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From: Douglas McIlroy <douglas.mcilroy@dartmouth.edu>
Date: Sun, 18 Jul 2021 16:07:53 -0400
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To: TUHS main list <tuhs@minnie.tuhs.org>, charles.unix.pro@gmail.com
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Subject: Re: [TUHS] head/sed/tail (was The Unix shell: a 50-year view)
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> For Multics C, ... NULL != 0

I know what you mean, but the formulation is paradoxical,
as the expression NULL==0 is always true in C :)

Doug