23 Iterators library [iterators]

23.5 Iterator adaptors [predef.iterators]

23.5.3 Move iterators and sentinels [move.iterators]

23.5.3.4 Construction and assignment [move.iter.cons]

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constexpr move_iterator();
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Effects: Constructs a move_­iterator, value-initializing current.
Iterator operations applied to the resulting iterator have defined behavior if and only if the corresponding operations are defined on a value-initialized iterator of type Iterator.
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constexpr explicit move_iterator(Iterator i);
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Effects: Constructs a move_­iterator, initializing current with std​::​move(i).
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template<class U> constexpr move_iterator(const move_iterator<U>& u);
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Mandates: U is convertible to Iterator.
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Effects: Constructs a move_­iterator, initializing current with u.base().
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template<class U> constexpr move_iterator& operator=(const move_iterator<U>& u);
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Mandates: U is convertible to Iterator.
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Effects: Assigns u.base() to current.