.NET GUID Utils

GuidUtils.cs

using System;

public static class GuidUtils
{
	public static Guid FromInt64(params long[] f)
	{
		byte[] result = new byte[16];

		BitConverter.GetBytes (f [0]).CopyTo (result, 0);
		BitConverter.GetBytes (f [1]).CopyTo (result, 8);

		return new Guid (result);
	}

	public static long[] ToInt64(Guid f)
	{
		byte[] dump = f.ToByteArray ();
		long[] result = new long[2];

		result [0] = BitConverter.ToInt64 (new byte[] {
			dump [0],
			dump [1],
			dump [2],
			dump [3],
			dump [4],
			dump [5],
			dump [6],
			dump [7]
		}, 0);

		result [1] = BitConverter.ToInt64 (new byte[] {
			dump [8],
			dump [9],
			dump [10],
			dump [11],
			dump [12],
			dump [13],
			dump [14],
			dump [15]
		}, 0);

		return result;
	}
}

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