t_flushc
ltc_temp.t_rprntc = ltc_temp.t_flushc = -1;
*valp = termbuf.ltc.t_flushc;
*valpp = (cc_t *)&termbuf.ltc.t_flushc;
# define termFlushChar nltc.t_flushc
# define termFlushCharp (cc_t *)&nltc.t_flushc
wwnewtty.ww_ltchars.t_flushc = -1;