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Re: make-vector documentation is wrong

From: Paul Eggert
Subject: Re: make-vector documentation is wrong
Date: Thu, 14 May 2020 19:46:09 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0

On 5/14/20 6:36 PM, Daniel Colascione wrote:
> We should fix either the docstring or the behavior
> of make-vector, and the latter seems better to me because it reduces the 
> number
> of special cases in the system.

That depends on how one counts special cases.

(make-string 0 0), (make-list 0 0), (vector), and (list) all have the property
that (make-vector 0 0) does - that is, each call returns the same empty object
each time. I imagine that make-vector was implemented to be consistent with the
other functions - at least, this behavior appears to be a conscious decision
rather than accidental. So it may make sense to change these functions'
documentation instead of their implementation's longstanding behavior.

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