GNU bug report logs - #14863
bitwise-bit-count is wrong for negative arguments

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Package: guile;

Reported by: Göran Weinholt <goran <at> weinholt.se>

Date: Sun, 14 Jul 2013 15:45:02 UTC

Severity: normal

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

Bug is archived. No further changes may be made.

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From: Göran Weinholt <goran <at> weinholt.se>
To: 14863 <at> debbugs.gnu.org
Subject: bug#14863: bitwise-bit-count is wrong for negative arguments
Date: Sun, 14 Jul 2013 17:19:07 +0200

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Hello schemers,

the bitwise-bit-count procedure from (rnrs) is wrong for negative
arguments in Guile 2.0.9:

scheme@(guile-user)> (import (rnrs))
scheme@(guile-user)> (bitwise-bit-count #b-101)
$1 = 1

The correct result is -2.

Regards,

-- 
Göran Weinholt <goran <at> weinholt.se>
13             MR. JAKES:  I think our economy was based on
14 industrial process.
15             JUSTICE SCALIA:  It was based on horses, for
16 Pete's sake.

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This bug report was last modified 12 years and 6 days ago.

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