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Struct template impl

boost::proto::_state::impl

Synopsis

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


template<typename Expr, typename State, typename Data> 
struct impl :  proto::transform_impl< Expr, State, Data > {
  // types
  typedef State result_type;

  // public member functions
  State operator()(typename impl::expr_param, typename impl::state_param, 
                   typename impl::data_param) const;
};

Description

impl public member functions

  1. State operator()(typename impl::expr_param, typename impl::state_param state, 
                     typename impl::data_param) const;

    Returns the current state.

    Parameters:

    state

    The current state.

    Returns:

    state

    Throws:

    Will not throw.

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