An asynchronous operation (created via std::async,. Boxed futures only implement the future trait when the future inside the box implements unpin Constructs a std::future with the shared state of other using move semantics
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Valid ( ) == false
3) std::future is not copyconstructible.
In this case it does work In general, it probably doesn't I'm wondering how this break in backwards compatibility should in general be navigated The get member function waits (by calling wait()) until the shared state is ready, then retrieves the value stored in the shared state (if any).
A future statement is a directive to the compiler that a particular module should be compiled using syntax or semantics that will be available in a specified future release of. In future builder, it calls the future function to wait for the result, and as soon as it produces the result it calls the builder function where we build the widget Constructs a future object from the shared state referred to by other, if any Valid == false prior to this call, the constructed future object is empty
If the future is the result of a call to std::async that used lazy evaluation, this function returns immediately without waiting
This function may block for longer than.
