vsscanf
extern int vsscanf(char const *str, char const *format, va_list ap);
extern int vsscanf(char const *str, char const *format, va_list ap);
return vsscanf(fPrivateData, format, args);
weak_alias (_IO_vsscanf, vsscanf)
extern int vsscanf (const char *__restrict __s,
extern int __REDIRECT_NTH (vsscanf,
int result = vsscanf(str, format, args);
return vsscanf(str, format, ap);