mes/module/srfi/srfi-43.mes
Jan Nieuwenhuizen 3330948a90
core: Optimize vector-map, vector-for-each.
* module/srfi/srfi-43.mes (vector-map): Optimize.
  (vector-for-each): Optimize.
* tests/srfi-43.test: New file.
* tests/srfi-43.test-guile: New file.
* check.sh (tests): Add it.
* make.scm (mes-tests): Add it.
2018-04-20 13:06:00 +02:00

43 lines
1.3 KiB
Scheme

;;; -*-scheme-*-
;;; Mes --- Maxwell Equations of Software
;;; Copyright © 2016,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of Mes.
;;;
;;; Mes 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.
;;;
;;; Mes 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 Mes. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Minimal implementation of srfi-43, for nyacc.
;;; Code:
(define (vector-map f v)
(let* ((k (vector-length v))
(n (core:make-vector k)))
(let loop ((i 0))
(if (= i k) n
(begin
(vector-set! n i (f i (vector-ref v i)))
(loop (+ i 1)))))))
(define (vector-for-each f v)
(let ((k (vector-length v)))
(let loop ((i 0))
(if (< i k)
(begin
(f i (vector-ref v i))
(loop (+ i 1)))))))