42     bool issubscribed;  member in syncwithvoid::sync_subscriber
45         , issubscribed(true)  in sync_subscriber()
48     bool is_subscribed() {return issubscribed;}  in is_subscribed()
49     void unsubscribe() {issubscribed = false;}  in unsubscribe()
103     bool issubscribed;  member in asyncwithready::async_subscriber
107         , issubscribed(true)  in async_subscriber()
111     bool is_subscribed() {return issubscribed;}  in is_subscribed()
112     void unsubscribe() {issubscribed = false;}  in unsubscribe()
180     bool issubscribed;  member in asyncwithfuture::async_subscriber
183         , issubscribed(true)  in async_subscriber()
186     bool is_subscribed() {return issubscribed;}  in is_subscribed()
187     void unsubscribe() {issubscribed = false;}  in unsubscribe()