[issue23728] binascii.crc_hqx() can return negative integer

[Serhiy Storchaka]

New submission from Serhiy Storchaka:

zlib.adler32(), zlib.crc32(), and binascii.crc32() always return 32-bit unsigned integer in Python 3. binascii.crc_hqx() almost always returns 16-bit unsigned integer. But there is an exception. The result can negative only when arguments of binascii.crc_hqx() are empty bytes and negative integer. This looks as a bug and should be fixed. But may be no need to apply changes to maintained releases.

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components: Extension Modules
keywords: easy
messages: 238726
nosy: gregory.p.smith, serhiy.storchaka
priority: normal
severity: normal
stage: needs patch
status: open
title: binascii.crc_hqx() can return negative integer
type: behavior
versions: Python 3.5

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue23728>
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