FastHashSet is a replacement for the generic HashSet<T>. It is usually faster, has more predictable memory allocations, and uses C# 7.x ref returns and readonly ref params (in).
Orcomp/FastHashSet
A replacement for the generic HashSet<T> that is usually faster, has more predictable memory allocations, and uses C# 7.x ref returns and readonly ref params (in). Uses MIT License.
C#