1

I get this error

" ParserError: Function, variable, struct or modifier declaration expected.

function transferFrom(address _from, address _to, uint _value) public returns (bool)

^ " everytime I try to verify my contract code. My ABI constructor parameters work fine.

I am using 0.4.20+commit.3155dd80 My contract address is 0x24b8ce20aeb2e68168e389bdb5f4b26bb77ac018

pragma solidity 0.4.20;

contract ERC20 {
    function transferFrom(address _from, address _to, uint _value) public returns (bool);
    function approve(address _spender, uint _value) public returns (bool);
    function allowance(address _owner, address _spender) public constant returns (uint);
    event Approval(address indexed _owner, address indexed _spender, uint _value);
}

contract ERC223 {
    function transfer(address _to, uint _value, bytes _data) public returns (bool);
    event Transfer(address indexed from, address indexed to, uint value, bytes indexed data);
}

contract ERC223ReceivingContract {
    function tokenFallback(address _from, uint _value, bytes _data) public;
}

contract Token {
    string internal _symbol;
    string internal _name;
    uint8 internal _decimals;
    uint internal _totalSupply = 1000;
    mapping (address => uint) internal _balanceOf;
    mapping (address => mapping (address => uint)) internal _allowances;

    function Token(string symbol, string name, uint8 decimals, uint totalSupply) public {
        _symbol = symbol;
        _name = name;
        _decimals = decimals;
        _totalSupply = totalSupply;
    }

    function name() public constant returns (string) {
        return _name;
    }

    function symbol() public constant returns (string) {
        return _symbol;
    }

    function decimals() public constant returns (uint8) {
        return _decimals;
    }

    function totalSupply() public constant returns (uint) {
        return _totalSupply;
    }

    function balanceOf(address _addr) public constant returns (uint);
    function transfer(address _to, uint _value) public returns (bool);
    event Transfer(address indexed _from, address indexed _to, uint _value);
}

library SafeMath {
  function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    uint256 c = a * b;
    assert(a == 0 || c / a == b);
    return c;
  }

  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    // assert(b > 0); // Solidity automatically throws when dividing by 0
    uint256 c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold
    return c;
  }

  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    assert(b <= a);
    return a - b;
  }

  function add(uint256 a, uint256 b) internal pure returns (uint256) {
    uint256 c = a + b;
    assert(c >= a);
    return c;
  }
}

contract LGCCoin is Token("LGC", "LGC-Coin", 2, 600000000), ERC20, ERC223 {

    using SafeMath for uint;

    function LGCCoin() public {
        _balanceOf[msg.sender] = _totalSupply;
    }

    function totalSupply() public constant returns (uint) {
        return _totalSupply;
    }

    function balanceOf(address _addr) public constant returns (uint) {
        return _balanceOf[_addr];
    }

    function transfer(address _to, uint _value) public returns (bool) {
        if (_value > 0 &&
            _value <= _balanceOf[msg.sender] &&
            !isContract(_to)) {
            _balanceOf[msg.sender] = _balanceOf[msg.sender].sub(_value);
            _balanceOf[_to] = _balanceOf[_to].add(_value);
            Transfer(msg.sender, _to, _value);
            return true;
        }
        return false;
    }

    function transfer(address _to, uint _value, bytes _data) public returns (bool) {
        if (_value > 0 &&
            _value <= _balanceOf[msg.sender] &&
            isContract(_to)) {
            _balanceOf[msg.sender] = _balanceOf[msg.sender].sub(_value);
            _balanceOf[_to] = _balanceOf[_to].add(_value);
            ERC223ReceivingContract _contract = ERC223ReceivingContract(_to);
            _contract.tokenFallback(msg.sender, _value, _data);
            Transfer(msg.sender, _to, _value, _data);
            return true;
        }
        return false;
    }

    function isContract(address _addr) private constant returns (bool) {
        uint codeSize;
        assembly {
            codeSize := extcodesize(_addr)
        }
        return codeSize > 0;
    }

    function transferFrom(address _from, address _to, uint _value) public returns (bool) {
        if (_allowances[_from][msg.sender] > 0 &&
            _value > 0 &&
            _allowances[_from][msg.sender] >= _value &&
            _balanceOf[_from] >= _value) {
            _balanceOf[_from] = _balanceOf[_from].sub(_value);
            _balanceOf[_to] = _balanceOf[_to].add(_value);
            _allowances[_from][msg.sender] = _allowances[_from][msg.sender].sub(_value);
            Transfer(_from, _to, _value);
            return true;
        }
        return false;
    }

    function approve(address _spender, uint _value) public returns (bool) {
        _allowances[msg.sender][_spender] = _allowances[msg.sender][_spender].add(_value);
        Approval(msg.sender, _spender, _value);
        return true;
    }

    function allowance(address _owner, address _spender) public constant returns (uint) {
        return _allowances[_owner][_spender];
    }
}

closed as unclear what you're asking by smarx, shane, Richard Horrocks, Nicolas Massart, Rosco Kalis Jan 3 at 14:39

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • Where/how on Etherscan are you trying to compile this? Can you give us the necessary steps to see the error? – smarx Jan 3 at 0:04
  • The error is at line 7. Your line 7 is not that. What have you before the snippet of code you shared here? – Rick Park Jan 3 at 0:08
  • On Etherscan I am trying to verify a contract code. When the compiler toys to compile the code it flattens it hence the line 7 not being what it looks like. @RickPark – user3276488 Jan 3 at 0:15
  • Trying to verify contract code @smarx – user3276488 Jan 3 at 0:15
  • @JesseBusman any help you could give – user3276488 Jan 3 at 0:21