GNU bug report logs - #10918
srfi-4 functions return wrong length for bytevectors

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Mark H Weaver <mhw <at> netris.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#10918: closed (srfi-4 functions return wrong length for
 bytevectors)
Date: Thu, 01 Mar 2012 21:24:02 +0000

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Your message dated Thu, 01 Mar 2012 16:20:28 -0500
with message-id <87pqcw10ir.fsf <at> netris.org>
and subject line Re: bug#10918: srfi-4 functions return wrong length for bytevectors
has caused the debbugs.gnu.org bug report #10918,
regarding srfi-4 functions return wrong length for bytevectors
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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10918: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=10918
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From: Tobias Brandt <tob.brandt <at> googlemail.com>
To: bug-guile <at> gnu.org
Subject: srfi-4 functions return wrong length for bytevectors
Date: Thu, 1 Mar 2012 15:56:54 +0100

Applying any of the f/u/s*vector-length functions to
a bytevector returns the wrong size. Specifically they
multiply (instead of dividing) the size of the bytevector
by the size of one element.

scheme@(guile-user)> (use-modules (rnrs bytevectors))
scheme@(guile-user)> (define bv (make-bytevector 4))
scheme@(guile-user)> (bytevector-length bv)
$1 = 4
scheme@(guile-user)> (f32vector-length bv)
$2 = 16

I believe $2 should be 1, or am I interpreting the
documentation wrong?

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From: Mark H Weaver <mhw <at> netris.org>
To: Tobias Brandt <tob.brandt <at> googlemail.com>
Cc: 10918-done <at> debbugs.gnu.org
Subject: Re: bug#10918: srfi-4 functions return wrong length for bytevectors
Date: Thu, 01 Mar 2012 16:20:28 -0500

Tobias Brandt <tob.brandt <at> googlemail.com> writes:

> Applying any of the f/u/s*vector-length functions to
> a bytevector returns the wrong size. Specifically they
> multiply (instead of dividing) the size of the bytevector
> by the size of one element.
>
> scheme@(guile-user)> (use-modules (rnrs bytevectors))
> scheme@(guile-user)> (define bv (make-bytevector 4))
> scheme@(guile-user)> (bytevector-length bv)
> $1 = 4
> scheme@(guile-user)> (f32vector-length bv)
> $2 = 16

Fixed in ef405f8ba73fc57706d7155a2e008352416debcf.
Thanks for the bug report! :)

     Mark

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