# std::experimental::promise

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< cpp‎ | experimental

`std::experimental::promise` may refer to:

- `std::experimental::fundamentals_v1::promise` or `std::experimental::fundamentals_v2::promise`, a modified version of std::promise provided by the library fundamentals TS with support for type-erased allocators;
- `std::experimental::concurrency_v1::promise`, a modified version of `std::promise` provided by the concurrency TS whose `get_future()` member function returns the improved `std::experimental::future` provided by that TS.

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