BitArray opBinary(string op)(const BitArray e2) if (op == "-" || op == "&" || op == "|" || op == "^")
Support for binary bitwise operators for BitArray.
BitArray
BitArray opBinary(string op)(bool b) if (op == "~")
Support for binary operator ~ for BitArray.
BitArray opBinary(string op)(BitArray b) if (op == "~")
ditto