我想从一个自定义的随机数生成器中生成一个UUID。
use uuid::{Builder, Uuid, Variant, Version};
use rand::{Rng, SeedableRng, rngs::StdRng, RngCore};
fn main() {
let seed = [5u8; 32];
let mut rng: StdRng = SeedableRng::from_seed(seed);
let bytes = ???
let uuid = Builder::from_bytes(bytes)
.set_variant(Variant::RFC4122)
.set_version(Version::Random)
.build();
println!("{:?}", uuid);
}
我如何获得字节?
我想我已经做到了。
use rand::{rngs::StdRng, RngCore, SeedableRng};
use uuid::{Builder, Variant, Version};
fn main() {
let seed = [0u8; 32];
let mut rng: StdRng = SeedableRng::from_seed(seed);
let mut bytes = [0u8; 16];
rng.fill_bytes(&mut bytes);
let uuid = Builder::from_bytes(bytes)
.set_variant(Variant::RFC4122)
.set_version(Version::Random)
.build();
println!("{:?}", uuid);
}