Initial commit

IO/FileCompare.cs

@@ -0,0 +1,62 @@
+using System;
+using System.IO;
+
+namespace Common.IO
+{
+	public class FileCompare
+	{
+		#region Comparison
+
+		public bool Compare(string fileName1, string fileName2)
+		{
+			FileStream fileStream1 = null;
+			FileStream fileStream2 = null;
+			bool compareStatus = true;
+
+		    try
+			{
+				// Create file streams for each file
+				fileStream1 = new FileStream(fileName1, FileMode.Open);
+				fileStream2 = new FileStream(fileName2, FileMode.Open);
+
+				// If the files aren't the same length then don't bother with more
+				if (fileStream1.Length != fileStream2.Length)
+					throw new ApplicationException();
+
+				// Start comparing the bytes of each file
+			    int fileByte1;
+			    do
+				{
+					// Read a byte from the first file
+					fileByte1 = fileStream1.ReadByte();
+
+					// Read a byte from the second file
+					int fileByte2 = fileStream2.ReadByte();
+
+					// If the bytes don't match then stop
+					if (fileByte1 != fileByte2)
+						throw new ApplicationException();
+				}
+				while (fileByte1 != -1);
+			}
+			catch
+			{
+				// Compare failed
+				compareStatus = false;
+			}
+			finally
+			{
+				// Close both of the file streams
+				if (fileStream1 != null)
+					fileStream1.Close();
+
+				if (fileStream2 != null)
+					fileStream2.Close();
+			}
+
+			return compareStatus;
+		}
+
+		#endregion
+	}
+}