shigemk2 https://blog.hatena.ne.jp/shigemk2/ by shigemk2 https://www.shigemk2.com/ Emacs Lisp fletを使う (defun f (x) (* x 2)) (defun g (x) (f x)) (defun i (x) (h x)) (f 9) ; => 18 (g 9) ; => 18 (flet ((f (x) (1+ x)) (h (x) (* 10 x))) (f 9) ; => 10 ;; gの内部でfを呼ぶ (g 9) ; => 10 ;; iの内部でhを呼ぶ (ignore-errors (i 4)) ; => 40 ) (defun f (x) (* 2 x)) (f 10) ; => 20 ;; fを1+に置き換える (letf (((symbol-function … 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.shigemk2.com%2Fentry%2F20120424%2F1335204211" title="一時的な関数再定義 - by shigemk2" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> http://ecx.images-amazon.com/images/I/51Wg39T8KAL.jpg Hatena Blog https://hatena.blog 2012-04-24 03:03:31 rich https://www.shigemk2.com/entry/20120424/1335204211 1.0 100%