Tests and fixes for a bad interaction between wrapper<> and operators

support.  "self" arguments weren't getting unwrapped properly.


[SVN r35365]

test/operators_wrapper.cpp

@@ -0,0 +1,42 @@
+#include "boost/python.hpp"
+#include <memory>
+
+struct vector
+{
+    virtual ~vector() {}
+    
+    vector operator+( const vector& x ) const
+    { return vector(); }
+
+    vector& operator+=( const vector& x )
+    { return *this; }
+    
+    vector operator-() const
+    { return *this; }
+};
+
+struct dvector : vector
+{};
+
+using namespace boost::python;
+
+struct vector_wrapper
+  : vector, wrapper< vector >
+{
+    vector_wrapper(vector const&) {}
+    vector_wrapper() {}
+};
+
+BOOST_PYTHON_MODULE( operators_wrapper_ext )
+{
+    class_< vector_wrapper >( "vector" )
+        .def( self + self )
+        .def( self += self )
+        .def( -self )
+        ;
+    
+    scope().attr("v") = vector();
+    std::auto_ptr<vector> dp(new dvector);
+    register_ptr_to_python< std::auto_ptr<vector> >();
+    scope().attr("d") = dp;
+}