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bug#27177: 26.0.50: Macroexpanding cl-loop and friends (make-symbol usag

From: Michael Heerdegen
Subject: bug#27177: 26.0.50: Macroexpanding cl-loop and friends (make-symbol usage)
Date: Sat, 03 Jun 2017 01:09:01 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux)

Alex <address@hidden> writes:

> > AFAICT `print-circle' and `print-gensym' also control how `prin1'
> > prints.
> Does print-circle? Consider:
> (prin1 `(cons ,(make-symbol "hello")
>               ,(make-symbol "hello")))
> print-gensym certainly makes a difference in the output, but
> print-circle doesn't seem to.

There are no shared parts in your example expression, so it doesn't make
a difference in this particular case.

> However, I don't know how prin1 would keep track of the uninterned
> symbols across many different procedure calls, which it would need to do
> for it to know what is being shared.

It doesn't AFAICT.


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