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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.lang.c
Subject: Re: "A diagram of C23 basic types"
Date: Mon, 14 Apr 2025 04:33:32 -0000 (UTC)
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On Mon, 7 Apr 2025 21:49:02 +0200, Janis Papanagnou wrote:

> A better unit is, IMO, a second resolution (which at least is a basic
> physical unit) and a separate integer for sub-seconds.

I worked out that an integer of a little over 200 bits is sufficient to 
represent the age of the known Universe in units of the Planck interval 
(5.39e-44 seconds). Therefore, rounding to something more even, 256 bits 
should be more than enough to measure any physically conceivable time down 
to that resolution.