bradphelan
18 lines
614 B
C#
18 lines
614 B
C#
// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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namespace Common.System.Numerics.Hashing
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{
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internal static class HashHelpers
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{
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public static int Combine(int h1, int h2)
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{
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// The jit optimizes this to use the ROL instruction on x86
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// Related GitHub pull request: dotnet/coreclr#1830
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uint shift5 = ((uint)h1 << 5) | ((uint)h1 >> 27);
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return ((int)shift5 + h1) ^ h2;
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}
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}
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}
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