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std::span::rbegin, std::span::crbegin

constexpr reverse_iterator rbegin() const noexcept;
constexpr const_reverse_iterator crbegin() const noexcept;

Returns a reverse iterator to the first element of the reversed span. It corresponds to the last element of the non-reversed span. If the span is empty, the returned iterator is equal to rend().

range-rbegin-rend.svg

Parameters

(none).

Return value

Reverse iterator to the first element.

Complexity

Constant.

See also

returns a reverse iterator to the end
(public member function)

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