Module is_tree::unsafe_

Unsafe traits and functions cautiously used in the library but made unsafe to discourage their external use.

Traits

• UnsafeBorrow
  This is required to generalize TreeIterator with a single ::new method.
• UnsafeClone
  This is required to generalize TreeIterator with a single ::new method.

Functions

• longer_mut^⚠
  Makes the mutable reference live longer.
• longer_ref^⚠
  Makes the reference live longer.