Move cXXXr and cXXXXr to subr.el

* etc/NEWS: Mention new core Elisp.
* doc/lispref/lists.texi (List Elements): Document and index the new
functions.
* doc/misc/cl.texi (List Functions): Change "defines" to "aliases".
* lisp/subr.el (caaar, caadr, cadar, caddr, cdaar, cdadr, cddar)
(cdddr, caaaar caaadr, caadar, caaddr, cadaar, cadadr, caddar):
(cadddr, cdaaar, cdaadr, cdadar, cdaddr, cddaar, cddadr, cdddar):
(cddddr): New functions.
* lisp/emacs-lisp/cl-lib.el (cl-caaar, cl-caadr, cl-cadar, cl-caddr):
(cl-cdaar, cl-cdadr, cl-cddar cl-cdddr, cl-caaaar cl-caaadr):
(cl-caadar, cl-caaddr, cl-cadaar, cl-cadadr, cl-caddar, cl-cadddr):
(cl-cdaaar, cl-cdaadr, cl-cdadar, cl-cdaddr, cl-cddaar, cl-cddadr):
(cl-cdddar, cl-cddddr): Alias to new subr functions.
* lisp/emacs-lisp/cl.el (cl-unload-function): Remove cXXXr and cXXXXr
elements.

1 files changed, 120 insertions, 0 deletions

diff --git a/lisp/subr.el b/lisp/subr.el
index 53774169b42..a6ba05c2021 100644
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -384,6 +384,126 @@ configuration."
   (declare (compiler-macro internal--compiler-macro-cXXr))
   (cdr (cdr x)))
 
+(defun caaar (x)
+  "Return the `car' of the `car' of the `car' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (car (car (car x))))
+
+(defun caadr (x)
+  "Return the `car' of the `car' of the `cdr' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (car (car (cdr x))))
+
+(defun cadar (x)
+  "Return the `car' of the `cdr' of the `car' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (car (cdr (car x))))
+
+(defun caddr (x)
+  "Return the `car' of the `cdr' of the `cdr' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (car (cdr (cdr x))))
+
+(defun cdaar (x)
+  "Return the `cdr' of the `car' of the `car' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (cdr (car (car x))))
+
+(defun cdadr (x)
+  "Return the `cdr' of the `car' of the `cdr' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (cdr (car (cdr x))))
+
+(defun cddar (x)
+  "Return the `cdr' of the `cdr' of the `car' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (cdr (cdr (car x))))
+
+(defun cdddr (x)
+  "Return the `cdr' of the `cdr' of the `cdr' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (cdr (cdr (cdr x))))
+
+(defun caaaar (x)
+  "Return the `car' of the `car' of the `car' of the `car' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (car (car (car (car x)))))
+
+(defun caaadr (x)
+  "Return the `car' of the `car' of the `car' of the `cdr' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (car (car (car (cdr x)))))
+
+(defun caadar (x)
+  "Return the `car' of the `car' of the `cdr' of the `car' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (car (car (cdr (car x)))))
+
+(defun caaddr (x)
+  "Return the `car' of the `car' of the `cdr' of the `cdr' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (car (car (cdr (cdr x)))))
+
+(defun cadaar (x)
+  "Return the `car' of the `cdr' of the `car' of the `car' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (car (cdr (car (car x)))))
+
+(defun cadadr (x)
+  "Return the `car' of the `cdr' of the `car' of the `cdr' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (car (cdr (car (cdr x)))))
+
+(defun caddar (x)
+  "Return the `car' of the `cdr' of the `cdr' of the `car' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (car (cdr (cdr (car x)))))
+
+(defun cadddr (x)
+  "Return the `car' of the `cdr' of the `cdr' of the `cdr' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (car (cdr (cdr (cdr x)))))
+
+(defun cdaaar (x)
+  "Return the `cdr' of the `car' of the `car' of the `car' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (cdr (car (car (car x)))))
+
+(defun cdaadr (x)
+  "Return the `cdr' of the `car' of the `car' of the `cdr' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (cdr (car (car (cdr x)))))
+
+(defun cdadar (x)
+  "Return the `cdr' of the `car' of the `cdr' of the `car' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (cdr (car (cdr (car x)))))
+
+(defun cdaddr (x)
+  "Return the `cdr' of the `car' of the `cdr' of the `cdr' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (cdr (car (cdr (cdr x)))))
+
+(defun cddaar (x)
+  "Return the `cdr' of the `cdr' of the `car' of the `car' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (cdr (cdr (car (car x)))))
+
+(defun cddadr (x)
+  "Return the `cdr' of the `cdr' of the `car' of the `cdr' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (cdr (cdr (car (cdr x)))))
+
+(defun cdddar (x)
+  "Return the `cdr' of the `cdr' of the `cdr' of the `car' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (cdr (cdr (cdr (car x)))))
+
+(defun cddddr (x)
+  "Return the `cdr' of the `cdr' of the `cdr' of the `cdr' of X."
+  (declare (compiler-macro internal--compiler-macro-cXXr))
+  (cdr (cdr (cdr (cdr x)))))
+
 (defun last (list &optional n)
   "Return the last link of LIST.  Its car is the last element.
 If LIST is nil, return nil.