Array allocation

Hello All,

I have the following getData function in a DLL that allocates memory and fill its contents.

extern "C" __declspec(dllexport) int getData(int *data) {
int size = 20;
               data = (int*) malloc(size*sizeof(int)); 

for (int i = 0; i < size; i++) {
data[i] = i*i;
}

return size;
}


I have the following Python code to call the getData function:

       mydll = ctypes.cdll.LoadLibrary('MathFuncs.dll')

       mydll.getData.argtypes = [ctypes.POINTER(ctypes.c_int)]
       mydll.getData.restype  = ctypes.c_int

       data = ctypes.POINTER(ctypes.c_int)

       size = mydll.getData(ctypes.POINTER(data))


When I execute, I get the following error:
ctypes.ArgumentError: argument 1: <type 'exceptions.TypeError'>: expected LP_c_long instance instead of _ctypes.PyCPointerType

I am not able to figure out the mistake. Could someone please correct me.

Thanks
Kotesh

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