49     CharT* wp = nullptr;  in test()  local
52     std::codecvt_base::result r = c.in(m, n, n + 4, np, w, w + 2, wp);  in test()
54     assert(wp == w);  in test()
60     r = c.in(m, n, n + 3, np, w, w + 2, wp);  in test()
62     assert(wp == w);  in test()
67     r = c.in(m, n, n + 2, np, w, w + 2, wp);  in test()
69     assert(wp == w + 1);  in test()
74     r = c.in(m, n, n + 1, np, w, w + 2, wp);  in test()
76     assert(wp == w + 1);  in test()
86     CharT* wp = nullptr;  in test()  local
89     std::codecvt_base::result r = c.in(m, n, n + 7, np, w, w + 2, wp);  in test()
91     assert(wp == w + 2);  in test()
99     r = c.in(m, n, n + 3, np, w, w + 2, wp);  in test()
101     assert(wp == w + 1);  in test()
107     r = c.in(m, n, n + 2, np, w, w + 2, wp);  in test()
109     assert(wp == w + 1);  in test()
114     r = c.in(m, n, n + 1, np, w, w + 2, wp);  in test()
116     assert(wp == w + 1);  in test()
129     CharT* wp = nullptr;  in test()  local
132     std::codecvt_base::result r = c.in(m, n, n + 4, np, w, w + 2, wp);  in test()
134     assert(wp == w + 2);  in test()
142     r = c.in(m, n, n + 3, np, w, w + 2, wp);  in test()
144     assert(wp == w + 1);  in test()
150     r = c.in(m, n, n + 2, np, w, w + 2, wp);  in test()
152     assert(wp == w + 1);  in test()
157     r = c.in(m, n, n + 1, np, w, w + 2, wp);  in test()
159     assert(wp == w + 1);  in test()
168     CharT* wp = nullptr;  in test()  local
171     std::codecvt_base::result r = c.in(m, n, n + 4, np, w, w + 2, wp);  in test()
173     assert(wp == w);  in test()
179     r = c.in(m, n, n + 3, np, w, w + 2, wp);  in test()
181     assert(wp == w);  in test()
186     r = c.in(m, n, n + 2, np, w, w + 2, wp);  in test()
188     assert(wp == w + 1);  in test()
193     r = c.in(m, n, n + 1, np, w, w + 2, wp);  in test()
195     assert(wp == w + 1);  in test()
205     CharT* wp = nullptr;  in test()  local
208     std::codecvt_base::result r = c.in(m, n, n + 7, np, w, w + 2, wp);  in test()
210     assert(wp == w + 2);  in test()
218     r = c.in(m, n, n + 3, np, w, w + 2, wp);  in test()
220     assert(wp == w + 1);  in test()
226     r = c.in(m, n, n + 2, np, w, w + 2, wp);  in test()
228     assert(wp == w + 1);  in test()
233     r = c.in(m, n, n + 1, np, w, w + 2, wp);  in test()
235     assert(wp == w + 1);  in test()