Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Common / Shared / DigestComparer.cs / 1305376 / DigestComparer.cs
using System; using System.Diagnostics; using System.Collections.Generic; using System.Globalization; internal class DigestComparer : IComparer, IEqualityComparer { int IComparer .Compare(byte[] digest1, byte[] digest2) { Debug.Assert(digest1.Length == 16 && digest2.Length == 16, "Invalid digest!"); for (int index = 0; index < 16; index++) if (digest1[index] != digest2[index]) return (digest1[index] < digest2[index]) ? -1 : 1; return 0; } bool IEqualityComparer .Equals(byte[] digest1, byte[] digest2) { Debug.Assert(digest1.Length == 16 && digest2.Length == 16, "Invalid digest!"); for (int index = 0; index < 16; index++) if (digest1[index] != digest2[index]) return false; return true; } int IEqualityComparer .GetHashCode(byte[] checksumBytes) { return GetMD5DigestString(checksumBytes).GetHashCode(); } internal static string GetMD5DigestString(byte[] md5Digest) { return string.Format(CultureInfo.InvariantCulture, "{0}{1}{2}{3}{4}{5}{6}{7}{8}{9}{10}{11}{12}{13}{14}{15}", md5Digest[0].ToString("X2", CultureInfo.InvariantCulture), md5Digest[1].ToString("X2", CultureInfo.InvariantCulture), md5Digest[2].ToString("X2", CultureInfo.InvariantCulture), md5Digest[3].ToString("X2", CultureInfo.InvariantCulture), md5Digest[4].ToString("X2", CultureInfo.InvariantCulture), md5Digest[5].ToString("X2", CultureInfo.InvariantCulture), md5Digest[6].ToString("X2", CultureInfo.InvariantCulture), md5Digest[7].ToString("X2", CultureInfo.InvariantCulture), md5Digest[8].ToString("X2", CultureInfo.InvariantCulture), md5Digest[9].ToString("X2", CultureInfo.InvariantCulture), md5Digest[10].ToString("X2", CultureInfo.InvariantCulture), md5Digest[11].ToString("X2", CultureInfo.InvariantCulture), md5Digest[12].ToString("X2", CultureInfo.InvariantCulture), md5Digest[13].ToString("X2", CultureInfo.InvariantCulture), md5Digest[14].ToString("X2", CultureInfo.InvariantCulture), md5Digest[15].ToString("X2", CultureInfo.InvariantCulture)); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. using System; using System.Diagnostics; using System.Collections.Generic; using System.Globalization; internal class DigestComparer : IComparer , IEqualityComparer { int IComparer .Compare(byte[] digest1, byte[] digest2) { Debug.Assert(digest1.Length == 16 && digest2.Length == 16, "Invalid digest!"); for (int index = 0; index < 16; index++) if (digest1[index] != digest2[index]) return (digest1[index] < digest2[index]) ? -1 : 1; return 0; } bool IEqualityComparer .Equals(byte[] digest1, byte[] digest2) { Debug.Assert(digest1.Length == 16 && digest2.Length == 16, "Invalid digest!"); for (int index = 0; index < 16; index++) if (digest1[index] != digest2[index]) return false; return true; } int IEqualityComparer .GetHashCode(byte[] checksumBytes) { return GetMD5DigestString(checksumBytes).GetHashCode(); } internal static string GetMD5DigestString(byte[] md5Digest) { return string.Format(CultureInfo.InvariantCulture, "{0}{1}{2}{3}{4}{5}{6}{7}{8}{9}{10}{11}{12}{13}{14}{15}", md5Digest[0].ToString("X2", CultureInfo.InvariantCulture), md5Digest[1].ToString("X2", CultureInfo.InvariantCulture), md5Digest[2].ToString("X2", CultureInfo.InvariantCulture), md5Digest[3].ToString("X2", CultureInfo.InvariantCulture), md5Digest[4].ToString("X2", CultureInfo.InvariantCulture), md5Digest[5].ToString("X2", CultureInfo.InvariantCulture), md5Digest[6].ToString("X2", CultureInfo.InvariantCulture), md5Digest[7].ToString("X2", CultureInfo.InvariantCulture), md5Digest[8].ToString("X2", CultureInfo.InvariantCulture), md5Digest[9].ToString("X2", CultureInfo.InvariantCulture), md5Digest[10].ToString("X2", CultureInfo.InvariantCulture), md5Digest[11].ToString("X2", CultureInfo.InvariantCulture), md5Digest[12].ToString("X2", CultureInfo.InvariantCulture), md5Digest[13].ToString("X2", CultureInfo.InvariantCulture), md5Digest[14].ToString("X2", CultureInfo.InvariantCulture), md5Digest[15].ToString("X2", CultureInfo.InvariantCulture)); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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