Slabigator

A linked list that doesn't do dynamic memory allocations.

Things it was designed to do:

• Add to the head of the list in O(1) - What you get back is a stable slot number
• Pop from the tail of the list in O(1)
• Delete an element given its slot number in O(1)
• And nothing else.

Dumb, small, maintainable, zero dependencies.

Cargo features:

• unsafe: assume that remove() will always be called with a valid index. This saves some memory, but has to be used with extreme caution. That feature is not set by default.