std::promise<R>::promise
From cppreference.com
promise(); |
(1) | (since C++11) |
template< class Alloc > promise( std::allocator_arg_t, const Alloc& alloc ); |
(2) | (since C++11) |
promise( promise&& other ) noexcept; |
(3) | (since C++11) |
promise( const promise& other ) = delete; |
(4) | (since C++11) |
Constructs a promise
object.
1) Default constructor. Constructs the promise with an empty shared state.
2) Constructs the promise with an empty shared state. The shared state is allocated using alloc.
Alloc
must meet the requirements of Allocator.3) Move constructor. Constructs the promise with the shared state of other using move semantics. After construction, other has no shared state.
4)
promise
is not copyable.[edit] Parameters
alloc | - | allocator to use to allocate the shared state |
other | - | another promise to acquire the state from
|
[edit] Exceptions
1,2) May throw implementation-defined exceptions.
[edit] Example
This section is incomplete Reason: no example |