std::unique_ptr (3cxx)

Std::unique_ptr _tp, _dp -

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  4. std::unique_ptr: Std::unique_ptr _tp, _dp -
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  4. std::unique_ptr: Std::unique_ptr _tp, _dp -

SYNOPSIS

Public Types

typedef _Dp deleter_type

typedef _Tp element_type

typedef _Pointer::type pointer

Public Member Functions

constexpr unique_ptr () noexcept

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

constexpr unique_ptr (nullptr_t) noexcept

unique_ptr (unique_ptr &&__u) noexcept

template<typename _Up , typename _Ep , typename = _Require< is_convertible<typename unique_ptr<_Up, _Ep>::pointer, pointer>, __not_<is_array<_Up>>, 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_ptr & operator= (unique_ptr &&__u) noexcept

template<typename _Up , typename _Ep > enable_if< __and_

< is_convertible< typename

unique_ptr< _Up, _Ep >

::pointer, pointer >, __not_

< is_array< _Up > > >::value,

unique_ptr & >::type operator= (unique_ptr< _Up, _Ep > &&__u) noexcept"

unique_ptr & operator= (nullptr_t) noexcept

unique_ptr & operator= (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 129 of file unique_ptr.h.

Constructor & Destructor Documentation

template<typename _Tp, typename _Dp = default_delete<_Tp>> constexpr \fBstd::unique_ptr\fP< _Tp, _Dp >::\fBunique_ptr\fP ()\fC [inline]\fP, \fC [noexcept]\fP

Default constructor, creates a unique_ptr that owns nothing.

Definition at line 157 of file unique_ptr.h.

template<typename _Tp, typename _Dp = default_delete<_Tp>> \fBstd::unique_ptr\fP< _Tp, _Dp >::\fBunique_ptr\fP (pointer__p)\fC [inline]\fP, \fC [explicit]\fP, \fC [noexcept]\fP

Takes ownership of a pointer.

Parameters:

__p A pointer to an object of element_type

The deleter will be value-initialized.

Definition at line 169 of file unique_ptr.h.

template<typename _Tp, typename _Dp = default_delete<_Tp>> \fBstd::unique_ptr\fP< _Tp, _Dp >::\fBunique_ptr\fP (pointer__p, typename conditional< is_reference< deleter_type >::value, deleter_type, const deleter_type & >::type__d)\fC [inline]\fP, \fC [noexcept]\fP

Takes ownership of a pointer.

Parameters:

__p A pointer to an object of element_type

__d A reference to a deleter.

The deleter will be initialized with __d

Definition at line 181 of file unique_ptr.h.

template<typename _Tp, typename _Dp = default_delete<_Tp>> \fBstd::unique_ptr\fP< _Tp, _Dp >::\fBunique_ptr\fP (pointer__p, typename remove_reference< deleter_type >::type &&__d)\fC [inline]\fP, \fC [noexcept]\fP

Takes ownership of a pointer.

Parameters:

__p A pointer to an object of element_type

__d An rvalue reference to a deleter.

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

Definition at line 193 of file unique_ptr.h.

template<typename _Tp, typename _Dp = default_delete<_Tp>> constexpr \fBstd::unique_ptr\fP< _Tp, _Dp >::\fBunique_ptr\fP (nullptr_t)\fC [inline]\fP, \fC [noexcept]\fP

Creates a unique_ptr that owns nothing.

Definition at line 200 of file unique_ptr.h.

template<typename _Tp, typename _Dp = default_delete<_Tp>> \fBstd::unique_ptr\fP< _Tp, _Dp >::\fBunique_ptr\fP (\fBunique_ptr\fP< _Tp, _Dp > &&__u)\fC [inline]\fP, \fC [noexcept]\fP

Move constructor.

Definition at line 205 of file unique_ptr.h.

template<typename _Tp, typename _Dp = default_delete<_Tp>> template<typename _Up , typename _Ep , typename = _Require< is_convertible<typename unique_ptr<_Up, _Ep>::pointer, pointer>, __not_<is_array<_Up>>, typename conditional<is_reference<_Dp>::value, is_same<_Ep, _Dp>, is_convertible<_Ep, _Dp>>::type>> \fBstd::unique_ptr\fP< _Tp, _Dp >::\fBunique_ptr\fP (\fBunique_ptr\fP< _Up, _Ep > &&__u)\fC [inline]\fP, \fC [noexcept]\fP

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 220 of file unique_ptr.h.

template<typename _Tp, typename _Dp = default_delete<_Tp>> \fBstd::unique_ptr\fP< _Tp, _Dp >::~\fBunique_ptr\fP ()\fC [inline]\fP, \fC [noexcept]\fP

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

Definition at line 232 of file unique_ptr.h.

Member Function Documentation

template<typename _Tp, typename _Dp = default_delete<_Tp>> pointer \fBstd::unique_ptr\fP< _Tp, _Dp >::get () const\fC [inline]\fP, \fC [noexcept]\fP

Return the stored pointer.

Definition at line 304 of file unique_ptr.h.

template<typename _Tp, typename _Dp = default_delete<_Tp>> deleter_type& \fBstd::unique_ptr\fP< _Tp, _Dp >::get_deleter ()\fC [inline]\fP, \fC [noexcept]\fP

Return a reference to the stored deleter.

Definition at line 309 of file unique_ptr.h.

Referenced by std::unique_ptr< std::vector< bool > >::operator=(), std::unique_ptr< _Tp[], _Dp >::operator=(), std::unique_ptr< std::vector< bool > >::reset(), std::unique_ptr< _Tp[], _Dp >::reset(), std::unique_ptr< std::vector< bool > >::~unique_ptr(), and std::unique_ptr< _Tp[], _Dp >::~unique_ptr().

template<typename _Tp, typename _Dp = default_delete<_Tp>> const deleter_type& \fBstd::unique_ptr\fP< _Tp, _Dp >::get_deleter () const\fC [inline]\fP, \fC [noexcept]\fP

Return a reference to the stored deleter.

Definition at line 314 of file unique_ptr.h.

template<typename _Tp, typename _Dp = default_delete<_Tp>> \fBstd::unique_ptr\fP< _Tp, _Dp >::operator bool () const\fC [inline]\fP, \fC [explicit]\fP, \fC [noexcept]\fP

Return true if the stored pointer is not null.

Definition at line 318 of file unique_ptr.h.

template<typename _Tp, typename _Dp = default_delete<_Tp>> add_lvalue_reference<element_type>::type \fBstd::unique_ptr\fP< _Tp, _Dp >::operator* () const\fC [inline]\fP

Dereference the stored pointer.

Definition at line 288 of file unique_ptr.h.

template<typename _Tp, typename _Dp = default_delete<_Tp>> pointer \fBstd::unique_ptr\fP< _Tp, _Dp >::operator-> () const\fC [inline]\fP, \fC [noexcept]\fP

Return the stored pointer.

Definition at line 296 of file unique_ptr.h.

template<typename _Tp, typename _Dp = default_delete<_Tp>> \fBunique_ptr\fP& \fBstd::unique_ptr\fP< _Tp, _Dp >::operator= (\fBunique_ptr\fP< _Tp, _Dp > &&__u)\fC [inline]\fP, \fC [noexcept]\fP

Move assignment operator.

Parameters:

__u The object to transfer ownership from.

Invokes the deleter first if this object owns a pointer.

Definition at line 249 of file unique_ptr.h.

template<typename _Tp, typename _Dp = default_delete<_Tp>> template<typename _Up , typename _Ep > enable_if< __and_< is_convertible<typename \fBunique_ptr\fP<_Up, _Ep>::pointer, pointer>, __not_<is_array<_Up> > >::value, \fBunique_ptr\fP&>::type \fBstd::unique_ptr\fP< _Tp, _Dp >::operator= (\fBunique_ptr\fP< _Up, _Ep > &&__u)\fC [inline]\fP, \fC [noexcept]\fP

Assignment from another type.

Parameters:

__u The 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 269 of file unique_ptr.h.

template<typename _Tp, typename _Dp = default_delete<_Tp>> \fBunique_ptr\fP& \fBstd::unique_ptr\fP< _Tp, _Dp >::operator= (nullptr_t)\fC [inline]\fP, \fC [noexcept]\fP

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

Definition at line 278 of file unique_ptr.h.

template<typename _Tp, typename _Dp = default_delete<_Tp>> pointer \fBstd::unique_ptr\fP< _Tp, _Dp >::release ()\fC [inline]\fP, \fC [noexcept]\fP

Release ownership of any stored pointer.

Definition at line 325 of file unique_ptr.h.

template<typename _Tp, typename _Dp = default_delete<_Tp>> void \fBstd::unique_ptr\fP< _Tp, _Dp >::reset (pointer__p = \fCpointer()\fP)\fC [inline]\fP, \fC [noexcept]\fP

Replace the stored pointer.

Parameters:

__p The new pointer to store.

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

Definition at line 339 of file unique_ptr.h.

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

template<typename _Tp, typename _Dp = default_delete<_Tp>> void \fBstd::unique_ptr\fP< _Tp, _Dp >::swap (\fBunique_ptr\fP< _Tp, _Dp > &__u)\fC [inline]\fP, \fC [noexcept]\fP

Exchange the pointer and deleter with another object.

Definition at line 349 of file unique_ptr.h.

Referenced by std::unique_ptr< std::vector< bool > >::reset(), std::unique_ptr< _Tp[], _Dp >::reset(), std::unique_ptr< std::vector< bool > >::swap(), and std::unique_ptr< _Tp[], _Dp >::swap().

Author

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