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std::weak_ptr::operator=

weak_ptr& operator=( const weak_ptr& r );
(1) (since C++11)
template< class Y > 
weak_ptr& operator=( const weak_ptr<Y>& r );
(2) (since C++11)
template< class Y > 
weak_ptr& operator=( const shared_ptr<Y>& r );
(3) (since C++11)
weak_ptr& operator=( weak_ptr&& r );
(4) (since C++14)
template< class Y > 
weak_ptr& operator=( weak_ptr<Y>&& r );
(5) (since C++14)

Replaces the managed object with the one managed by r. The object is shared with r. If r manages no object, *this manages no object too.

1-3) Equivalent to std::weak_ptr<T>(r).swap(*this).
4,5) Equivalent to std::weak_ptr<T>(std::move(r)).swap(*this).

Parameters

r - smart pointer to share an object with

Return value

*this.

Exceptions

noexcept specification:
noexcept

Notes

The implementation may meet the requirements without creating a temporary weak_ptr object.

See also

creates a new weak_ptr
(public member function)
swaps the managed objects
(public member function)

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