88 struct is_even  struct
98 struct is_even<stable_test>  struct
200     auto iter = std::partition(working.begin(), working.end(), is_even<uint8_t>());  in partition()
202     if (!std::all_of (working.begin(), iter, is_even<uint8_t>())) return 1;  in partition()
203     if (!std::none_of(iter,   working.end(), is_even<uint8_t>())) return 2;  in partition()
215         is_even<uint8_t>());  in partition_copy()
221     if (!std::all_of (v1.begin(), v1.end(), is_even<uint8_t>())) return 2;  in partition_copy()
222     if (!std::none_of(v2.begin(), v2.end(), is_even<uint8_t>())) return 3;  in partition_copy()
254     auto iter = std::stable_partition(working.begin(), working.end(), is_even<stable_test>());  in stable_partition()
256     if (!std::all_of (working.begin(), iter, is_even<stable_test>())) return 1;  in stable_partition()
257     if (!std::none_of(iter,   working.end(), is_even<stable_test>())) return 2;  in stable_partition()