__FILE
extern int __vfwscanf (__FILE *__restrict __s,
extern int __fwprintf (__FILE *__restrict __s,
extern int __vfwprintf (__FILE *__restrict __s,
extern int fwide (__FILE *__fp, int __mode) __THROW;
extern int fwprintf (__FILE *__restrict __stream,
extern int vfwprintf (__FILE *__restrict __s,
extern int fwscanf (__FILE *__restrict __stream,
extern int vfwscanf (__FILE *__restrict __s,
extern wint_t fgetwc (__FILE *__stream) __THROW;
extern wint_t getwc (__FILE *__stream) __THROW;
extern wint_t fputwc (wchar_t __wc, __FILE *__stream) __THROW;
extern wint_t putwc (wchar_t __wc, __FILE *__stream) __THROW;
__FILE *__restrict __stream) __THROW;
__FILE *__restrict __stream) __THROW;
extern wint_t ungetwc (wint_t __wc, __FILE *__stream) __THROW;
extern wint_t getwc_unlocked (__FILE *__stream) __THROW;
extern wint_t fgetwc_unlocked (__FILE *__stream) __THROW;
extern wint_t fputwc_unlocked (wchar_t __wc, __FILE *__stream) __THROW;
extern wint_t putwc_unlocked (wchar_t __wc, __FILE *__stream) __THROW;
__FILE *__restrict __stream) __THROW;
__FILE *__restrict __stream) __THROW;