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Struct _state

boost::proto::_state — A PrimitiveTransform that returns the current state unmodified.

Synopsis

// In header: <boost/proto/transform/arg.hpp>


struct _state :  proto::transform<  {
  // member classes/structs/unions
  template<typename Expr, typename State, typename Data> 
  struct impl :  proto::transform_impl<  {
    // types
    typedef  ;

    // public member functions
     (, , 
                     ) ;
  };
};

Description

Example:

proto::terminal<


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