25 Algorithms library [algorithms]

25.11 Specialized <memory> algorithms [specialized.algorithms]

25.11.4 uninitialized_­copy [uninitialized.copy]

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template<class InputIterator, class NoThrowForwardIterator> NoThrowForwardIterator uninitialized_copy(InputIterator first, InputIterator last, NoThrowForwardIterator result);
1
#
Preconditions: does not overlap with [first, last).
2
#
Effects: Equivalent to: 
for (; first != last; ++result, (void) ++first)
  ::new (voidify(*result))
    typename iterator_traits<NoThrowForwardIterator>::value_type(*first);
3
#
Returns: result.
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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_reference_t<I>> uninitialized_copy_result<I, O> uninitialized_copy(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_reference_t<IR>> uninitialized_copy_result<borrowed_iterator_t<IR>, borrowed_iterator_t<OR>> uninitialized_copy(IR&& in_range, OR&& out_range); }
4
#
Preconditions: [ofirst, olast) does not overlap with [ifirst, ilast).
5
#
Effects: Equivalent to: 
for (; ifirst != ilast && ofirst != olast; ++ofirst, (void)++ifirst) {
  ::new (voidify(*ofirst)) remove_reference_t<iter_reference_t<O>>(*ifirst);
}
return {std::move(ifirst), ofirst};
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template<class InputIterator, class Size, class NoThrowForwardIterator> NoThrowForwardIterator uninitialized_copy_n(InputIterator first, Size n, NoThrowForwardIterator result);
6
#
Preconditions: does not overlap with .
7
#
Effects: Equivalent to: 
for ( ; n > 0; ++result, (void) ++first, --n) {
  ::new (voidify(*result))
    typename iterator_traits<NoThrowForwardIterator>::value_type(*first);
}
8
#
Returns: result.
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namespace ranges { template<input_iterator I, no-throw-forward-iterator O, no-throw-sentinel<O> S> requires constructible_from<iter_value_t<O>, iter_reference_t<I>> uninitialized_copy_n_result<I, O> uninitialized_copy_n(I ifirst, iter_difference_t<I> n, O ofirst, S olast); }
9
#
Preconditions: [ofirst, olast) does not overlap with .
10
#
Effects: Equivalent to: 
auto t = uninitialized_copy(counted_iterator(ifirst, n),
                            default_sentinel, ofirst, olast);
return {std::move(t.in).base(), t.out};