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| Original file line number | Diff line number | Diff line change |
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| @@ -1,8 +1,6 @@ | ||
| // Copyright (c) 2024, Wiljan Ruizendaal. All rights reserved. <[email protected]> | ||
| // Distributed under the MIT Software License, Version 1.0. | ||
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| #if NET7_0_OR_GREATER | ||
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| using Faster.Map.Contracts; | ||
| using Faster.Map.Hasher; | ||
| using System; | ||
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@@ -1031,4 +1029,3 @@ internal struct Entry | |
| }; | ||
| } | ||
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| #endif | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| #if NET8_0_OR_GREATER | ||
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| using Faster.Map.Contracts; | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Runtime.CompilerServices; | ||
| using System.Runtime.InteropServices; | ||
| using GxHash; | ||
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| namespace Faster.Map.Hasher | ||
| { | ||
| public class GxHasher : IHasher<string> | ||
| { | ||
| // https://github.com/ogxd/gxhash-csharp/blob/main/GxHash/ | ||
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| // Arbitrary constants with high entropy. Hexadecimal digits of pi were used. | ||
| public const ulong ARBITRARY0 = 0x243f6a8885a308d3; | ||
| public const ulong ARBITRARY1 = 0x13198a2e03707344; | ||
| public const ulong ARBITRARY2 = 0xa4093822299f31d0; | ||
| public const ulong ARBITRARY3 = 0x082efa98ec4e6c89; | ||
| public const ulong ARBITRARY4 = 0x452821e638d01377; | ||
| public const ulong ARBITRARY5 = 0xbe5466cf34e90c6c; | ||
| public const ulong ARBITRARY6 = 0xc0ac29b7c97c50dd; | ||
| public const ulong ARBITRARY7 = 0x3f84d5b5b5470917; | ||
| public const ulong ARBITRARY8 = 0x9216d5d98979fb1b; | ||
| public const ulong ARBITRARY9 = 0xd1310ba698dfb5ac; | ||
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| UInt128 _seed = (UInt128) 0x243f6a8885a308d3 * 0x3f84d5b5b5470917; | ||
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| [MethodImpl(MethodImplOptions.AggressiveInlining)] | ||
| public ulong ComputeHash(string key) | ||
| { | ||
| return GxHash.GxHash.HashU64(MemoryMarshal.AsBytes(key.AsSpan()), _seed); | ||
| } | ||
| } | ||
| } | ||
| #endif |
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@@ -14,4 +14,6 @@ public ulong ComputeHash(T key) | |
| return XxHash3.HashToUInt64(span); | ||
| } | ||
| } | ||
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| } | ||