diff options
| -rw-r--r-- | lisp/emacs-lisp/byte-opt.el | 3 | ||||
| -rw-r--r-- | lisp/subr.el | 5 |
2 files changed, 7 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/byte-opt.el b/lisp/emacs-lisp/byte-opt.el index 33d49647638..44cca6136c0 100644 --- a/lisp/emacs-lisp/byte-opt.el +++ b/lisp/emacs-lisp/byte-opt.el @@ -879,7 +879,8 @@ (put 'symbolp 'byte-optimizer 'byte-optimize-predicate) (put 'stringp 'byte-optimizer 'byte-optimize-predicate) (put 'string< 'byte-optimizer 'byte-optimize-predicate) -(put 'string-lessp 'byte-optimizer 'byte-optimize-predicate) +(put 'string-lessp 'byte-optimizer 'byte-optimize-predicate) +(put 'proper-list-p 'byte-optimizer 'byte-optimize-predicate) (put 'logand 'byte-optimizer 'byte-optimize-predicate) (put 'logior 'byte-optimizer 'byte-optimize-predicate) diff --git a/lisp/subr.el b/lisp/subr.el index bdf98979c49..bf3716bbd37 100644 --- a/lisp/subr.el +++ b/lisp/subr.el @@ -604,6 +604,11 @@ If N is omitted or nil, remove the last element." (if (> n 0) (setcdr (nthcdr (- (1- m) n) list) nil)) list)))) +;; The function's definition was moved to fns.c, +;; but it's easier to set properties here. +(put 'proper-list-p 'pure t) +(put 'proper-list-p 'side-effect-free 'error-free) + (defun delete-dups (list) "Destructively remove `equal' duplicates from LIST. Store the result in LIST and return it. LIST must be a proper list. |