this post was submitted on 15 Nov 2023
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Programmer Humor

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submitted 2 years ago by mac@programming.dev to c/programmer_humor@programming.dev
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[โ€“] dannym@lemmy.escapebigtech.info 3 points 2 years ago* (last edited 2 years ago) (2 children)

Definitely, tho if you store it as a u32 that is fixed magically. Because 1.2.3.4 and 1.02.003.04 both map to the same number.

What I mean by storing it as a u32 is to convert it to a number, similar to how the IP gets sent over the wire, so for v4:

octet[3] | octet[2] << 8 | octet[1] << 16 | octet[0] << 24

or in more human terms:

(fourth octet) + (third octet * 256) + (second octet * 256^2) + (first octet * 256^3)
[โ€“] Emma_Gold_Man@lemmy.dbzer0.com 2 points 2 years ago

True enough for database or dictionary storage, but a lot of times things get implemented in arrays where you still wind up with two copies of the same uint32.