// The MIT License(MIT)

//

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//

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// Original

// https://github.com/dotnet/corefx/blob/master/src/Common/src/System/Numerics/Hashing/HashHelper.cs #84f5ac7

namespace EventFlow.Core

{

public static class HashHelper

{

public static int Combine(int h1, int h2)

{

unchecked

{

// RyuJIT optimizes this to use the ROL instruction

// Related GitHub pull request: dotnet/coreclr#1830

var rol5 = ((uint)h1 << 5) | ((uint)h1 >> 27);

return ((int)rol5 + h1) ^ h2;

}

}

}

}