contract BBCToken is ERC20Interface {
    string public symbol;
    string public  name;
    uint8 public decimals;
    uint256 public _totalSupply;

    mapping(address => uint256) balances;
    mapping(address => mapping(address => uint256)) allowed;



 function safeAdd(uint a, uint b) public pure returns (uint c) {
        c = a + b;
        require(c >= a);
    }
    function safeSub(uint a, uint b) public pure returns (uint c) {
        require(b <= a);
        c = a - b;
    }
    function safeMul(uint a, uint b) public pure returns (uint c) {
        c = a * b;
        require(a == 0 || c / a == b);
    }
    function safeDiv(uint a, uint b) public pure returns (uint c) {
        require(b > 0);
        c = a / b;
    }
    
    
    address public owner;
    address public newOwner;

    event OwnershipTransferred(address indexed _from, address indexed _to);

    constructor(uint256 total) public {
        owner = msg.sender;
        BBCTOKEN(total);
    }

    modifier onlyOwner {
        require(msg.sender == owner);
        _;
    }

    function transferOwnership(address _newOwner) public onlyOwner {
        newOwner = _newOwner;
    }
    function acceptOwnership() public {
        require(msg.sender == newOwner);
        emit OwnershipTransferred(owner, newOwner);
        owner = newOwner;
        newOwner = address(0);
    }
    // ------------------------------------------------------------------------
    // Constructor
    // ------------------------------------------------------------------------
    function BBCTOKEN(uint256 total) public {
        symbol = "BBC";
        name = "BBC TOKEN";
        decimals = 18;
        _totalSupply = total;
        balances[msg.sender] = _totalSupply;
       
    }


    // ------------------------------------------------------------------------
    // Total supply
    // ------------------------------------------------------------------------
    function totalSupply() public view returns (uint) {
        return _totalSupply;
    }


    // ------------------------------------------------------------------------
    // Get the token balance for account tokenOwner
    // ------------------------------------------------------------------------
    function balanceOf(address tokenOwner) public view returns (uint balance) {
        return balances[tokenOwner];
    }

    function transfer(address to, uint tokens) public returns (bool success) {
        balances[msg.sender] = safeSub(balances[msg.sender], tokens);
        balances[to] = safeAdd(balances[to], tokens);
        emit Transfer(msg.sender, to, tokens);
        return true;
    }

}
function totalSupply() public view returns (uint) {
        return _totalSupply;
    }
// ------------------------------------------------------------------------
// Total supply
// ------------------------------------------------------------------------