Using difference_type #765
Description
In line - https://github.com/Microsoft/GSL/blob/master/include/gsl/span#L144 , one can just use "difference_type" instead of "typename Span::index_type" declared before, right?
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In line - https://github.com/Microsoft/GSL/blob/master/include/gsl/span#L144 , one can just use "difference_type" instead of "typename Span::index_type" declared before, right?