// In header: <boost/log/attributes/current_thread_id.hpp>

class current_thread_id : public attribute {
public:
  // types
  typedef thread_id value_type;  // A held attribute value type. 
  // member classes/structs/unions
  // Factory implementation.
  class impl : public attribute_value::impl {
  public:
    // public member functions
    virtual bool dispatch(type_dispatcher &);
    virtual intrusive_ptr< attribute_value::impl > detach_from_thread();
    virtual typeindex::type_index get_type() const;
  };
  // construct/copy/destruct
  current_thread_id();
  explicit current_thread_id(cast_source const &);
};