docchi_compaction 0.8.0

A serializer which compresses integers
Documentation 
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/// Return the number of bytes which can represents the val.
/// 1. -128 ..= 127,
/// 2. -32768..=32767...
pub fn signed_bytes(val : i64) -> usize{
    let mut val = if val < 0{ ((val + 1) * -1) as u64 } else{ val as u64 };
    let mut size = 1;
    loop{
        if val < 128{ return size; }
        val = val / 256;
        size += 1;
    }
}

/// Return the number of bytes which can represents the val.
/// 1. -128 ..= 127,
/// 2. -32768..=32767...
pub fn signed_bytes128(val : i128) -> usize{
    let mut val = if val < 0{ ((val + 1) * -1) as u128 } else{ val as u128 };
    let mut size = 1;
    loop{
        if val < 128{ return size; }
        val = val / 256;
        size += 1;
    }
}