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++;
}
}
