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| | ;; -*- lexical-binding: t; -*-
;; Copyright (C) 2019 Free Software Foundation, Inc.
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Adapted to elisp from CL version from:
;; https://drmeister.wordpress.com/2015/07/30/timing-data-comparing-cclasp-to-c-sbcl-and-python/
(defun elb-fibn (reps num)
(let ((z 0))
(dotimes (_ reps)
(let ((p1 1)
(p2 1))
(dotimes (_ (- num 2))
(setf z (+ p1 p2)
p2 p1
p1 z))))
z))
(defun elb-fibn-entry ()
;; Use 80 to stay in the fixnum range.
(elb-fibn 3000000 80))
(provide 'elb-fibn)
|