Function db_add_expr

freebsd/ddb/db_expr.c:205–240

}

static bool
db_add_expr(db_expr_t *valuep)
{
	db_expr_t	lhs, rhs;
	int		t;

	if (!db_mult_expr(&lhs))
	    return (false);

	t = db_read_token();
	while (t == tPLUS || t == tMINUS || t == tBIT_OR) {
	    if (!db_mult_expr(&rhs)) {
		db_printf("Expression syntax error after '%c'\n",
		    t == tPLUS ? '+' : t == tMINUS ? '-' : '|');
		db_error(NULL);
		/*NOTREACHED*/
	    }
	    switch (t) {
	    case tPLUS:
		lhs += rhs;
		break;
	    case tMINUS:
		lhs -= rhs;
		break;
	    case tBIT_OR:
		lhs |= rhs;
		break;
	    default:
		__assert_unreachable();
	    }
	    t = db_read_token();
	}
	db_unread_token(t);
	*valuep = lhs;
	return (true);
}

static bool
db_shift_expr(db_expr_t *valuep)