43 lines
1.3 KiB
Scheme
43 lines
1.3 KiB
Scheme
;;; -*-scheme-*-
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;;; GNU Mes --- Maxwell Equations of Software
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;;; Copyright © 2016,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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;;;
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;;; This file is part of GNU Mes.
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;;;
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;;; GNU Mes is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Mes is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Minimal implementation of srfi-43, for nyacc.
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;;; Code:
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(define (vector-map f v)
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(let* ((k (vector-length v))
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(n (make-vector k)))
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(let loop ((i 0))
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(if (= i k) n
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(begin
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(vector-set! n i (f i (vector-ref v i)))
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(loop (+ i 1)))))))
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(define (vector-for-each f v)
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(let ((k (vector-length v)))
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(let loop ((i 0))
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(if (< i k)
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(begin
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(f i (vector-ref v i))
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(loop (+ i 1)))))))
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