```rust
#[repr(C)]
#[derive(PartialEq, PartialOrd, Eq, Ord, Debug, Hash)]
pub enum FfiResult<T, E> {
    /// The operation succeeded (like [`core::result::Result::Ok`]).
    Ok(T),
    /// The operation failed (like [`core::result::Result::Err`]).
    Err(E),
}

```

where T is u8 and E is an enum with only a few entries