namespace std {
class locale;
class ctype_base;
template<class E>
class ctype;
template<>
class ctype<char>;
template<class E>
class ctype_byname;
class codect_base;
template<class From, class To, class State>
class codecvt;
template<class From, class To, class State>
class codecvt_byname;
template<class E, class InIt>
class num_get;
template<class E, class OutIt>
class num_put;
template<class E>
class numpunct;
template<class E>
class numpunct_byname;
template<class E>
class collate;
template<class E>
class collate_byname;
class time_base;
template<class E, class InIt>
class time_get;
template<class E, class InIt>
class time_get_byname;
template<class E, class OutIt>
class time_put;
template<class E, class OutIt>
class time_put_byname;
class money_base;
template<class E, bool Intl, class InIt>
class money_get;
template<class E, bool Intl, class OutIt>
class money_put;
template<class E, bool Intl>
class moneypunct;
template<class E, bool Intl>
class moneypunct_byname;
class messages_base;
template<class E>
class messages;
template<class E>
class messages_byname;
// TEMPLATE FUNCTIONS
template<class Facet>
bool has_facet(const locale& loc);
template<class Facet>
const Facet& use_facet(const locale& loc);
template<class E>
bool isspace(E c, const locale& loc) const;
template<class E>
bool isprint(E c, const locale& loc) const;
template<class E>
bool iscntrl(E c, const locale& loc) const;
template<class E>
bool isupper(E c, const locale& loc) const;
template<class E>
bool islower(E c, const locale& loc) const;
template<class E>
bool isalpha(E c, const locale& loc) const;
template<class E>
bool isdigit(E c, const locale& loc) const;
template<class E>
bool ispunct(E c, const locale& loc) const;
template<class E>
bool isxdigit(E c, const locale& loc) const;
template<class E>
bool isalnum(E c, const locale& loc) const;
template<class E>
bool isgraph(E c, const locale& loc) const;
template<class E>
E toupper(E c, const locale& loc) const;
template<class E>
E tolower(E c, const locale& loc) const;
}