| std::unique_ptr< _Tp, _Dp >(3cxx) | std::unique_ptr< _Tp, _Dp >(3cxx) |
std::unique_ptr< _Tp, _Dp > - A move-only smart pointer that manages unique ownership of a resource.
#include <memory>
using deleter_type = _Dp
using element_type = _Tp
using pointer = typename __uniq_ptr_impl< _Tp,
_Dp >::pointer
template<typename _Del = _Dp, typename =
_DeleterConstraint<_Del>> constexpr unique_ptr () noexcept
Default constructor, creates a unique_ptr that owns nothing.
template<typename _Up , typename = _Require<
is_convertible<_Up*, _Tp*>, is_same<_Dp,
default_delete<_Tp>>>> unique_ptr (auto_ptr<
_Up > &&__u) noexcept
Converting constructor from auto_ptr. unique_ptr (const
unique_ptr &)=delete
template<typename _Del = _Dp, typename =
_DeleterConstraint<_Del>> constexpr unique_ptr (nullptr_t)
noexcept
Creates a unique_ptr that owns nothing. template<typename
_Del = _Dp, typename = _DeleterConstraint<_Del>>
constexpr unique_ptr (pointer __p) noexcept
template<typename _Del = deleter_type, typename =
_Require<is_move_constructible<_Del>>> constexpr
unique_ptr (pointer __p,
__enable_if_t<!is_lvalue_reference< _Del
>::value, _Del && > __d) noexcept
template<typename _Del = deleter_type, typename =
_Require<is_copy_constructible<_Del>>> constexpr
unique_ptr (pointer __p, const deleter_type &__d) noexcept
template<typename _Del = deleter_type, typename
_DelUnref = typename remove_reference<_Del>::type> constexpr
unique_ptr (pointer, __enable_if_t<
is_lvalue_reference< _Del >::value, _DelUnref
&& >)=delete
unique_ptr (unique_ptr &&)=default
Move constructor. template<typename _Up , typename _Ep
, typename = _Require< __safe_conversion_up<_Up, _Ep>,
__conditional_t<is_reference<_Dp>::value, is_same<_Ep,
_Dp>, is_convertible<_Ep, _Dp>>>> constexpr
unique_ptr (unique_ptr< _Up, _Ep >
&&__u) noexcept
Converting constructor from another type. ~unique_ptr () noexcept
Destructor, invokes the deleter if the stored pointer is not null. constexpr
pointer get () const noexcept
Return the stored pointer. constexpr const deleter_type &
get_deleter () const noexcept
Return a reference to the stored deleter. constexpr deleter_type &
get_deleter () noexcept
Return a reference to the stored deleter. constexpr operator bool ()
const noexcept
Return true if the stored pointer is not null. constexpr
add_lvalue_reference< element_type >::type operator* ()
const noexcept(noexcept(*std::declval< pointer >()))
Dereference the stored pointer. constexpr pointer operator-> ()
const noexcept
Return the stored pointer. unique_ptr & operator= (const
unique_ptr &)=delete
constexpr unique_ptr & operator= (nullptr_t) noexcept
Reset the unique_ptr to empty, invoking the deleter if necessary.
unique_ptr & operator= (unique_ptr
&&)=default
Move assignment operator. template<typename _Up , typename
_Ep > constexpr enable_if< __and_<
__safe_conversion_up< _Up, _Ep >,
is_assignable< deleter_type &, _Ep &&
> >::value, unique_ptr & >::type operator=
(unique_ptr< _Up, _Ep > &&__u) noexcept
Assignment from another type. constexpr pointer release () noexcept
Release ownership of any stored pointer. constexpr void reset
(pointer __p=pointer()) noexcept
Replace the stored pointer. constexpr void swap
(unique_ptr &__u) noexcept
Exchange the pointer and deleter with another object.
(Note that these are not member symbols.)
template<typename _Tp , typename... _Args> constexpr
__detail::__unique_ptr_t< _Tp > make_unique (_Args
&&... __args)
template<typename _Tp , typename... _Args>
__detail::__invalid_make_unique_t< _Tp > make_unique
(_Args &&...)=delete
template<typename _Tp > constexpr
__detail::__unique_ptr_array_t< _Tp > make_unique (size_t
__num)
template<typename _Tp > constexpr __detail::__unique_ptr_t<
_Tp > make_unique_for_overwrite ()
template<typename _Tp , typename... _Args>
__detail::__invalid_make_unique_t< _Tp >
make_unique_for_overwrite (_Args &&...)=delete
template<typename _Tp > constexpr
__detail::__unique_ptr_array_t< _Tp > make_unique_for_overwrite
(size_t __num)
template<typename _CharT , typename _Traits , typename
_Tp , typename _Dp > basic_ostream< _CharT,
_Traits > & operator<< (basic_ostream< _CharT,
_Traits > &__os, const unique_ptr< _Tp, _Dp
> &__p)
Stream output operator for unique_ptr. template<typename _Tp ,
typename _Dp > constexpr enable_if<
__is_swappable< _Dp >::value >::type swap
(unique_ptr< _Tp, _Dp > &__x, unique_ptr<
_Tp, _Dp > &__y) noexcept
class std::unique_ptr< _Tp, _Dp >"A move-only smart pointer that manages unique ownership of a resource.
Since
Default constructor, creates a unique_ptr that owns nothing.
Takes ownership of a pointer.
Parameters
The deleter will be value-initialized.
Takes ownership of a pointer.
Parameters
The deleter will be initialized with __d
Takes ownership of a pointer.
Parameters
The deleter will be initialized with std::move(__d)
Creates a unique_ptr that owns nothing.
Move constructor.
Converting constructor from another type. Requires that the pointer owned by __u is convertible to the type of pointer owned by this object, __u does not own an array, and __u has a compatible deleter type.
Converting constructor from auto_ptr.
Destructor, invokes the deleter if the stored pointer is not null.
References std::unique_ptr< _Tp, _Dp >::get_deleter(), and std::move().
Return the stored pointer.
Referenced by std::unique_ptr< _Tp, _Dp >::operator bool(), std::unique_ptr< _Tp[], _Dp >::operator bool(), std::unique_ptr< _Tp, _Dp >::operator*(), std::unique_ptr< _Tp, _Dp >::operator->(), and std::unique_ptr< _Tp[], _Dp >::operator[]().
Return a reference to the stored deleter.
Return a reference to the stored deleter.
Referenced by std::unique_ptr< _Tp[], _Dp >::~unique_ptr(), std::unique_ptr< _Tp, _Dp >::~unique_ptr(), std::unique_ptr< _Tp, _Dp >::operator=(), and std::unique_ptr< _Tp[], _Dp >::operator=().
Return true if the stored pointer is not null.
References std::unique_ptr< _Tp, _Dp >::get().
Dereference the stored pointer.
References std::unique_ptr< _Tp, _Dp >::get().
Return the stored pointer.
References std::unique_ptr< _Tp, _Dp >::get().
Reset the unique_ptr to empty, invoking the deleter if necessary.
References std::unique_ptr< _Tp, _Dp >::reset().
Move assignment operator. Invokes the deleter if this object owns a pointer.
Assignment from another type.
Parameters
Invokes the deleter if this object owns a pointer.
References std::unique_ptr< _Tp, _Dp >::get_deleter(), and std::unique_ptr< _Tp, _Dp >::reset().
Release ownership of any stored pointer.
Replace the stored pointer.
Parameters
The deleter will be invoked if a pointer is already owned.
References std::move().
Referenced by std::unique_ptr< _Tp, _Dp >::operator=(), std::unique_ptr< _Tp[], _Dp >::operator=(), std::unique_ptr< _Tp, _Dp >::operator=(), and std::unique_ptr< _Tp[], _Dp >::operator=().
Exchange the pointer and deleter with another object.
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