std::auto_ptr::operator=

C++

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std::auto_ptr

Member functions

auto_ptr::auto_ptr

auto_ptr::~auto_ptr

auto_ptr::operator=

auto_ptr::operator*auto_ptr::operator->

auto_ptr::get

auto_ptr::release

auto_ptr::reset

auto_ptr::operator auto_ptr<Y>auto_ptr::operator auto_ptr_ref<Y>

auto_ptr& operator=( auto_ptr& r );	(1)	(deprecated)
template< class Y > auto_ptr& operator=( auto_ptr<Y>& r );	(2)	(deprecated)
auto_ptr& operator=( auto_ptr_ref m );	(3)	(deprecated)

Replaces the managed object with the one managed by r.

1) Effectively calls reset(r.release()).

2) Effectively calls reset(r.release()). Y* must be implicitly convertible to T*.

3) Effectively calls reset(m.release()). auto_ptr_ref is an implementation-defined type that holds a reference to auto_ptr. std::auto_ptr is implicitly convertible to and from this type. The implementation is allowed to provide the template with a different name or implement equivalent functionality in other ways.

Parameters

r	-	another auto_ptr to transfer the ownership of the object from
m	-	an implementation-defined type that holds a reference to auto_ptr

Return value

*this.

Exceptions

(none)

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.