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std::swap(std::promise)

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Defined in header <future>
template< class R >
void swap( promise<R> &lhs, promise<R> &rhs );
(since C++11)

Specializes the std::swap algorithm for std::promise. Exchanges the shared state of lhs with that of rhs. Effectively calls lhs.swap(rhs).

Contents

[edit] Parameters

lhs, rhs - promises whose states to swap

[edit] Return value

(none)

[edit] Exceptions

noexcept specification:  
noexcept
  

[edit] Example

[edit] See also

swaps two promise objects
(public member function) [edit]