openzeppelin-contracts/contracts/ownership/NoOwner.sol

pragma solidity ^0.4.8;

import "./HasNoEther.sol";
import "./HasNoTokens.sol";
import "./HasNoContracts.sol";

/** @title Base contract for contracts that should not own things.
* @author Remco Bloemen <remco@2π.com>
* @devSolves a class of errors where a contract accidentally becomes owner of Ether, Tokens or Owned contracts. See respective base contracts for details.
*/
contract NoOwner is HasNoEther, HasNoTokens, HasNoContracts {
}