_bufend
_bufsync(iop, _bufend(iop));
iop->_cnt = _bufend(iop) - iop->_base;
bufferend = _bufend(iop);
bufferend = _bufend(iop);
bufferend = _bufend(iop);
size = _bufend(stream) - stream->_base;
endbuf = _bufend(iop);
if (iop->_ptr >= _bufend(iop))
iop->_cnt = _bufend(iop) - iop->_ptr;
bufend = _bufend(iop);
bufend = _bufend(iop);
bufend = _bufend(iop);
bufend = _bufend(iop);
bufend = _bufend(stdin);
bufend = _bufend(stdout);
_bufsync(iop, _bufend(iop));
: _bufend(iop);