std::auto_ptr<T>::operator auto_ptr<Y>

From cppreference.com
< cpp‎ | memory‎ | auto ptr
C++
Memory management library
(exposition only*)
Uninitialized memory algorithms
(C++17)
(C++17)
(C++17)
(C++17)
(C++17)
(C++11)
(C++17)
(C++17)
(C++17)
(C++17)
(C++20)
Constrained uninitialized
memory algorithms
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
C Library
Allocators
(C++11)
(C++23)
(C++11)
(C++11)
(C++20)
(C++20)
(C++20)
(C++11)
(C++17)
Memory resources
(C++17)
(C++17)
(C++17)
(C++17)
(C++17)
(C++17)
(C++17)
(C++17)
(C++17)
Garbage collection support
(C++11)(until C++23)
(C++11)(until C++23)
(C++11)(until C++23)
(C++11)(until C++23)
(C++11)(until C++23)
(C++11)(until C++23)
Uninitialized storage
(until C++20*)
(until C++20*)
(until C++20*)
Explicit lifetime management
(C++23)(C++23)
std::auto_ptr
template < class Y >
operator auto_ptr_ref<Y> ( ) throw ( ) ;
(1) (deprecated in C++11)
(removed in C++17)
template < class Y >
operator auto_ptr<Y> ( ) throw ( ) ;
(2) (deprecated in C++11)
(removed in C++17)

Converts *this to an auto_ptr for a different type Y.

1) Returns an implementation-defined type that holds a reference to *this. std::auto_ptr is convertible and assignable
2) Constructs a new auto_ptr with a pointer obtained by calling release().

Parameters

(none)

Return value

1) An implementation-defined type that holds a reference to *this.
2) An auto_ptr with a pointer obtained by calling release().

Notes

The constructor and the copy assignment operator from auto_ptr_ref is provided to allow copy-constructing and assigning std::auto_ptr from nameless temporaries. Since its copy constructor and copy assignment operator take the argument as non-const reference, they cannot bind rvalue arguments directly. However, a user-defined conversion (1) or (2) can be executed (which releases the original auto_ptr), followed by a call to the constructor or copy-assignment operator that take auto_ptr_ref by value. This is an early implementation of move semantics

Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/memory/auto_ptr/operator_auto_ptr&oldid=154307