Type Alias CRCTree 

pub type CRCTree<T> = BTreeMap<u32, T>;

Datastructure to hold a CRC tree.

Within the file, the trees are sorted by CRC value and organised in binary tree. This is not necessarily the same as the Rust B-Tree, but the ordering is good enough for what we need.

Aliased Type

pub struct CRCTree<T> { /* private fields */ }