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std::uninitialized_copy

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< cpp‎ | memory

 
 
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Defined in header <memory>
template< class InputIt, class ForwardIt >
ForwardIt uninitialized_copy( InputIt first, InputIt last, ForwardIt d_first );
Cópias elementos da [first, last) intervalo para um começo memória não inicializada área no d_first. Os elementos na área não inicializado são construídos usando construtor de cópia.
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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Índice

[editar] Parâmetros

first, last -
a gama de elementos de copiar
Original:
the range of the elements to copy
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d_first -
o início do intervalo 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

Iterador para o elemento passado o último elemento copiado.
Original:
Iterator to the element past the last element copied.
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[editar] Complexidade

Linear da distância entre first e last
Original:
Linear in the distance between first and last
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[editar] Possível implementação

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] Exemplo

[editar] Veja também

copia uma série de objetos para uma área de memória não inicializada
Original:
copies a number of objects to an uninitialized area of memory
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(modelo de função) [edit]