Docs4dev
Docs
cpp / latest / thread / future / future.html

std::future<T>::future

future() noexcept;
 (1) (since C++11) 
future( future&& other ) noexcept;
 (2) (since C++11) 
future( const future& other ) = delete;
 (3) (since C++11)

Constructs a std::future object.

1) Default constructor. Constructs a std::future with no shared state. After construction, valid() == false.
2) Move constructor. Constructs a std::future with the shared state of other using move semantics. After construction, other.valid() == false.
3) std::future is not CopyConstructible.

Parameters

other - another std::future to acquire shared state from

© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
https://en.cppreference.com/w/cpp/thread/future/future