memSset
extern void memSset(chtype *, chtype, int);
memSset(nacsmap, (chtype) '+', 0400);
memSset(&win->_y[counter][0], (chtype) ' ', ncols);
memSset((line_ptr = &_y[0][sx]), _TOPSIDE, endx);
memSset((line_ptr = &_y[endy][sx]), _BOTTOMSIDE, endx);
memSset(&win->_y[y][x], win->_bkgd, maxx - x);
memSset(fp, horch | win->_attrs, num_chars);