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std::uninitialized_copy

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< cpp‎ | memory

 
 
Utilidades de la biblioteca
Escriba apoyo (basic types, RTTI, type traits)
Gestión de memoria dinámica
Gestión de errores
Programa de servicios públicos
Funciones variadic
Fecha y hora
Objetos Function
(C++11)
Operadores relacionales
Original:
Relational operators
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Pares y tuplas
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Pairs and tuples
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(C++11)
Cambiar, hacia adelante y mover
Original:
Swap, forward and move
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(C++11)
(C++11)
(C++11)
 
Gestión de memoria dinámica
Bajo la gestión de memoria de nivel
Los asignadores
Original:
Allocators
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Inicializar el almacenamiento
Original:
Uninitialized storage
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uninitialized_copy
Punteros inteligentes
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Smart pointers
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(C++11)
(C++11)
(C++11)
(obsoleto)
(C++11)
Garbage soporte colección
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Garbage collection support
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Varios
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Miscellaneous
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(C++11)
(C++11)
C Library
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C Library
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Definido en la cabecera <memory>
template< class InputIt, class ForwardIt >
ForwardIt uninitialized_copy( InputIt first, InputIt last, ForwardIt d_first );
Copia los elementos de la gama [first, last) a un principio de memoria no inicializada en el área d_first. Los elementos en el área sin inicializar se construyen utilizando constructor de copia .
Original:
Copies elements from the range [first, last) to an uninitialized memory area beginning at d_first. The elements in the uninitialized area are constructed using copy constructor.
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Contenido

[editar] Parámetros

first, last -
la gama de los elementos para copiar
Original:
the range of the elements to copy
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d_first -
el comienzo del rango de destino
Original:
the beginning of the destination range
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Requerimientos de tipo
-
InputIt debe reunir los requerimientos de InputIterator.
-
ForwardIt debe reunir los requerimientos de ForwardIterator.

[editar] Valor de retorno

Iterator al elemento pasado el último elemento copiado .
Original:
Iterator to the element past the last element copied.
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[editar] Complejidad

Lineal en la distancia entre first y last
Original:
Linear in the distance between first and last
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[editar] Posible implementación

template<class InputIt, class ForwardIt>
ForwardIt uninitialized_copy(InputIt first, InputIt last, ForwardIt d_first)
{
    typedef typename std::iterator_traits<ForwardIt>::value_type Value;
    for (; first != last; ++first, ++d_first) {
        ::new (static_cast<void*>(&*d_first)) Value(*first);
    }
    return d_first;
}

[editar] Ejemplo

[editar] Ver también

copia un número de objetos a un área de memoria no inicializada
Original:
copies a number of objects to an uninitialized area of memory
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(plantilla de función) [editar]