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boost::program_options::typed_value_base
// In header: <boost/program_options/value_semantic.hpp> class typed_value_base { public: // construct/copy/destruct ~(); // public member functions () ; };
Base class for all option that have a fixed type, and are willing to announce this type to the outside world. Any 'value_semantics' for which you want to find out the type can be dynamic_cast-ed to typed_value_base. If conversion succeeds, the 'type' method can be called.