scan2(expect1, expect2, tokp) tok_kind expect1; tok_kind expect2; token *tokp;
scan2(tok_kind expect1, tok_kind expect2, token *tokp)
scan2(expect1, expect2, tokp)	tok_kind expect1;	tok_kind expect2;	token *tokp;{	get_token(tokp);	if (tokp->kind != expect1 && tokp->kind != expect2) {		expected2(expect1, expect2);	}}