720     constexpr auto subspan = span.first<0>();  in TEST()  local
727     constexpr auto subspan = span.first<1>();  in TEST()  local
735     constexpr auto subspan = span.first<2>();  in TEST()  local
744     constexpr auto subspan = span.first<3>();  in TEST()  local
759     constexpr auto subspan = span.last<0>();  in TEST()  local
766     constexpr auto subspan = span.last<1>();  in TEST()  local
774     constexpr auto subspan = span.last<2>();  in TEST()  local
783     constexpr auto subspan = span.last<3>();  in TEST()  local
798     constexpr auto subspan = span.subspan<0>();  in TEST()  local
808     constexpr auto subspan = span.subspan<1>();  in TEST()  local
817     constexpr auto subspan = span.subspan<2>();  in TEST()  local
825     constexpr auto subspan = span.subspan<3>();  in TEST()  local
832     constexpr auto subspan = span.subspan<0, 0>();  in TEST()  local
839     constexpr auto subspan = span.subspan<1, 0>();  in TEST()  local
846     constexpr auto subspan = span.subspan<2, 0>();  in TEST()  local
853     constexpr auto subspan = span.subspan<0, 1>();  in TEST()  local
861     constexpr auto subspan = span.subspan<1, 1>();  in TEST()  local
869     constexpr auto subspan = span.subspan<2, 1>();  in TEST()  local
877     constexpr auto subspan = span.subspan<0, 2>();  in TEST()  local
886     constexpr auto subspan = span.subspan<1, 2>();  in TEST()  local
895     constexpr auto subspan = span.subspan<0, 3>();  in TEST()  local
923     auto subspan = span.first<0>();  in TEST()  local
930     auto subspan = span.first<1>();  in TEST()  local
938     auto subspan = span.first<2>();  in TEST()  local
947     auto subspan = span.first<3>();  in TEST()  local
962     auto subspan = span.last<0>();  in TEST()  local
969     auto subspan = span.last<1>();  in TEST()  local
977     auto subspan = span.last<2>();  in TEST()  local
986     auto subspan = span.last<3>();  in TEST()  local
1001     auto subspan = span.subspan<0>();  in TEST()  local
1011     auto subspan = span.subspan<1>();  in TEST()  local
1020     auto subspan = span.subspan<2>();  in TEST()  local
1028     auto subspan = span.subspan<3>();  in TEST()  local
1035     auto subspan = span.subspan<0, 0>();  in TEST()  local
1042     auto subspan = span.subspan<1, 0>();  in TEST()  local
1049     auto subspan = span.subspan<2, 0>();  in TEST()  local
1056     auto subspan = span.subspan<0, 1>();  in TEST()  local
1064     auto subspan = span.subspan<1, 1>();  in TEST()  local
1072     auto subspan = span.subspan<2, 1>();  in TEST()  local
1080     auto subspan = span.subspan<0, 2>();  in TEST()  local
1089     auto subspan = span.subspan<1, 2>();  in TEST()  local
1098     auto subspan = span.subspan<0, 3>();  in TEST()  local
1113     auto subspan = span.first(0u);  in TEST()  local
1119     auto subspan = span.first(1u);  in TEST()  local
1126     auto subspan = span.first(2u);  in TEST()  local
1134     auto subspan = span.first(3u);  in TEST()  local
1148     auto subspan = span.last(0u);  in TEST()  local
1154     auto subspan = span.last(1u);  in TEST()  local
1161     auto subspan = span.last(2u);  in TEST()  local
1169     auto subspan = span.last(3u);  in TEST()  local
1183     auto subspan = span.subspan(0);  in TEST()  local
1192     auto subspan = span.subspan(1);  in TEST()  local
1200     auto subspan = span.subspan(2);  in TEST()  local
1207     auto subspan = span.subspan(3);  in TEST()  local
1213     auto subspan = span.subspan(0, 0);  in TEST()  local
1219     auto subspan = span.subspan(1, 0);  in TEST()  local
1225     auto subspan = span.subspan(2, 0);  in TEST()  local
1231     auto subspan = span.subspan(0, 1);  in TEST()  local
1238     auto subspan = span.subspan(1, 1);  in TEST()  local
1245     auto subspan = span.subspan(2, 1);  in TEST()  local
1252     auto subspan = span.subspan(0, 2);  in TEST()  local
1260     auto subspan = span.subspan(1, 2);  in TEST()  local
1268     auto subspan = span.subspan(0, 3);  in TEST()  local
1755   constexpr span<const int> subspan =  in TEST()  local