想问一下大牛们，elisp的函数如何实现引用传递?

[cireu]

elisp就是pass by ref，甚至因此藏有一些陷阱

定义二维数组的陷阱

如果 make-vector 第二个参数是 object 的话，就是指针赋值了： DEFUN ("make-vector", Fmake_vector, Smake_vector, 2, 2, 0, doc: /* Return a newly created vector of length LENGTH, with each element being INIT. See also the function `vector'. */) (Lisp_Object length, Lisp_Object init) { CHECK_NATNUM (length); struct Lisp_Vector *p = allocate_vector (XFASTINT (length)); for (ptrdiff_t i = 0; i < XFASTINT (length); i++) p->contents[i] = init; return make_lisp_ptr (p, Lisp_Vectorlike); } 所以不管几维，修改的…