23 Iterators library [iterators]

23.5 Iterator adaptors [predef.iterators]

23.5.3 Move iterators and sentinels [move.iterators]

23.5.3.8 Non-member functions [move.iter.nonmember]

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template<class Iterator1, class Iterator2> constexpr auto operator-( const move_iterator<Iterator1>& x, const move_iterator<Iterator2>& y) -> decltype(x.base() - y.base()); template<sized_­sentinel_­for<Iterator> S> friend constexpr iter_difference_t<Iterator> operator-(const move_sentinel<S>& x, const move_iterator& y); template<sized_­sentinel_­for<Iterator> S> friend constexpr iter_difference_t<Iterator> operator-(const move_iterator& x, const move_sentinel<S>& y);
1
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Returns: x.base() - y.base().
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template<class Iterator> constexpr move_iterator<Iterator> operator+(iter_difference_t<Iterator> n, const move_iterator<Iterator>& x);
2
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Constraints: x + n is well-formed and has type Iterator.
3
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Returns: x + n.
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friend constexpr iter_rvalue_reference_t<Iterator> iter_move(const move_iterator& i) noexcept(noexcept(ranges::iter_move(i.current)));
4
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Effects: Equivalent to: return ranges​::​iter_­move(i.current);
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template<indirectly_­swappable<Iterator> Iterator2> friend constexpr void iter_swap(const move_iterator& x, const move_iterator<Iterator2>& y) noexcept(noexcept(ranges::iter_swap(x.current, y.current)));
5
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Effects: Equivalent to: ranges​::​iter_­swap(x.current, y.current).
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template<class Iterator> constexpr move_iterator<Iterator> make_move_iterator(Iterator i);
6
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Returns: move_­iterator<Iterator>(std​::​move(i)).