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bug#25929: 25.2; map-delete doesn't delete permanently 1st alist elt
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From: |
Nicolas Petton |
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Subject: |
bug#25929: 25.2; map-delete doesn't delete permanently 1st alist elt |
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Date: |
Wed, 26 Apr 2017 09:58:10 +0200 |
Stefan Monnier <monnier@IRO.UMontreal.CA> writes:
> That's right. Or it could signal an error, if copying is considered to
> be "never the right thing to do".
If hash-tables were persistent data structures, I'd say that it would
definitely be the right thing to do.
I didn't implement map.el as a functional library because vectors and
hash-tables are not persistent.
Nico
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