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Fix bytevector-copy when applied to SRFI-4 homogeneous numeric vectors.

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Fixes <http://bugs.gnu.org/18866>.
Reported by tantalum <sph@posteo.eu>.

* libguile/bytevectors.c (scm_bytevector_copy): Always create a VU8
  bytevector.

* test-suite/tests/bytevectors.test: Add test.
This commit is contained in:
Mark H Weaver 2014-11-11 23:14:26 -05:00
parent 03242f398f
commit 10679f4c59
2 changed files with 14 additions and 5 deletions
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4
libguile/bytevectors.c
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@ -1,4 +1,4 @@
/* Copyright (C) 2009, 2010, 2011, 2012, 2014 Free Software Foundation, Inc.
/* Copyright (C) 2009-2014 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
@ -606,7 +606,7 @@ SCM_DEFINE (scm_bytevector_copy, "bytevector-copy", 1, 0, 0,
c_len = SCM_BYTEVECTOR_LENGTH (bv);
c_bv = SCM_BYTEVECTOR_CONTENTS (bv);
copy = make_bytevector (c_len, SCM_BYTEVECTOR_ELEMENT_TYPE (bv));
copy = make_bytevector (c_len, SCM_ARRAY_ELEMENT_TYPE_VU8);
c_copy = SCM_BYTEVECTOR_CONTENTS (copy);
memcpy (c_copy, c_bv, c_len);

15
test-suite/tests/bytevectors.test
View file

@ -1,7 +1,6 @@
;;;; bytevectors.test --- R6RS bytevectors. -*- mode: scheme; coding: utf-8; -*-
;;;;
;;;; Copyright (C) 2009, 2010, 2011, 2012, 2013,
;;;; 2014 Free Software Foundation, Inc.
;;;; Copyright (C) 2009-2014 Free Software Foundation, Inc.
;;;;
;;;; Ludovic Courtès
;;;;
@ -22,7 +21,8 @@
(define-module (test-bytevector)
:use-module (test-suite lib)
:use-module (system base compile)
:use-module (rnrs bytevectors))
:use-module (rnrs bytevectors)
:use-module (srfi srfi-4))
;;; Some of the tests in here are examples taken from the R6RS Standard
;;; Libraries document.
@ -689,6 +689,15 @@
(let ((bv (uniform-array->bytevector (make-bitvector 9 #t))))
(= (bytevector-length bv) 2))))
(with-test-prefix "srfi-4 homogeneous numeric vectors as bytevectors"
;; This failed prior to Guile 2.0.12.
;; See <http://bugs.gnu.org/18866>.
(pass-if-equal "bytevector-copy on srfi-4 arrays"
(make-bytevector 8 #xFF)
(bytevector-copy (make-u32vector 2 #xFFFFFFFF))))
;;; Local Variables:
;;; eval: (put 'with-test-prefix/c&e 'scheme-indent-function 1)
;;; End: