A port of HenryRLee/PokerHandEvaluator from c++ to c#.
This is a net6 version.

Have a look in the pheval.Tests folder.

In monodevelop or visual studio, select the pheval.Tests project and choose Run -> 'Run Unit Tests'. The tests depend on the presence of libpheval.so (or .dll). This shared object was created as follows:

$ git clone https://github.com/HenryRLee/PokerHandEvaluator
$ cd PokerHandEvaluator/cpp
$ # edit CMakeLists.txt changing STATIC to SHARED on line 16
$ mkdir build && cd build
$ cmake -DBUILD_TESTS=OFF -DBUILD_EXAMPLES=OFF ..
$ make
$ # now copy libpheval.so (or .dll) into the pheval.Tests directory of this project

If you're on windows, you'll have to add libpheval.dll to the pheval.Tests project and select 'Copy To Output Directory' (in monodevelop right-click the file -> 'Quick Properties')

BenchmarkDotNet=v0.13.2, OS=Windows 10 (10.0.19044.2006/21H2/November2021Update)
Intel Core i9-10850K CPU 3.60GHz, 1 CPU, 20 logical and 10 physical cores
.NET SDK=6.0.401
  [Host]     : .NET 6.0.9 (6.0.922.41905), X64 RyuJIT AVX2
  DefaultJob : .NET 6.0.9 (6.0.922.41905), X64 RyuJIT AVX2

|          Method |     Mean |   Error |  StdDev |
|---------------- |---------:|--------:|--------:|
| GetHandStrength | 221.2 ns | 4.01 ns | 3.75 ns |