contract DissolutionToken is ERC20Interface, Owned {

    using SafeMath for uint;


    string public symbol;

    string public  name;

    uint8 public decimals;

    uint _totalSupply;


    mapping(address => uint) balances;

    mapping(address => mapping(address => uint)) allowed;


    constructor() public {

        symbol = "DIS";

        name = "Dissolution";

        decimals = 0;

    //100 billion total supply
        _totalSupply = 100000000000 * 10**uint(decimals);

        balances[owner] = _totalSupply;

        emit Transfer(address(0), owner, _totalSupply);

    }


    //total supply 100 bil
    function totalSupply() public view returns (uint) {

        return _totalSupply.sub(balances[address(0)]);

    }


    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] = balances[msg.sender].sub(tokens);

        balances[to] = balances[to].add(tokens);

        emit Transfer(msg.sender, to, tokens);

        return true;

    }


    function approve(address spender, uint tokens) public returns (bool success) {

        allowed[msg.sender][spender] = tokens;

        emit Approval(msg.sender, spender, tokens);

        return true;

    }


    function transferFrom(address from, address to, uint tokens) public returns (bool success) {

        balances[from] = balances[from].sub(tokens);

        allowed[from][msg.sender] = allowed[from][msg.sender].sub(tokens);

        balances[to] = balances[to].add(tokens);

        emit Transfer(from, to, tokens);

        return true;

    }


    function allowance(address tokenOwner, address spender) public view returns (uint remaining) {

        return allowed[tokenOwner][spender];

    }


    function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) {

        allowed[msg.sender][spender] = tokens;

        emit Approval(msg.sender, spender, tokens);

        ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data);

        return true;

    }

    //Return any sent ETH
    function () external payable {

        revert();

    }

    //owner can transfer out accidental sends
    function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {

        return ERC20Interface(tokenAddress).transfer(owner, tokens);

    }

}
function totalSupply() public view returns (uint) {

        return _totalSupply.sub(balances[address(0)]);

    }
//total supply 100 bil