# std::future<T>::~future

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< cpp‎ | thread‎ | future

~future(); |  | (since C++11)

Releases any shared state. This means:

- If the current object holds the last reference to its shared state, the shared state is destroyed.
- The current object gives up its reference to its shared state.

- These actions will not block for the shared state to become ready, except that they may block if all following conditions are satisfied:
  - The shared state was created by a call to std::async.
  - The shared state is not yet ready.
  - The current object was the last reference to the shared state.

(since C++14)

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