[toronto-lisp] March meeting minutes.

Vishvajit Singh vishvajitsingh at gmail.com
Wed Mar 10 01:11:26 UTC 2010

Thanks Doug! git fsck appears to do exactly what I wanted. All praise
to Torvalds and Git.

Abram's particular problem, I believe, was in copying multidimensional
arrays. He ended up writing his own function to copy his Tron game

This seems to be a known "hole" in the Common Lisp spec.. e.g. a
library called cl-utilities provides a function called COPY-ARRAY:


The library bills itself as "things that everybody writes since
they're not part of the official standard".

- vish

On Tue, Mar 9, 2010 at 6:13 PM,  <doug at hcsw.org> wrote:
> On Sat, Mar 06, 2010 at 07:14:00PM -0500 or thereabouts, Vishvajit Singh wrote:
>> I put up what I can remember of the March meeting on our website:
>> http://www.lisptoronto.org/past-meetings/2010-03-meeting
>> (I also put up Abram's notes from February.)
> - Abram: Common Lisp doesn't have a function to copy an array?
> Copy-seq works on arrays because arrays are sequences. Note that there is a
> special copy-list function which does a deep copy of the list (as opposed to
> the shallow copy done by copy-seq). There are lots of different notions of
> copying, just like there are lots of different types of equality.
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