_IO_SYSSEEK
{ return _IO_SYSSEEK (this, off, dir); }
result = _IO_SYSSEEK (fp, 0, _IO_seek_cur);
result = _IO_SYSSEEK (fp, new_offset, 0);
result = _IO_SYSSEEK (fp, offset, dir);
_IO_SYSSEEK (fp, fp->_offset, 0);
result = _IO_SYSSEEK (fp, offset, 0);
_IO_off64_t result = _IO_SYSSEEK (fp, offset, dir);
_IO_off64_t new_pos = _IO_SYSSEEK (fp, 0, _IO_seek_end);
= _IO_SYSSEEK (fp, fp->_IO_write_base - fp->_IO_read_end, 1);
_IO_off64_t new_pos = _IO_SYSSEEK (fp, delta, 1);
result = _IO_SYSSEEK (fp, 0, _IO_seek_end);
_IO_off64_t new_pos = _IO_SYSSEEK (&new_f->fp.file, 0, _IO_seek_end);
new_pos = _IO_SYSSEEK (fp, delta, 1);
result = _IO_SYSSEEK (fp, 0, _IO_seek_end);
result = _IO_SYSSEEK (fp, 0, _IO_seek_cur);
result = _IO_SYSSEEK (fp, new_offset, 0);
result = _IO_SYSSEEK (fp, offset, dir);
_IO_SYSSEEK (fp, fp->_offset, 0);