std::auto_ptr::operator auto_ptr<Y>
From cppreference.com
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 from this template. The implementation is allowed to provide the template with a different name or implement equivalent functionality in other ways.
Parameters
(none)
Return value
1) An implementation-defined type that holds a reference to *this
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 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.