std::promise<R>::set_exception_at_thread_exit
void set_exception_at_thread_exit( std::exception_ptr p ); |
(since C++11) | |
Stores the exception pointer p
into the shared state without making the state ready immediately. The state is made ready when the current thread exits, after all variables with thread-local storage duration have been destroyed.
The operation behaves as though set_value, set_exception, set_value_at_thread_exit, and set_exception_at_thread_exit
acquire a single mutex associated with the promise object while updating the promise object.
An exception is thrown if there is no shared state or the shared state already stores a value or exception.
Calls to this function do not introduce data races with calls to get_future (but they need not synchronize with each other).
Parameters
p | - | exception pointer to store. The behavior is undefined if p is null.
|
Return value
(none)
Exceptions
std::future_error on the following conditions:
- *this has no shared state. The error category is set to no_state.
- The shared state already stores a value or exception. The error category is set to promise_already_satisfied.
Example
This section is incomplete Reason: no example |
See also
sets the result to indicate an exception (public member function) |