Raw Serializer in C#

RawSerializer.cs

    internal class RawSerializer<T>
    {
        public T RawDeserialize( byte[] rawData )
        {
            return RawDeserialize( rawData , 0 );
        }

        public T RawDeserialize( byte[] rawData , int position )
        {
            int rawsize = Marshal.SizeOf( typeof(T) );
            if( rawsize > rawData.Length )
                return default(T);

            IntPtr buffer = Marshal.AllocHGlobal( rawsize );
            try
            {
                Marshal.Copy( rawData, position, buffer, rawsize );
                return (T) Marshal.PtrToStructure( buffer, typeof(T) );
            }
            finally
            {
                Marshal.FreeHGlobal( buffer );
            }
        }

        public byte[] RawSerialize( T item )
        {
            int rawSize = Marshal.SizeOf( typeof(T) );
            byte[] rawData = new byte[ rawSize ];
            IntPtr buffer = Marshal.AllocHGlobal( rawSize );
            try
            {
                Marshal.StructureToPtr( item, buffer, false );
                Marshal.Copy( buffer, rawData, 0, rawSize );
            }
            finally
            {
                Marshal.FreeHGlobal( buffer );
            }
            return rawData;
        }
    }