include/bits/locale_facets.h

279        *  ctype<char_type>::do_widen(c).
289       { return this->do_widen(__c); }
296        *  ctype<char_type>::do_widen(c).
308       { return this->do_widen(__lo, __hi, __to); }
506        *  do_widen() is a hook for a derived facet to change the behavior of
507        *  widening.  do_widen() must always return the same result for the
517       do_widen(char) const = 0;
525        *  do_widen() is a hook for a derived facet to change the behavior of
526        *  widening.  do_widen() must always return the same result for the
538       do_widen(const char* __lo, const char* __hi,
650       do_widen(char __c) const;
653       do_widen(const char* __lo, const char* __hi, char_type* __dest) const;
857        *  This function works as if it returns ctype<char>::do_widen(c).
858        *  do_widen() must always return the same result for the same input.
872 	return this->do_widen(__c);
882        *  This function works as if it returns ctype<char>::do_widen(c).
883        *  do_widen() must always return the same result for the same input.
903 	return this->do_widen(__lo, __hi, __to);
1064        *  do_widen() is a hook for a derived facet to change the behavior of
1065        *  widening.  do_widen() must always return the same result for the
1075       do_widen(char __c) const
1085        *  do_widen() is a hook for a derived facet to change the behavior of
1086        *  widening.  do_widen() must always return the same result for the
1098       do_widen(const char* __lo, const char* __hi, char_type* __dest) const
1164 	do_widen(__tmp, __tmp + sizeof(__tmp), _M_widen);
1413        *  do_widen() is a hook for a derived facet to change the behavior of
1414        *  widening.  do_widen() must always return the same result for the
1424       do_widen(char) const;
1433        *  do_widen() is a hook for a derived facet to change the behavior of
1434        *  widening.  do_widen() must always return the same result for the
1446       do_widen(const char* __lo, const char* __hi, char_type* __dest) const;