|  | Home | Libraries | People | FAQ | More | 
boost::proto::call — Make the given CallableTransform into a PrimitiveTransform.
// In header: <boost/proto/transform/call.hpp>
template<typename T> 
struct call :  proto::transform< call<T> > {
  // member classes/structs/unions
  template<typename Expr, typename State, typename Data> 
  struct impl :  proto::transform_impl<Expr, State, Data> {
    // types
    typedef see-below result_type;
    // public member functions
    result_type operator()(typename impl::expr_param, 
                           typename impl::state_param, 
                           typename impl::data_param) const;
  };
};
            The purpose of proto::call<> is to annotate a transform as callable
            so that proto::when<> knows
            how to apply it. The template parameter must be either a PrimitiveTransform or a
            CallableTransform; that is, a function type for which the return type is a callable
            PolymorphicFunctionObject.
          
            For the complete description of the behavior of the proto::call<>
            transform, see the documentation for the nested
            
              proto::call::impl<>
            
            class template.