42 lines
1.4 KiB
Scheme
42 lines
1.4 KiB
Scheme
;;; Gash -- Guile As SHell
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;;; Copyright © 2019 Timothy Sample <samplet@ngyro.com>
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;;;
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;;; This file is part of Gash.
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;;;
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;;; Gash is free software: you can redistribute it and/or modify
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;;; it 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
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;;; (at your option) any later version.
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;;;
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;;; Gash is distributed in the hope that it will be useful,
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;;; but 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 Gash. If not, see <http://www.gnu.org/licenses/>.
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(define-module (gash compat srfi-43)
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#:use-module (gash compat))
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;;; Commentary:
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;;;
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;;; The '(srfi srfi-43)' module was introduced into Guile in version
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;;; 2.0.10, so we provide a shim.
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;;;
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;;; Code:
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(if-guile-version-below (2 0 10)
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(begin
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(define-public (vector-empty? vec)
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(zero? (vector-length vec)))
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;; We only need the single vector version.
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(define-public (vector-every pred? vec)
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(let loop ((i 0) (value #t))
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(if (< i (vector-length vec))
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(and value (loop (1+ i) (pred? (vector-ref vec i))))
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value))))
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(begin
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(use-modules (srfi srfi-43))
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(re-export vector-empty? vector-every)))
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