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Struct template shift_left

boost::proto::shift_left — A metafunction for generating left-shift expression types, a grammar element for matching left-shift expressions, and a PrimitiveTransform that dispatches to the proto::pass_through<> transform.


template<typename T, typename U> 
struct shift_left :  proto::transform< shift_left<T, U> > {
  // types
  typedef proto::expr< proto::tag::shift_left, proto::list2< T, U > > type;           
  typedef type                                                        proto_base_expr;
  template<typename Expr, typename State, typename Data> 
  struct impl :
     proto::pass_through<shift_left>::template impl<Expr, State, Data>