25 Iterators library [iterators]

25.5 Iterator adaptors [predef.iterators]

25.5.4 Move iterators and sentinels [move.iterators]

25.5.4.5 Conversion [move.iter.op.conv]

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constexpr const Iterator& base() const & noexcept;
1
#
Returns: current.
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constexpr Iterator base() &&;
2
#
Returns: std​::​move(current).