namespace std {
  /*unspecified*/ resetiosflags(ios_base::fmtflags mask);
  /*unspecified*/ setiosflags  (ios_base::fmtflags mask);
  /*unspecified*/ setbase(int base);
  template<class CharT> /*unspecified*/ setfill(CharT c);
  /*unspecified*/ setprecision(int n);
  /*unspecified*/ setw(int n);
  template<class MoneyT> /*unspecified*/ get_money(MoneyT& mon, bool intl = false);
  template<class MoneyT> /*unspecified*/ put_money(const MoneyT& mon, bool intl = false);
  template<class CharT> /*unspecified*/ get_time(tm* tmb, const CharT* fmt);
  template<class CharT> /*unspecified*/ put_time(const tm* tmb, const CharT* fmt);
 
  template<class CharT>
    /*unspecified*/ quoted(const CharT* s, CharT delim = CharT('"'),
                           CharT escape = CharT('\\'));
 
  template<class CharT, class Traits, class Allocator>
    /*unspecified*/ quoted(const basic_string<CharT, Traits, Allocator>& s,
               CharT delim = CharT('"'), CharT escape = CharT('\\'));
 
  template<class CharT, class Traits, class Allocator>
    /*unspecified*/ quoted(basic_string<CharT, Traits, Allocator>& s,
               CharT delim = CharT('"'), CharT escape = CharT('\\'));
 
  template<class CharT, class Traits>
    /*unspecified*/ quoted(basic_string_view<CharT, Traits> s,
               CharT delim = CharT('"'), CharT escape = CharT('\\'));
}