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

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Package: guile;

Reported by: Tobias Brandt <tob.brandt <at> googlemail.com>

Date: Thu, 1 Mar 2012 14:59:01 UTC

Severity: normal

Done: Mark H Weaver <mhw <at> netris.org>

Bug is archived. No further changes may be made.

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Report forwarded to bug-guile <at> gnu.org:
bug#10918; Package guile. (Thu, 01 Mar 2012 14:59:01 GMT) Full text and rfc822 format available.
Acknowledgement sent to Tobias Brandt <tob.brandt <at> googlemail.com>:
New bug report received and forwarded. Copy sent to bug-guile <at> gnu.org. (Thu, 01 Mar 2012 14:59:01 GMT) Full text and rfc822 format available.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

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?
Reply sent to Mark H Weaver <mhw <at> netris.org>:
You have taken responsibility. (Thu, 01 Mar 2012 21:24:02 GMT) Full text and rfc822 format available.
Notification sent to Tobias Brandt <tob.brandt <at> googlemail.com>:
bug acknowledged by developer. (Thu, 01 Mar 2012 21:24:02 GMT) Full text and rfc822 format available.

Message #10 received at 10918-done <at> debbugs.gnu.org (full text, mbox):

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
bug archived. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Fri, 30 Mar 2012 11:24:02 GMT) Full text and rfc822 format available.
This bug report was last modified 13 years and 88 days ago.

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