> On 13 Sep 2019, at 00:38, Greg Ewing <greg.ew...@canterbury.ac.nz> wrote:
> Yury Selivanov wrote:
>> A *persistent data structure* is defined as a data structure that
>> preserves the previous version of the data when the data is modified.
>> Such data structures are effectively *immutable*, as operations on
>> them do not update the structure in-place, but instead always yield
>> a new updated structure (see [0]_ for more details.)
> You might want to find another term for this -- it's very different
> from what "persistent data structure" usually means (i.e. something
> that gets saved to a file or database with some degree of
> automagicness).

Unfortunately this is actually the correct terminology from all existing 
literature! :(

/ Anders
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