Function random_vec

nodedb-codec/src/vector_quant/rabitq.rs:377–386

(seed: u64, dim: usize)

    use super::*;

    fn random_vec(seed: u64, dim: usize) -> Vec<f32> {
        let mut s = seed | 1;
        (0..dim)
            .map(|_| {
                let v = xorshift64(&mut s);
                // Map to [-1, 1]
                (v as f32 / u64::MAX as f32) * 2.0 - 1.0
            })
            .collect()
    }

    #[test]
    fn to_bytes_from_bytes_roundtrip() {