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Re: "The starting list count" ?????


From: Alan Mackenzie
Subject: Re: "The starting list count" ?????
Date: Mon, 3 Jan 2022 19:55:12 +0000

Hello, Andreas.

On Mon, Jan 03, 2022 at 20:50:05 +0100, Andreas Schwab wrote:
> On Jan 03 2022, Alan Mackenzie wrote:

> > I might have understood it now.  I think (1 . #1) refers to:

> This is a single cons.

Yes.  It is surely nonsensical, since it is referring to #1 in a list
structure with only one element.

> >                        -----------------    ---
> >                        |               |    | |
> >                        |               v    v |
> > -----------------------+--------     ---------+-----------------------  
> > |               |      |       |     |        |       |              |      
> > |               |      |       |     |        |       |              |
> > |           |      |       |     |        |       |              |
> > |      1    |      |       |     |        |       |     nil      |
> > |           |              |     |                |              |
> > |           |              |     |                |              |
> > |           |              |     |                |              |
> > --------------------------------     ---------------------------------

> This is a picture of two conses, which prints as (1 #1).

> -- 
> Andreas Schwab, schwab@linux-m68k.org
> GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
> "And now for something completely different."

-- 
Alan Mackenzie (Nuremberg, Germany).



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