std::packaged_task::~packaged_task

From cppreference.com
~packaged_task()

Abandons the shared state and destroys the stored task object.

As with std::promise::~promise, if the shared state is abandoned before it was made ready, an std::future_error exception is stored with the error code std::future_errc::broken_promise).

[edit] Parameters

(none)

[edit] Example