[danidiaz]

> Consis­tent with my loyalty to the func­tional-program­ming idiom, I designed my initial bf imple­men­ta­tion so that each instruc­tion would copy the existing bytes into a new array, change the byte of interest, return this new byte array, and abandon the old array (which would even­tu­ally be garbage-collected).

This would be a fun task to attempt with the new linear features of Haskell https://hackage.haskell.org/package/linear-base-0.1.0/docs/D...