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X-ME-Date:	Thu, 05 Oct 2017 21:09:52 +0200
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Subject:	Re: a few tar.xz packages are bigger than their uncompressed tar
To:	cygwin AT cygwin DOT com
References:	<cc1a2cd5-a947-624e-4473-73151794a5d7 AT laposte DOT net> <960ca9df83cf80f4321a69f2d8b8c0ba AT mail DOT kylheku DOT com>
From:	=?UTF-8?B?SsOpcsO0bWUgQm91YXQ=?= <jerome DOT bouat AT laposte DOT net>
Message-ID:	<bccf9bcd-afa8-2829-a9be-5b0586484433@laposte.net>
Date:	Thu, 5 Oct 2017 21:09:51 +0200
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In-Reply-To:	<960ca9df83cf80f4321a69f2d8b8c0ba@mail.kylheku.com>

Hello

> No compression method need ever increase the
> size of the datum by more than one bit.
> 
> The compressed representation can begin with a header
> bit which is 1 to indicate "compressed" and 0 to indicate
> "stored without compression".

Does the xz format provide a checksum even if the file is stored without compression ?

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