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std::uninitialized_copy

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< cpp‎ | memory

 
 
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Relational operators
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Gestión de memoria dinámica
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Allocators
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Uninitialized storage
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uninitialized_copy
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C Library
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Defined in header <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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Type requirements
-
InputIt must meet the requirements of InputIterator.
-
ForwardIt must meet the requirements of 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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(función de plantilla) [edit]