13 Asynchronous model [async]

13.2 Requirements [async.reqmts]

13.2.7 Requirements on asynchronous operations [async.reqmts.async]

13.2.7.13 Completion handlers and exceptions [async.reqmts.async.exceptions]

1

Completion handlers are permitted to throw exceptions. The effect of any exception propagated from the execution of a completion handler is determined by the executor which is executing the completion handler.