25 Algorithms library [algorithms]

25.11 Specialized <memory> algorithms [specialized.algorithms]

25.11.5 uninitialized_­move [uninitialized.move]

template<class InputIterator, class NoThrowForwardIterator> NoThrowForwardIterator uninitialized_move(InputIterator first, InputIterator last, NoThrowForwardIterator result);
Preconditions: does not overlap with [first, last).
Effects: Equivalent to:
for (; first != last; (void)++result, ++first)
  ::new (voidify(*result))
    typename iterator_traits<NoThrowForwardIterator>::value_type(std::move(*first));
return result;
namespace ranges { template<input_iterator I, sentinel_for<I> S1, no-throw-forward-iterator O, no-throw-sentinel<O> S2> requires constructible_from<iter_value_t<O>, iter_rvalue_reference_t<I>> uninitialized_move_result<I, O> uninitialized_move(I ifirst, S1 ilast, O ofirst, S2 olast); template<input_­range IR, no-throw-forward-range OR> requires constructible_from<range_value_t<OR>, range_rvalue_reference_t<IR>> uninitialized_move_result<borrowed_iterator_t<IR>, borrowed_iterator_t<OR>> uninitialized_move(IR&& in_range, OR&& out_range); }
Preconditions: [ofirst, olast) does not overlap with [ifirst, ilast).
Effects: Equivalent to:
for (; ifirst != ilast && ofirst != olast; ++ofirst, (void)++ifirst) {
  ::new (voidify(*ofirst))
    remove_reference_t<iter_reference_t<O>>(ranges::iter_move(ifirst));
}
return {std::move(ifirst), ofirst};
[Note:
If an exception is thrown, some objects in the range [first, last) are left in a valid, but unspecified state.
— end note]
template<class InputIterator, class Size, class NoThrowForwardIterator> pair<InputIterator, NoThrowForwardIterator> uninitialized_move_n(InputIterator first, Size n, NoThrowForwardIterator result);
Preconditions: does not overlap with .
Effects: Equivalent to:
for (; n > 0; ++result, (void) ++first, --n)
  ::new (voidify(*result))
    typename iterator_traits<NoThrowForwardIterator>::value_type(std::move(*first));
return {first, result};
namespace ranges { template<input_iterator I, no-throw-forward-iterator O, no-throw-sentinel<O> S> requires constructible_from<iter_value_t<O>, iter_rvalue_reference_t<I>> uninitialized_move_n_result<I, O> uninitialized_move_n(I ifirst, iter_difference_t<I> n, O ofirst, S olast); }
Preconditions: [ofirst, olast) does not overlap with .
Effects: Equivalent to:
auto t = uninitialized_move(counted_iterator(ifirst, n),
                            default_sentinel, ofirst, olast);
return {std::move(t.in).base(), t.out};
[Note:
If an exception is thrown, some objects in the range are left in a valid but unspecified state.
— end note]