void iterate_every_other_element(multi_span<int, dynamic_range> av) { // pick every other element auto length = av.size() / 2; #if _MSC_VER > 1800 auto bounds = strided_bounds<1>({length}, {2}); #else auto bounds = strided_bounds<1>(index<1>{ length }, index<1>{ 2 }); #endif strided_span<int, 1> strided(&av.data()[1], av.size() - 1, bounds); CHECK(strided.size() == length); CHECK(strided.bounds().index_bounds()[0] == length); for (auto i = 0; i < strided.size(); ++i) { CHECK(strided[i] == av[2 * i + 1]); } int idx = 0; for (auto num : strided) { CHECK(num == av[2 * idx + 1]); idx++; } }