const wchar_t* ctype_byname<wchar_t>::do_tolower(wchar_t* low, const wchar_t* high) const { for ( ; low < high; ++low) *low = _Locale_wchar_tolower(_M_ctype, *low); return high; }
wchar_t ctype_byname<wchar_t>::do_tolower(wchar_t c) const { return _Locale_wchar_tolower(_M_ctype, c); }