std::weak_ptr::operator=

 

C++

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Low level memory management

 

std::weak_ptr

Member functions

weak_ptr::weak_ptr

weak_ptr::~weak_ptr

weak_ptr::operator=

Modifiers

weak_ptr::reset

weak_ptr::swap

Observers

weak_ptr::use_count

weak_ptr::expired

weak_ptr::lock

weak_ptr::owner_before

Non-member functions

std::swap

 

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)

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. Equivalent to weak_ptr<T>(r).swap(*this).

Parameters

r

-

smart pointer to share an object with

Return value

*this

Exceptions

noexcept specification:  

noexcept

  (since C++11)

Notes

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