std::uninitialized_copy

 

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Defined in header <memory>
template< class InputIterator, class ForwardIterator > ForwardIterator uninitialized_copy( InputIterator first,                                     InputIterator last,                                     ForwardIterator d_first );

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.

Parameters

first, last	-	the range of the elements to copy
d_first	-	the beginning of the destination range

Return value

iterator to the element past the last element copied.

Complexity

linear in the distance between first and last

Possible implementation

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

See also

uninitialized_copy_n (C++11)	copies a number of objects to an uninitialized area of memory (function template)