contract BasicToken is ERC20Basic, Controllable {
    using SafeMathUint256 for uint256;

    mapping(address => uint256) balances;

    uint256 public totalSupply;

    constructor(uint256 _initialSupply) public
    {
        totalSupply = _initialSupply;

        if (0 < _initialSupply) {
            balances[msg.sender] = _initialSupply;
            emit Transfer(address(0), msg.sender, _initialSupply);
        }
    }

    /**
    * @dev transfer token for a specified address
    * @param _to The address to transfer to.
    * @param _value The amount to be transferred.
    */
    function transfer(address _to, uint256 _value) public
        isUsable
        onlyActive(msg.sender)
        onlyActive(_to)
        returns (bool)
    {
        require(0 < _value, "BasicToken.transfer: Zero value");
        require(_value <= balances[msg.sender], "BasicToken.transfer: Insufficient fund");

        // SafeMath.sub will throw if there is not enough balance.
        balances[msg.sender] = balances[msg.sender].sub(_value);
        balances[_to] = balances[_to].add(_value);
        emit Transfer(msg.sender, _to, _value);
        return true;
    }

    /**
    * @dev Gets the balance of the specified address.
    * @param _owner The address to query the the balance of.
    * @return An uint256 representing the amount owned by the passed address.
    */
    function balanceOf(address _owner) public view
        returns (uint256 balance)
    {
        return balances[_owner];
    }

}
/**
 * @title Basic token
 * @dev Basic version of StandardToken, with no allowances.
 */
function transfer(address _to, uint256 _value) public
    isUsable
    onlyActive(msg.sender)
    onlyActive(_to)
    returns (bool)
{
    require(0 < _value, "BasicToken.transfer: Zero value");
    require(_value <= balances[msg.sender], "BasicToken.transfer: Insufficient fund");

    // SafeMath.sub will throw if there is not enough balance.
    balances[msg.sender] = balances[msg.sender].sub(_value);
    balances[_to] = balances[_to].add(_value);
    emit Transfer(msg.sender, _to, _value);
    return true;
}

/**
 * @dev transfer token for a specified address
 * @param _to The address to transfer to.
 * @param _value The amount to be transferred.
 */