cpp/ranges/zip view/sentinel/operator cmp

Compares the underlying tuple of iterators of with the underlying tuple of sentinels of.

Return value
Let denote the underlying tuple of iterators, and  denote the underlying tuple of sentinels.

Returns
 * if at least one underlying iterator, obtained by expression equivalent to, evaluates equal (using an appropriate ) to some underlying sentinel, obtained by expression equivalent to , for some index in ranges ,
 * otherwise.