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%module cpp_shared_ptr %include <boost_shared_ptr.i> %shared_ptr(B); %shared_ptr(C); %inline %{ #include <stdio.h> #include <boost/shared_ptr.hpp> struct A { virtual ~A() {} }; struct B { virtual ~B() {} }; struct C : B, A { virtual ~C() {} }; struct D : C { virtual ~D() {} }; %}