generic_array_split.rs

/// Consumes a generic array, splitting it at a given position.
    pub fn split<M: ArrayLength<T>>(self) -> (GenericArray<T, M>, GenericArray<T, Diff<N, M>>)
    where
        N: Sub<M>,
        Diff<N, M>: ArrayLength<T>,
    {
        unsafe {
            let array_ptr = &self as *const GenericArray<T, N>;
            let ptr1 = mem::transmute::<_, *const GenericArray<T, M>>(array_ptr);
            let tmp = mem::transmute::<_, *const T>(array_ptr);
            let ptr2 = mem::transmute::<_, *const GenericArray<T, Diff<N, M>>>(
                tmp.offset(M::to_usize() as isize),
            );
            (ptr::read(ptr1), ptr::read(ptr2))
        }
    }