Function encode_delta_varints

crates/blob_test_utils.rs:75–88

(values: &[i64])

}

pub(crate) fn encode_delta_varints(values: &[i64]) -> Vec<u8> {
    if values.is_empty() {
        return Vec::new();
    }

    let mut encoded = Vec::new();
    let mut previous = 0_i64;
    for (idx, value) in values.iter().copied().enumerate() {
        let delta = if idx == 0 { value } else { value - previous };
        previous = value;
        encode_varint(delta, &mut encoded);
    }
    encoded
}

fn encode_varint(value: i64, out: &mut Vec<u8>) {
    let mut remaining = ((value << 1) ^ (value >> 63)) as u64;