Specialized Ctype Members

Specialized
 ctype<char> and
 ctype<wchar_t> member functions.
 bool is(mask m, char c) const;

const char* is(const char* low, const char* high,

mask* vec) const;

 const char* scan_is(mask m,

const char* low, const char* high) const;

 const char* scan_not(mask m,

const char* low, const char* high) const;

 char toupper(char c) const;

const char* toupper(char* low, const char* high) const;

 char tolower(char c) const;

const char* tolower(char* low, const char* high) const;

 char widen(char c) const;

const char* widen(const char* low, const char* high,

char* to) const;

 char narrow(char c, char /*dfault*/) const;

const char* narrow(const char* low, const char* high,

char /*dfault*/, char* to) const;

const mask* table() const throw();