49 lines
1.3 KiB
C#
49 lines
1.3 KiB
C#
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
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#pragma warning disable
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using System;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities
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{
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public abstract class Integers
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{
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public static int NumberOfLeadingZeros(int i)
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{
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if (i <= 0)
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return (~i >> (31 - 5)) & (1 << 5);
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uint u = (uint)i;
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int n = 1;
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if (0 == (u >> 16)) { n += 16; u <<= 16; }
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if (0 == (u >> 24)) { n += 8; u <<= 8; }
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if (0 == (u >> 28)) { n += 4; u <<= 4; }
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if (0 == (u >> 30)) { n += 2; u <<= 2; }
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n -= (int)(u >> 31);
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return n;
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}
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public static int RotateLeft(int i, int distance)
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{
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return (i << distance) ^ (int)((uint)i >> -distance);
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}
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[CLSCompliantAttribute(false)]
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public static uint RotateLeft(uint i, int distance)
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{
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return (i << distance) ^ (i >> -distance);
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}
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public static int RotateRight(int i, int distance)
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{
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return (int)((uint)i >> distance) ^ (i << -distance);
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}
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[CLSCompliantAttribute(false)]
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public static uint RotateRight(uint i, int distance)
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{
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return (i >> distance) ^ (i << -distance);
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}
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}
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}
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#pragma warning restore
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#endif
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