std::promise::operator=
From cppreference.com
promise& operator=( promise&& other );
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(1) | (since C++11) |
promise& operator=( const promise& rhs ) = delete;
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(2) | (since C++11) |
Assigns the contents.
1) Move assignment operator. First, abandons the shared state (as in ~promise()), then assigns the shared state of
other
as if by executing std::promise(std::move(other)).swap(*this).
2)
promise
is not copy-assignable.[edit] Parameters
other | - | another promise to acquire the state from
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[edit] Return value
*this
[edit] Exceptions
1)
noexcept specification:
noexcept