How exactly are UUIDs stored in rust? I know that they are 128-bit numbers, and I read that they are stored as 16 octets. But I don't fully understand what that means.
Are they stored in stack or heap? They have a fixed size, so my guess is stack, but I am not sure of it.
There are a few ways that you can store it, what you are describing is something like this,
struct UUID([u8; 16]);
A u8
is an octect of bits, so 16 octets is simply 16 u8
s.
Since Rust has support for 128 bit integers, you can also do (but be wary of endianness)
struct UUID(u128);
Ohkay. So if I implement malloc_size_of trait for UUID, it should return 0 in both the cases, right?
What's malloc_size_of
from?
Yes, it should return 0
Okay. Thanks!
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