|  | 
A cancellation state is used for chaining signals and slots in compositions.
class cancellation_state
| Name | Description | 
|---|---|
| cancellation_state [constructor] | 
                  Construct a disconnected cancellation state.  | 
| Returns the cancellation types that have been triggered. | |
| Clears the specified cancellation types, if they have been triggered. | |
| Returns the single child slot associated with the state. | 
        Header: asio/cancellation_state.hpp
      
        Convenience header: asio.hpp