require 'bitvector'
b = BitVector.new(100_000).randomize     # 1e5 random bits
a = BitVector.new(100_000).randomize     # another 1e5 random bits
c = a^b                                  # exclusive or of 2*1e5 rand bits
puts c.inspect
File.open("testdata_mybits", "w") {|f|            # Dump bit vector to file
  f.write Marshal.dump(c)
}
puts BitVector.from_bin(8, "10011011").ones.inspect
puts c.to_i