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std_shared_ptr.3cxx
Langue: en
Version: 357200 (ubuntu - 24/10/10)
Section: 3 (Bibliothèques de fonctions)
Sommaire
- NAME
- SYNOPSIS
- Detailed Description
- Constructor & Destructor Documentation
- template<typename _Tp> std::shared_ptr< _Tp >::shared_ptr () [inline]
- template<typename _Tp> template<typename _Tp1 > std::shared_ptr< _Tp >::shared_ptr (_Tp1 * __p) [inline, explicit]
- template<typename _Tp> template<typename _Tp1 , typename _Deleter > std::shared_ptr< _Tp >::shared_ptr (_Tp1 * __p, _Deleter __d) [inline]
- template<typename _Tp> template<typename _Tp1 , typename _Deleter , typename _Alloc > std::shared_ptr< _Tp >::shared_ptr (_Tp1 * __p, _Deleter __d, const _Alloc & __a) [inline]
- template<typename _Tp> template<typename _Tp1 > std::shared_ptr< _Tp >::shared_ptr (const shared_ptr< _Tp1 > & __r, _Tp * __p) [inline]
- template<typename _Tp> template<typename _Tp1 > std::shared_ptr< _Tp >::shared_ptr (const shared_ptr< _Tp1 > & __r) [inline]
- template<typename _Tp> std::shared_ptr< _Tp >::shared_ptr (shared_ptr< _Tp > && __r) [inline]
- template<typename _Tp> template<typename _Tp1 > std::shared_ptr< _Tp >::shared_ptr (shared_ptr< _Tp1 > && __r) [inline]
- template<typename _Tp> template<typename _Tp1 > std::shared_ptr< _Tp >::shared_ptr (const weak_ptr< _Tp1 > & __r) [inline, explicit]
- Friends And Related Function Documentation
- Author
NAME
std::shared_ptr -A smart pointer with reference-counted copy semantics.
SYNOPSIS
Inherits __shared_ptr< _Tp >.
Public Member Functions
shared_ptr ()
template<typename _Tp1 > shared_ptr (_Tp1 *__p)
template<typename _Tp1 , typename _Deleter , typename _Alloc > shared_ptr (_Tp1 *__p, _Deleter __d, const _Alloc &__a)
template<typename _Tp1 > shared_ptr (shared_ptr< _Tp1 > &&__r)
template<typename _Tp1 > shared_ptr (const weak_ptr< _Tp1 > &__r)
template<typename _Tp1 > shared_ptr (const shared_ptr< _Tp1 > &__r, _Tp *__p)
template<typename _Tp1 > shared_ptr (std::auto_ptr< _Tp1 > &&__r)
template<typename _Tp1 , typename _Del > shared_ptr (std::unique_ptr< _Tp1, _Del > &&__r)
template<typename _Tp1 , typename _Deleter > shared_ptr (_Tp1 *__p, _Deleter __d)
template<typename _Tp1 > shared_ptr (const shared_ptr< _Tp1 > &__r)
shared_ptr (shared_ptr &&__r)
template<class _Tp1 > shared_ptr & operator= (shared_ptr< _Tp1 > &&__r)
template<typename _Tp1 > shared_ptr & operator= (const shared_ptr< _Tp1 > &__r)
shared_ptr & operator= (shared_ptr &&__r)
template<typename _Tp1 , typename _Del > shared_ptr & operator= (std::unique_ptr< _Tp1, _Del > &&__r)
template<typename _Tp1 > shared_ptr & operator= (std::auto_ptr< _Tp1 > &&__r)
Friends
template<typename _Tp1 , typename _Alloc , typename... _Args> shared_ptr< _Tp1 > allocate_shared (_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 91 of file shared_ptr.h.
Constructor & Destructor Documentation
template<typename _Tp> std::shared_ptr< _Tp >::shared_ptr () [inline]
Construct an empty shared_ptr. Postcondition:
- use_count()==0 && get()==0
Definition at line 98 of file shared_ptr.h.
template<typename _Tp> template<typename _Tp1 > std::shared_ptr< _Tp >::shared_ptr (_Tp1 * __p) [inline, explicit]
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 107 of file shared_ptr.h.
template<typename _Tp> template<typename _Tp1 , typename _Deleter > std::shared_ptr< _Tp >::shared_ptr (_Tp1 * __p, _Deleter __d) [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 123 of file shared_ptr.h.
template<typename _Tp> template<typename _Tp1 , typename _Deleter , typename _Alloc > std::shared_ptr< _Tp >::shared_ptr (_Tp1 * __p, _Deleter __d, const _Alloc & __a) [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 141 of file shared_ptr.h.
template<typename _Tp> template<typename _Tp1 > std::shared_ptr< _Tp >::shared_ptr (const shared_ptr< _Tp1 > & __r, _Tp * __p) [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.
shared_ptr< pair<int,int> > pii(new pair<int,int>()); shared_ptr<int> pi(pii, &pii->first); assert(pii.use_count() == 2);
Definition at line 163 of file shared_ptr.h.
template<typename _Tp> template<typename _Tp1 > std::shared_ptr< _Tp >::shared_ptr (const shared_ptr< _Tp1 > & __r) [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 174 of file shared_ptr.h.
template<typename _Tp> std::shared_ptr< _Tp >::shared_ptr (shared_ptr< _Tp > && __r) [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 181 of file shared_ptr.h.
template<typename _Tp> template<typename _Tp1 > std::shared_ptr< _Tp >::shared_ptr (shared_ptr< _Tp1 > && __r) [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 190 of file shared_ptr.h.
template<typename _Tp> template<typename _Tp1 > std::shared_ptr< _Tp >::shared_ptr (const weak_ptr< _Tp1 > & __r) [inline, explicit]
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 202 of file shared_ptr.h.
Friends And Related Function Documentation
template<typename _Tp> template<typename _Tp1 , typename _Alloc , typename... _Args> shared_ptr<_Tp1> allocate_shared (_Alloc __a, _Args &&... __args) [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 452 of file shared_ptr.h.
Author
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