std::shared_ptr::operator=
| shared_ptr& operator=( const shared_ptr& r );
|
(1) | |
| template< class Y >
shared_ptr& operator=( const shared_ptr<Y>& r ); |
(1) | |
| shared_ptr& operator=( shared_ptr&& r );
|
(2) | |
| template< class Y >
shared_ptr& operator=( shared_ptr<Y>&& r ); |
(2) | |
| template< class Y >
shared_ptr& operator=( std::auto_ptr<Y>&& r ); |
(3) | |
| template< class Y, class Deleter >
shared_ptr& operator=( std::unique_ptr<Y,Deleter>&& r ); |
(4) | |
Replaces the managed object with the one managed by r.
1) Shares ownership of the object managed by r. If r manages no object, *this manages no object too. The templated overload doesn't participate in the overload resolution if Y* is not implicitly convertible to T*. Equivalent to shared_ptr<T> p(r).swap(*this).
2) Move-assigns a shared_ptr from r. After the assignment, *this contains a copy of the previous state of r, r is empty. The templated overload doesn't participate in the overload resolution if Y* is not implicitly convertible to T*. Equivalent to shared_ptr<T> p(std::move(r)).swap(*this).
3) Transfers the ownership of the object managed by r to *this. If r manages no object, *this manages no object too. After the assignment, *this contains the pointer previously held by r, and use_count()==1; also r is empty. Equivalent to shared_ptr<T> p(r).swap(*this).
4) Transfers the ownership of the object managed by r to *this. The deleter associated to r is stored for future deletion of the managed object. r manages no object after the call. Equivalent to shared_ptr<T> p(std::move(r)).swap(*this).
Contents |
[edit] Parameters
| r | - | another smart pointer to share the ownership to or acquire the ownership from |
[edit] Return value
*this
[edit] Notes
The implementation may meet the requirements without creating a temporary shared_ptr object.
[edit] Exceptions
1-2)3) (none)
4-5)[edit] Example
| This section is incomplete Reason: no example |
[edit] See also
| replaces the managed object (public member function) |