1635     const intern_type* fend = frm;  in do_out()  local
1636     for (; fend != frm_end; ++fend)  in do_out()
1637         if (*fend == 0)  in do_out()
1645         size_t n = __libcpp_wcsnrtombs_l(to, &frm_nxt, static_cast<size_t>(fend-frm),  in do_out()
1665         if (fend != frm_end)  // set up next null terminated sequence  in do_out()
1678             for (fend = frm_nxt; fend != frm_end; ++fend)  in do_out()
1679                 if (*fend == 0)  in do_out()
1692     const extern_type* fend = frm;  in do_in()  local
1693     for (; fend != frm_end; ++fend)  in do_in()
1694         if (*fend == 0)  in do_in()
1702         size_t n = __libcpp_mbsnrtowcs_l(to, &frm_nxt, static_cast<size_t>(fend-frm),  in do_in()
1709                 n = __libcpp_mbrtowc_l(to_nxt, frm, static_cast<size_t>(fend-frm),  in do_in()
1735         if (fend != frm_end)  // set up next null terminated sequence  in do_in()
1744             for (fend = frm_nxt; fend != frm_end; ++fend)  in do_in()
1745                 if (*fend == 0)  in do_in()