another corner case (fixes #151)

b90e68de · Wenzel Jakob · 08927e98 · b90e68de
Commit b90e68de authored Mar 27, 2016 by Wenzel Jakob
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include/pybind11/cast.h include/pybind11/cast.h +2 -1

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--- a/include/pybind11/cast.h
+++ b/include/pybind11/cast.h
@@ -356,7 +356,8 @@ public:
            return handle(Py_None).inc_ref();
    }
-    operator void *() { return value; }
+    template <typename T> using cast_op_type = void*&;
+    operator void *&() { return value; }
 private:
    void *value = nullptr;
 };