Callback virtual function from C++ to Go / Swig

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Callback virtual function from C++ to Go / Swig

Larry Bisel
I am trying to use SWIG to interface some Go code to a library that is written in C++.  The C++ library has a virtual callback function in a class:

class AbstractClass {
    virtual ~AbstractClass() {};
    virtual void AbstractCallback(Arg *arg) {}

I am using Go 1.7.4 and SWIG 3.0.10.  I want the C++ library to make a callback to my Go code.  I have tried to model my code after the example in Section 23.4.7 in the SWIG-3.0 Documentation, but I have not been able to get this to work.  I think my code is crashing the C++ library when the C++ library tries to make the callback, but I'm not exactly sure about that.  Do you have any additional pointers or ideas on how to debug this?



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