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std::shared_ptr::reset

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< cpp‎ | memory‎ | shared ptr

 
 
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initializer_list(C++11)
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rel_ops::operator!=
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Swap, forward and move
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Gestión de memoria dinámica
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Los asignadores
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Allocators
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allocator
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Smart pointers
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std::shared_ptr
Las funciones miembro
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shared_ptr::shared_ptr
shared_ptr::~shared_ptr
shared_ptr::operator=
Modificadores
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Modifiers
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shared_ptr::reset
shared_ptr::swap
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shared_ptr::get
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std::swap
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std::hash
 
void reset();
(1) (desde C++11)
template< class Y >
void reset( Y* ptr );
(2) (desde C++11)
template< class Y, class Deleter >
void reset( Y* ptr, Deleter d );
(3) (desde C++11)
template< class Y, class Deleter, class Alloc >
void reset( Y* ptr, Deleter d, Alloc alloc );
(4) (desde C++11)
Reemplaza el objeto administrado con un objeto apuntado por ptr. Opcional Deleter d se pueden suministrar, que luego se utiliza para destruir el nuevo objeto cuando no hay objetos shared_ptr pertenece. De forma predeterminada, la expresión se utiliza como delete Deleter. delete expresión adecuado correspondiente al tipo suministrado siempre se selecciona, esta es la razón por la cual se implementa la función como plantilla usando un parámetro separado Y .
Original:
Replaces the managed object with an object pointed to by ptr. Optional deleter d can be supplied, which is later used to destroy the new object when no shared_ptr objects own it. By default, delete expression is used as deleter. Proper delete expression corresponding to the supplied type is always selected, this is the reason why the function is implemented as template using a separate parameter Y.
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Si *this ya posee un objeto y es el último shared_ptr ser dueño de ella, el objeto se destruye a través de la propiedad Deleter .
Original:
If *this already owns an object and it is the last shared_ptr owning it, the object is destroyed through the owned deleter.
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Si el objeto al que apunta ptr ya es propiedad, los resultados de la función en el comportamiento no definido .
Original:
If the object pointed to by ptr is already owned, the function results in undefined behavior.
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1)
Libera el propietario del bien administrado, si los hubiere. Después de la llamada, *this administra ningún objeto .
Original:
Releases the ownership of the managed object, if any. After the call, *this manages no object.
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2-4)
Reemplaza el objeto administrado con un objeto apuntado por ptr. Y debe ser un tipo completo e implícitamente convertible a T. Además:
Original:
Replaces the managed object with an object pointed to by ptr. Y must be a complete type and implicitly convertible to T. Additionally:
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2)
Utiliza la expresión delete como Deleter. Una expresión delete válida debe estar disponible, delete ptr es decir, debe estar bien formados, tienen un comportamiento bien definido y no lanzar ninguna excepción. Efectivamente llama shared_ptr<T>(ptr).swap(*this); .
Original:
Uses the delete expression as the deleter. A valid delete expression must be available, i.e. delete ptr must be well formed, have well-defined behavior and not throw any exceptions. Effectively calls shared_ptr<T>(ptr).swap(*this);.
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3)
Utiliza el especificado d Deleter Deleter como el. Deleter debe ser exigible para el tipo T, es decir d(ptr) deben estar bien formados, tienen un comportamiento bien definido y no lanzar ninguna excepción. Deleter debe ser CopyConstructible. Efectivamente llama shared_ptr<T>(ptr, d).swap(*this); .
Original:
Uses the specified deleter d as the deleter. Deleter must be callable for the type T, i.e. d(ptr) must be well formed, have well-defined behavior and not throw any exceptions. Deleter must be CopyConstructible. Effectively calls shared_ptr<T>(ptr, d).swap(*this);.
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4)
Igual que (3), pero, además, utiliza una copia del alloc para la asignación de datos para uso interno. Alloc debe ser un Allocator. El constructor de copia y el destructor no deben producir excepciones. Efectivamente llama shared_ptr<T>(ptr, d, alloc).swap(*this); .
Original:
Same as (3), but additionally uses a copy of alloc for allocation of data for internal use. Alloc must be a Allocator. The copy constructor and destructor must not throw exceptions. Effectively calls shared_ptr<T>(ptr, d, alloc).swap(*this);.
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Contenido

[editar] Parámetros

ptr -
puntero a un objeto de adquirir la propiedad de
Original:
pointer to an object to acquire ownership of
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d -
Deleter para almacenar por eliminación del objeto
Original:
deleter to store for deletion of the object
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alloc -
asignador de usar para asignaciones internas
Original:
allocator to use for internal allocations
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[editar] Valor de retorno

(Ninguno)
Original:
(none)
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[editar] Excepciones

1)
noexcept specification:  
noexcept
  (desde C++11)
2-4)
Según lo especificado por el constructor correspondiente .
Original:
As specified by the relevant constructor .
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[editar] Ejemplo

[editar] Ver también

constructs new shared_ptr
(miembro público función) [edit]