mvwinch
mvwinch(WINDOW *win, int y, int x)
#define mvwinch(w,y,x) (wmove(w,y,x)?ERR:winch(w))
#define mvwinch(w, y, x) \
#undef mvwinch
mvwinch(WINDOW *w, int y, int x)
#define mvwinch(win, y, x) VOID(wmove(win, y, x) == ERR ? ERR : winch(win))