Blender mesh data structure

Question

Does anyone know what data structure blender is using? Like Half-Edge / Winged Edge / Shared Vertext / Directed Edge etc.

I should prepare a presentation for my university about different data structures. As we're using Blender, I think, I should at least know that about Blender. I also did google it, but it seems like no one knows anything about that.

Answer 1

A bit late, but the data structure used draws from the "Radial Edge Structure"

Documented here: https://wiki.blender.org/wiki/Source/Modeling/BMesh/Design