Public Types | |
| typedef _Tp | element_type |
Public Member Functions | |
| constexpr | shared_ptr () |
| shared_ptr (const shared_ptr &)=default | |
| template<typename _Tp1 > | |
| shared_ptr (_Tp1 *__p) | |
| template<typename _Tp1 , typename _Deleter > | |
| shared_ptr (_Tp1 *__p, _Deleter __d) | |
| template<typename _Deleter > | |
| shared_ptr (nullptr_t __p, _Deleter __d) | |
| template<typename _Tp1 , typename _Deleter , typename _Alloc > | |
| shared_ptr (_Tp1 *__p, _Deleter __d, _Alloc __a) | |
| template<typename _Deleter , typename _Alloc > | |
| shared_ptr (nullptr_t __p, _Deleter __d, _Alloc __a) | |
| template<typename _Tp1 > | |
| shared_ptr (const shared_ptr< _Tp1 > &__r, _Tp *__p) | |
| template<typename _Tp1 , typename = typename std::enable_if<std::is_convertible<_Tp1*, _Tp*>::value>::type> | |
| shared_ptr (const shared_ptr< _Tp1 > &__r) | |
| shared_ptr (shared_ptr &&__r) | |
| template<typename _Tp1 , typename = typename std::enable_if<std::is_convertible<_Tp1*, _Tp*>::value>::type> | |
| shared_ptr (shared_ptr< _Tp1 > &&__r) | |
| template<typename _Tp1 > | |
| shared_ptr (const weak_ptr< _Tp1 > &__r) | |
| template<typename _Tp1 , typename _Del > | |
| shared_ptr (std::unique_ptr< _Tp1, _Del > &&__r) | |
| constexpr | shared_ptr (nullptr_t __p) |
| _Tp * | get () const |
| operator bool () const | |
|
std::add_lvalue_reference< _Tp > ::type | operator* () const |
| _Tp * | operator-> () const |
| shared_ptr & | operator= (const shared_ptr &)=default |
| template<typename _Tp1 > | |
| shared_ptr & | operator= (const shared_ptr< _Tp1 > &__r) |
| shared_ptr & | operator= (shared_ptr &&__r) |
| template<class _Tp1 > | |
| shared_ptr & | operator= (shared_ptr< _Tp1 > &&__r) |
| template<typename _Tp1 , typename _Del > | |
| shared_ptr & | operator= (std::unique_ptr< _Tp1, _Del > &&__r) |
| template<typename _Tp1 > | |
| bool | owner_before (__shared_ptr< _Tp1, _Lp > const &__rhs) const |
| template<typename _Tp1 > | |
| bool | owner_before (__weak_ptr< _Tp1, _Lp > const &__rhs) const |
| void | reset () |
| template<typename _Tp1 > | |
| void | reset (_Tp1 *__p) |
| template<typename _Tp1 , typename _Deleter > | |
| void | reset (_Tp1 *__p, _Deleter __d) |
| template<typename _Tp1 , typename _Deleter , typename _Alloc > | |
| void | reset (_Tp1 *__p, _Deleter __d, _Alloc __a) |
| void | swap (__shared_ptr< _Tp, _Lp > &__other) |
| bool | unique () const |
| long | use_count () const |
Friends | |
| template<typename _Tp1 , typename _Alloc , typename... _Args> | |
| shared_ptr< _Tp1 > | allocate_shared (const _Alloc &__a, _Args &&...__args) |
Detailed Description
template<typename _Tp>
class std::shared_ptr< _Tp >
A smart pointer with reference-counted copy semantics.
The object pointed to is deleted when the last shared_ptr pointing to it is destroyed or reset.
Definition at line 93 of file shared_ptr.h.
Constructor & Destructor Documentation
|
inline |
Construct an empty shared_ptr.
- Postcondition
- use_count()==0 && get()==0
Definition at line 100 of file shared_ptr.h.
|
inlineexplicit |
Construct a shared_ptr that owns the pointer __p.
- Parameters
-
__p A pointer that is convertible to element_type*.
- Postcondition
- use_count() == 1 && get() == __p
- Exceptions
-
std::bad_alloc,in which case delete__p is called.
Definition at line 112 of file shared_ptr.h.
|
inline |
Construct a shared_ptr that owns the pointer __p and the deleter __d.
- Parameters
-
__p A pointer. __d A deleter.
- Postcondition
- use_count() == 1 && get() == __p
- Exceptions
-
std::bad_alloc,in which case __d(__p) is called.
Requirements: _Deleter's copy constructor and destructor must not throw
__shared_ptr will release __p by calling __d(__p)
Definition at line 129 of file shared_ptr.h.
|
inline |
Construct a shared_ptr that owns a null pointer and the deleter __d.
- Parameters
-
__p A null pointer constant. __d A deleter.
- Postcondition
- use_count() == 1 && get() == __p
- Exceptions
-
std::bad_alloc,in which case __d(__p) is called.
Requirements: _Deleter's copy constructor and destructor must not throw
The last owner will call __d(__p)
Definition at line 146 of file shared_ptr.h.
|
inline |
Construct a shared_ptr that owns the pointer __p and the deleter __d.
- Parameters
-
__p A pointer. __d A deleter. __a An allocator.
- Postcondition
- use_count() == 1 && get() == __p
- Exceptions
-
std::bad_alloc,in which case __d(__p) is called.
Requirements: _Deleter's copy constructor and destructor must not throw _Alloc's copy constructor and destructor must not throw.
__shared_ptr will release __p by calling __d(__p)
Definition at line 165 of file shared_ptr.h.
|
inline |
Construct a shared_ptr that owns a null pointer and the deleter __d.
- Parameters
-
__p A null pointer constant. __d A deleter. __a An allocator.
- Postcondition
- use_count() == 1 && get() == __p
- Exceptions
-
std::bad_alloc,in which case __d(__p) is called.
Requirements: _Deleter's copy constructor and destructor must not throw _Alloc's copy constructor and destructor must not throw.
The last owner will call __d(__p)
Definition at line 184 of file shared_ptr.h.
|
inline |
Constructs a shared_ptr instance that stores __p and shares ownership with __r.
- Parameters
-
__r A shared_ptr. __p A pointer that will remain valid while *__r is valid.
- Postcondition
- get() == __p && use_count() == __r.use_count()
This can be used to construct a shared_ptr to a sub-object of an object managed by an existing shared_ptr.
Definition at line 206 of file shared_ptr.h.
|
inline |
If __r is empty, constructs an empty shared_ptr; otherwise construct a shared_ptr that shares ownership with __r.
- Parameters
-
__r A shared_ptr.
- Postcondition
- get() == __r.get() && use_count() == __r.use_count()
Definition at line 218 of file shared_ptr.h.
|
inline |
Move-constructs a shared_ptr instance from __r.
- Parameters
-
__r A shared_ptr rvalue.
- Postcondition
- *this contains the old value of __r, __r is empty.
Definition at line 226 of file shared_ptr.h.
|
inline |
Move-constructs a shared_ptr instance from __r.
- Parameters
-
__r A shared_ptr rvalue.
- Postcondition
- *this contains the old value of __r, __r is empty.
Definition at line 236 of file shared_ptr.h.
|
inlineexplicit |
Constructs a shared_ptr that shares ownership with __r and stores a copy of the pointer stored in __r.
- Parameters
-
__r A weak_ptr.
- Postcondition
- use_count() == __r.use_count()
- Exceptions
-
bad_weak_ptr when __r.expired(), in which case the constructor has no effect.
Definition at line 248 of file shared_ptr.h.
|
inline |
Construct an empty shared_ptr.
- Parameters
-
__p A null pointer constant.
- Postcondition
- use_count() == 0 && get() == nullptr
Definition at line 266 of file shared_ptr.h.
Friends And Related Function Documentation
|
friend |
Create an object that is owned by a shared_ptr.
- Parameters
-
__a An allocator. __args Arguments for the _Tp object's constructor.
- Returns
- A shared_ptr that owns the newly created object.
- Exceptions
-
An exception thrown from _Alloc::allocate or from the constructor of _Tp.
A copy of __a will be used to allocate memory for the shared_ptr and the new object.
Definition at line 532 of file shared_ptr.h.
The documentation for this class was generated from the following file:
