Nullify the user-object pointer during smart-pointer construction #40
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The smart_pointer_t constructor now nullifies the user_object_t pointer dummy argument in order to discourage the use of unencapsulated pointers because unencapsulated there's no automated reference-count tracking with unencapsulated pointers.
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user_object_ptr_tconstructor now nullifies theuser_objectpointerdummy argument in order to discourage the use of unencapsulated pointers because there's no automated reference-count tracking for unencapsulated pointers.