($input, i);
     if (PyComplex_Check(item))
           $1[i] = complex <double>(PyComplex_RealAsDouble(item),
                                PyComplex_ImagAsDouble(item));
     else
     {
       free ((complex <double> *) $input);
       PyErr_SetString(PyExc_TypeError, "expected complex numbers in list");
       return NULL;
     };

  }

}

%typemap (python,freearg) complex <double> *
{
    delete [] $1;
};

%typemap (python,out) complex<double> *{

    $result = PyInt_FromLong($1);
}


%include "swigexample.h"



Please I need  to konw the solution for the excepted a pointer

>>> z=complex(1+1j)
>>> swigfuncs.RealImag2Complex(2,2,z,3)
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
TypeError: No matching function for overloaded 'RealImag2Complex'

It is possible to solve it or if you have a other solution, I accept all
solutions.

Thanks for your time and sorry for my English