diff options
Diffstat (limited to 'lisp/subr.el')
| -rw-r--r-- | lisp/subr.el | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lisp/subr.el b/lisp/subr.el index bf3716bbd37..f68f9dd4191 100644 --- a/lisp/subr.el +++ b/lisp/subr.el @@ -580,6 +580,7 @@ i.e., subtract 2 * most-negative-fixnum from VALUE before shifting it." If LIST is nil, return nil. If N is non-nil, return the Nth-to-last link of LIST. If N is bigger than the length of LIST, return LIST." + (declare (side-effect-free t)) (if n (and (>= n 0) (let ((m (safe-length list))) @@ -591,6 +592,7 @@ If N is bigger than the length of LIST, return LIST." "Return a copy of LIST with the last N elements removed. If N is omitted or nil, the last element is removed from the copy." + (declare (side-effect-free t)) (if (and n (<= n 0)) list (nbutlast (copy-sequence list) n))) @@ -726,6 +728,7 @@ If that is non-nil, the element matches; then `assoc-default' If no element matches, the value is nil. If TEST is omitted or nil, `equal' is used." + (declare (side-effect-free t)) (let (found (tail alist) value) (while (and tail (not found)) (let ((elt (car tail))) @@ -739,6 +742,7 @@ If TEST is omitted or nil, `equal' is used." ELT must be a string. Upper-case and lower-case letters are treated as equal. Unibyte strings are converted to multibyte for comparison. Non-strings in LIST are ignored." + (declare (side-effect-free t)) (while (and list (not (and (stringp (car list)) (eq t (compare-strings elt 0 nil (car list) 0 nil t))))) @@ -822,6 +826,7 @@ Example: (defun remove (elt seq) "Return a copy of SEQ with all occurrences of ELT removed. SEQ must be a list, vector, or string. The comparison is done with `equal'." + (declare (side-effect-free t)) (if (nlistp seq) ;; If SEQ isn't a list, there's no need to copy SEQ because ;; `delete' will return a new object. @@ -832,6 +837,7 @@ SEQ must be a list, vector, or string. The comparison is done with `equal'." "Return LIST with all occurrences of ELT removed. The comparison is done with `eq'. Contrary to `delq', this does not use side-effects, and the argument LIST is not modified." + (declare (side-effect-free t)) (while (and (eq elt (car list)) (setq list (cdr list)))) (if (memq elt list) (delq elt (copy-sequence list)) @@ -3898,6 +3904,7 @@ Zero means the entire text matched by the whole regexp or whole string. STRING should be given if the last search was by `string-match' on STRING. If STRING is nil, the current buffer should be the same buffer the search/match was performed in." + (declare (side-effect-free t)) (if (match-beginning num) (if string (substring string (match-beginning num) (match-end num)) @@ -3911,6 +3918,7 @@ Zero means the entire text matched by the whole regexp or whole string. STRING should be given if the last search was by `string-match' on STRING. If STRING is nil, the current buffer should be the same buffer the search/match was performed in." + (declare (side-effect-free t)) (if (match-beginning num) (if string (substring-no-properties string (match-beginning num) |