27 Iterators library [iterators]

27.5 Iterator adaptors [predef.iterators]

27.5.1 Reverse iterators [reverse.iterators] reverse_­iterator operations [reverse.iter.ops] reverse_­iterator constructor [reverse.iter.cons]

constexpr reverse_iterator();

Effects: Value-initializes 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.

constexpr explicit reverse_iterator(Iterator x);

Effects: Initializes current with x.

template <class U> constexpr reverse_iterator(const reverse_iterator<U>& u);

Effects: Initializes current with u.current.