libstdc++
std::unique_ptr< _Tp, _Dp > Class Template Reference

Public Types

template<typename _Up , typename _Ep >
using __safe_conversion_up = __and_< is_convertible< typename unique_ptr< _Up, _Ep >::pointer, pointer >, __not_< is_array< _Up > > >
 
using deleter_type = _Dp
 
using element_type = _Tp
 
using pointer = typename __uniq_ptr_impl< _Tp, _Dp >::pointer
 

Public Member Functions

template<typename _Up = _Dp, typename = _DeleterConstraint<_Up>>
constexpr unique_ptr () noexcept
 
template<typename _Up = _Dp, typename = _DeleterConstraint<_Up>>
 unique_ptr (pointer __p) noexcept
 
 unique_ptr (pointer __p, typename conditional< is_reference< deleter_type >::value, deleter_type, const deleter_type & >::type __d) noexcept
 
 unique_ptr (pointer __p, typename remove_reference< deleter_type >::type &&__d) noexcept
 
template<typename _Up = _Dp, typename = _DeleterConstraint<_Up>>
constexpr unique_ptr (nullptr_t) noexcept
 
 unique_ptr (unique_ptr &&__u) noexcept
 
template<typename _Up , typename _Ep , typename = _Require< __safe_conversion_up<_Up, _Ep>, typename conditional<is_reference<_Dp>::value, is_same<_Ep, _Dp>, is_convertible<_Ep, _Dp>>::type>>
 unique_ptr (unique_ptr< _Up, _Ep > &&__u) noexcept
 
template<typename _Up , typename >
 unique_ptr (auto_ptr< _Up > &&__u) noexcept
 
 unique_ptr (const unique_ptr &)=delete
 
 ~unique_ptr () noexcept
 
pointer get () const noexcept
 
deleter_type & get_deleter () noexcept
 
const deleter_type & get_deleter () const noexcept
 
 operator bool () const noexcept
 
add_lvalue_reference< element_type >::type operator* () const
 
pointer operator-> () const noexcept
 
unique_ptroperator= (unique_ptr &&__u) noexcept
 
template<typename _Up , typename _Ep >
enable_if< __and_< __safe_conversion_up< _Up, _Ep >, is_assignable< deleter_type &, _Ep && > >::value, unique_ptr & >::type operator= (unique_ptr< _Up, _Ep > &&__u) noexcept
 
unique_ptroperator= (nullptr_t) noexcept
 
unique_ptroperator= (const unique_ptr &)=delete
 
pointer release () noexcept
 
void reset (pointer __p=pointer()) noexcept
 
void swap (unique_ptr &__u) noexcept
 

Detailed Description

template<typename _Tp, typename _Dp = default_delete<_Tp>>
class std::unique_ptr< _Tp, _Dp >

20.7.1.2 unique_ptr for single objects.

Definition at line 168 of file unique_ptr.h.

Constructor & Destructor Documentation

◆ unique_ptr() [1/7]

template<typename _Tp, typename _Dp = default_delete<_Tp>>
template<typename _Up = _Dp, typename = _DeleterConstraint<_Up>>
constexpr std::unique_ptr< _Tp, _Dp >::unique_ptr ( )
inlinenoexcept

Default constructor, creates a unique_ptr that owns nothing.

Definition at line 194 of file unique_ptr.h.

◆ unique_ptr() [2/7]

template<typename _Tp, typename _Dp = default_delete<_Tp>>
template<typename _Up = _Dp, typename = _DeleterConstraint<_Up>>
std::unique_ptr< _Tp, _Dp >::unique_ptr ( pointer  __p)
inlineexplicitnoexcept

Takes ownership of a pointer.

Parameters
__pA pointer to an object of element_type

The deleter will be value-initialized.

Definition at line 207 of file unique_ptr.h.

◆ unique_ptr() [3/7]

template<typename _Tp, typename _Dp = default_delete<_Tp>>
std::unique_ptr< _Tp, _Dp >::unique_ptr ( pointer  __p,
typename conditional< is_reference< deleter_type >::value, deleter_type, const deleter_type & >::type  __d 
)
inlinenoexcept

Takes ownership of a pointer.

Parameters
__pA pointer to an object of element_type
__dA reference to a deleter.

The deleter will be initialized with __d

Definition at line 218 of file unique_ptr.h.

◆ unique_ptr() [4/7]

template<typename _Tp, typename _Dp = default_delete<_Tp>>
std::unique_ptr< _Tp, _Dp >::unique_ptr ( pointer  __p,
typename remove_reference< deleter_type >::type &&  __d 
)
inlinenoexcept

Takes ownership of a pointer.

Parameters
__pA pointer to an object of element_type
__dAn rvalue reference to a deleter.

The deleter will be initialized with std::move(__d)

Definition at line 230 of file unique_ptr.h.

◆ unique_ptr() [5/7]

template<typename _Tp, typename _Dp = default_delete<_Tp>>
template<typename _Up = _Dp, typename = _DeleterConstraint<_Up>>
constexpr std::unique_ptr< _Tp, _Dp >::unique_ptr ( nullptr_t  )
inlinenoexcept

Creates a unique_ptr that owns nothing.

Definition at line 239 of file unique_ptr.h.

◆ unique_ptr() [6/7]

template<typename _Tp, typename _Dp = default_delete<_Tp>>
std::unique_ptr< _Tp, _Dp >::unique_ptr ( unique_ptr< _Tp, _Dp > &&  __u)
inlinenoexcept

Move constructor.

Definition at line 244 of file unique_ptr.h.

◆ unique_ptr() [7/7]

template<typename _Tp, typename _Dp = default_delete<_Tp>>
template<typename _Up , typename _Ep , typename = _Require< __safe_conversion_up<_Up, _Ep>, typename conditional<is_reference<_Dp>::value, is_same<_Ep, _Dp>, is_convertible<_Ep, _Dp>>::type>>
std::unique_ptr< _Tp, _Dp >::unique_ptr ( unique_ptr< _Up, _Ep > &&  __u)
inlinenoexcept

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.

Definition at line 258 of file unique_ptr.h.

◆ ~unique_ptr()

template<typename _Tp, typename _Dp = default_delete<_Tp>>
std::unique_ptr< _Tp, _Dp >::~unique_ptr ( )
inlinenoexcept

Destructor, invokes the deleter if the stored pointer is not null.

Definition at line 273 of file unique_ptr.h.

Member Function Documentation

◆ get()

template<typename _Tp, typename _Dp = default_delete<_Tp>>
pointer std::unique_ptr< _Tp, _Dp >::get ( void  ) const
inlinenoexcept

◆ get_deleter() [1/2]

template<typename _Tp, typename _Dp = default_delete<_Tp>>
deleter_type& std::unique_ptr< _Tp, _Dp >::get_deleter ( )
inlinenoexcept

◆ get_deleter() [2/2]

template<typename _Tp, typename _Dp = default_delete<_Tp>>
const deleter_type& std::unique_ptr< _Tp, _Dp >::get_deleter ( ) const
inlinenoexcept

Return a reference to the stored deleter.

Definition at line 355 of file unique_ptr.h.

◆ operator bool()

template<typename _Tp, typename _Dp = default_delete<_Tp>>
std::unique_ptr< _Tp, _Dp >::operator bool ( ) const
inlineexplicitnoexcept

Return true if the stored pointer is not null.

Definition at line 359 of file unique_ptr.h.

◆ operator*()

template<typename _Tp, typename _Dp = default_delete<_Tp>>
add_lvalue_reference<element_type>::type std::unique_ptr< _Tp, _Dp >::operator* ( ) const
inline

Dereference the stored pointer.

Definition at line 329 of file unique_ptr.h.

◆ operator->()

template<typename _Tp, typename _Dp = default_delete<_Tp>>
pointer std::unique_ptr< _Tp, _Dp >::operator-> ( ) const
inlinenoexcept

Return the stored pointer.

Definition at line 337 of file unique_ptr.h.

◆ operator=() [1/3]

template<typename _Tp, typename _Dp = default_delete<_Tp>>
unique_ptr& std::unique_ptr< _Tp, _Dp >::operator= ( unique_ptr< _Tp, _Dp > &&  __u)
inlinenoexcept

Move assignment operator.

Parameters
__uThe object to transfer ownership from.

Invokes the deleter first if this object owns a pointer.

Definition at line 290 of file unique_ptr.h.

◆ operator=() [2/3]

template<typename _Tp, typename _Dp = default_delete<_Tp>>
template<typename _Up , typename _Ep >
enable_if< __and_< __safe_conversion_up<_Up, _Ep>, is_assignable<deleter_type&, _Ep&&> >::value, unique_ptr&>::type std::unique_ptr< _Tp, _Dp >::operator= ( unique_ptr< _Up, _Ep > &&  __u)
inlinenoexcept

Assignment from another type.

Parameters
__uThe object to transfer ownership from, which owns a convertible pointer to a non-array object.

Invokes the deleter first if this object owns a pointer.

Definition at line 310 of file unique_ptr.h.

◆ operator=() [3/3]

template<typename _Tp, typename _Dp = default_delete<_Tp>>
unique_ptr& std::unique_ptr< _Tp, _Dp >::operator= ( nullptr_t  )
inlinenoexcept

Reset the unique_ptr to empty, invoking the deleter if necessary.

Definition at line 319 of file unique_ptr.h.

◆ release()

template<typename _Tp, typename _Dp = default_delete<_Tp>>
pointer std::unique_ptr< _Tp, _Dp >::release ( )
inlinenoexcept

Release ownership of any stored pointer.

Definition at line 366 of file unique_ptr.h.

◆ reset()

template<typename _Tp, typename _Dp = default_delete<_Tp>>
void std::unique_ptr< _Tp, _Dp >::reset ( pointer  __p = pointer())
inlinenoexcept

Replace the stored pointer.

Parameters
__pThe new pointer to store.

The deleter will be invoked if a pointer is already owned.

Definition at line 380 of file unique_ptr.h.

Referenced by std::unique_ptr< _Result< _Res > >::operator=(), and std::unique_ptr< _Tp[], _Dp >::operator=().

◆ swap()

template<typename _Tp, typename _Dp = default_delete<_Tp>>
void std::unique_ptr< _Tp, _Dp >::swap ( unique_ptr< _Tp, _Dp > &  __u)
inlinenoexcept

Exchange the pointer and deleter with another object.

Definition at line 390 of file unique_ptr.h.

Referenced by std::unique_ptr< _Result< _Res > >::reset(), and std::unique_ptr< _Tp[], _Dp >::reset().


The documentation for this class was generated from the following files: