this post was submitted on 06 Sep 2025
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Programmer Humor

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Did you ever saw a char and thought: "Damn, 1 byte for a single char is pretty darn inefficient"? No? Well I did. So what I decided to do instead is to pack 5 chars, convert each char to a 2 digit integer and then concat those 5 2 digit ints together into one big unsigned int and boom, I saved 5 chars using only 4 instead of 5 bytes. The reason this works is, because one unsigned int is a ten digit long number and so I can save one char using 2 digits. In theory you could save 32 different chars using this technique (the first two digits of an unsigned int are 42 and if you dont want to account for a possible 0 in the beginning you end up with 32 chars). If you would decide to use all 10 digits you could save exactly 3 chars. Why should anyone do that? Idk. Is it way to much work to be useful? Yes. Was it funny? Yes.

Anyone whos interested in the code: Heres how I did it in C: https://pastebin.com/hDeHijX6

Yes I know, the code is probably bad, but I do not care. It was just a funny useless idea I had.

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[–] bacon_pdp@lemmy.world 97 points 2 days ago (9 children)
[–] cows_are_underrated@feddit.org 35 points 2 days ago (6 children)

Did not knew that this existed, but yeah its kinda like that. Except that I only allow 5 characters.

[–] solidgrue@lemmy.world 8 points 2 days ago (2 children)
[–] sukhmel@programming.dev 2 points 2 days ago* (last edited 2 days ago)

Funny how they have a typo in test vectors:

0x0000 -> babab

0xFFFF -> zvzuz

0x1234 -> damuh

0xF00D -> zabat

0xBEEF -> ruroz

[–] BatmanAoD@programming.dev 2 points 2 days ago (1 children)

This is hilarious. I'm not sure how often anyone would actually need to verbalize arbitrary binary data, but I do see an advantage over base64 since the English letter names are so often phonetically similar.

[–] solidgrue@lemmy.world 1 points 1 day ago

The FAA/ICAO use a similar system to name aerial navigation and fixed GPS waypoints. It addresses the challenge of communicating identifiers of unique nodes in a vast network using VHF communications.

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