_doprnt
extern "C" { void _doprnt(char *, ...); }
_doprnt(format, ap, stderr);
extern int errno, _doprnt();
(void) _doprnt(fmt, ap, stderr);
_doprnt(const CHAR_T *format, va_list in_args, FILE *iop);
extern int _doprnt(char *format, va_list in_args, FILE *iop);
count = _doprnt((char *) format, ap, iop);
count = _doprnt((char *) format, ap, stdout);
(void) _doprnt((char *) format, ap, &siop);
count = _doprnt((char *) format, ap, iop);
return (_doprnt((char *) format, ap, stdout));
(void) _doprnt(format, ap, &siop);