Rusty Russell's Coding Blog | Stealing From Smart People

Aug/10

12

Bob Jenkins and lookup8.c

I pulled Bob Jenkins’ superlative lookup3.c into ccan some time ago, and with the work on TDB2 (aka 64-bit TDB) I wondered if there was a 64-bit variant available.  I didn’t look hard enough: I should have checked his top-level page and seen lookup8.c before wasting his time with an email :(

I did note in my mail that since lookup3.c can return a pair of 32 bit numbers, I could combine those to get a 64 bit hash “but I wondered if it was possible to do better…”

His one-line reply was that he was working on a 128-bit hash now.  Respectful and informative.

The gold standard test of online manners is how you respond to a dumb random email.  A truly gracious gentleman/lady will respond as if you are far smarter far than you appear.  Thanks Bob.  And 128-bit; I’m a little stunned…

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