23 Iterators library [iterators]

23.5 Iterator adaptors [predef.iterators]

23.5.1 Reverse iterators [reverse.iterators]

23.5.1.5 Element access [reverse.iter.elem]

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constexpr reference operator*() const;
1
#
Effects: As if by: 
Iterator tmp = current;
return *--tmp;
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constexpr pointer operator->() const requires (is_pointer_v<Iterator> || requires (const Iterator i) { i.operator->(); });
2
#
Effects:
  • (2.1)
    If Iterator is a pointer type, equivalent to: return prev(current);
  • (2.2)
    Otherwise, equivalent to: return prev(current).operator->();
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constexpr unspecified operator[](difference_type n) const;
3
#
Returns: current[-n-1].