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# Turbo Bindat
Stefan Monnier

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# Table of Contents



Bindat is an ELisp library to help manipulate binary data. This is a
niche library that is used by packages such as Websocket, EMMS, and
cpio-mode. Its implementation was repeatedly caught harassing hapless
kitten while at the same time providing poor service slowly. For
Emacs-28, Bindat was rewritten so as to make it more efficient and
flexible while respecting the kitten. In this presentation I intent to
show how we saved those. Not recommended for birds.

# Discussion

- I *hope* cl-loop is more efficient than building a bunch of intermediate lists when you chain map/filter/reduce operations.


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