[C++-sig] passing pointers from python

hitesh dhiman hitesh.dhiman.1988 at gmail.com
Thu Mar 18 04:39:44 CET 2010

Hi all,
i'm trying to wrap c++ functions that have pointer variables. The test
example i'm using is shown below:
int World::addition(int* a, int* b)
int z = *a + *b;
return z;

Now, i defined it in my wrapper as :
.def("addition", &World::addition)

My code compiles, but when I try to execute it from python, i get this
Python Argument types in World.Addition(World, int, int) did not match C++
signature: addition(class World {lvalue}, int* , int*)

The problem is, how to get hold of a pointer in python? Or is there a
workaround to define the function differently in the wrapper file?

Hitesh Dhiman
Electrical Engineering
National University of Singapore
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