25 template<class T, class Iter>
34             Iter it = std::shift_left(Iter(work), Iter(work+n), k);  in test()
36                 assert(it == Iter(work+n-k));  in test()
39                 assert(it == Iter(work));  in test()
49         Iter b = Iter(std::begin(input));  in test()
50         Iter e = Iter(std::end(input));  in test()
51         Iter it = std::shift_left(b, e, 0);  in test()
60         Iter b = Iter(std::begin(input));  in test()
61         Iter e = Iter(std::end(input));  in test()
62         Iter it = std::shift_left(b, e, 1);  in test()
68         Iter b = Iter(std::begin(input));  in test()
69         Iter e = Iter(std::end(input));  in test()
70         Iter it = std::shift_left(b, e, 2);  in test()
76         Iter b = Iter(std::begin(input));  in test()
77         Iter e = Iter(std::end(input));  in test()
78         Iter it = std::shift_left(b, e, 6);  in test()
86         Iter b = Iter(std::begin(input));  in test()
87         Iter e = Iter(std::end(input));  in test()
88         Iter it = std::shift_left(b, e, std::size(input));  in test()
97         Iter b = Iter(std::begin(input));  in test()
98         Iter e = Iter(std::end(input));  in test()
99         Iter it = std::shift_left(b, e, std::size(input) + 1);  in test()