[ANN] core.rrb-vector 0.1.0 -- bug fixes

[Andy Fingerhut]

I am pleased to announce the 0.1.0 release of core.rrb-vector, a Clojure Contrib library extending the Clojure vector API with logarithmic-time concatenation and slicing:

  https://github.com/clojure/core.rrb-vector

  [org.clojure/core.rrb-vector "0.1.0"]

  <dependency>
    <groupId>org.clojure</groupId>
    <artifactId>core.rrb-vector</artifactId>
    <version>0.1.0</version>
  </dependency>

This release fixes several bugs that were found in previous releases of the library.  More details can be found in the change log:

  https://github.com/clojure/core.rrb-vector/blob/master/CHANGES.md

Cheers,
Michał Marczyk and Andy Fingerhut

[Terje Dahl]

Nice list of fixes. Great work!

I use Vector as my text editor's char-buffer. 

I believe I have seen one or more of the fixed bugs surface, so I am upgrading immediately. :-D

Terje 

[Andy Fingerhut]

Excellent!  Please do file additional reports if you find any issues with the latest version.

Andy

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[Andy Fingerhut]

Also, maybe you are doing this already, but note that you can save significant memory in Clojure and core.rrb-vector by using (vector-of :char ...) to create vectors that are restricted to contain only char's, if that is all you want to hold inside of them.  It is about a 3x more memory if you use a normal Clojure vector of arbitrary Object's because of the boxing of Character objects.  Same for :long and other vectors of primitives.

Andy

[Terje Dahl]

Thanks.  Yes, I already do that.

And then implementing java.lang.CharSequence (for regex searches) or a reader is dead easy.

Also, because altered states of the rrb-vector share structure, maintaining a history (for UNDO/REDO) in a memory-efficient manner is simply a matter of holding on to references to the rrb-vector.  

:-)

Terje

On Wednesday, October 2, 2019 at 3:53:13 PM UTC+2, Andy Fingerhut wrote:

Also, maybe you are doing this already, but note that you can save significant memory in Clojure and core.rrb-vector by using (vector-of :char ...) to create vectors that are restricted to contain only char's, if that is all you want to hold inside of them.  It is about a 3x more memory if you use a normal Clojure vector of arbitrary Object's because of the boxing of Character objects.  Same for :long and other vectors of primitives.

Andy

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