LoopringCoin V2

0xbbbbca6a901c926f240b89eacb641d8aec7aeafd

totalSupply keyboard_arrow_up

    function totalSupply() public view returns (uint256) {
        return totalSupply_;
    }

balanceOf keyboard_arrow_up

    function balanceOf(address _owner) public view returns (uint256) {
        return balances[_owner];
    }

transfer keyboard_arrow_up

    function transfer(address _to, uint256 _value) public returns (bool) {
        // if _to is address(0), invoke burn function.
        if (_to == address(0)) {
            return burn(_value);
        }

        require(_value <= balances[msg.sender]);
        // 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;
    }

totalBurned keyboard_arrow_up

    function totalBurned() public view returns (uint256) {
        return burnedTotalNum_;
    }

burn keyboard_arrow_up

    function burn(uint256 _value) public returns (bool) {
        require(_value <= balances[msg.sender]);

        address burner = msg.sender;
        balances[burner] = balances[burner].sub(_value);
        totalSupply_ = totalSupply_.sub(_value);
        burnedTotalNum_ = burnedTotalNum_.add(_value);

        emit Burn(burner, _value);
        return true;
    }

allowance keyboard_arrow_up

    function allowance(address _owner, address _spender) public view returns (uint256) {
        return allowed[_owner][_spender];
    }

transferFrom keyboard_arrow_up

    function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
        if (_to == address(0)) {
            return burnFrom(_from, _value);
        }

        require(_value <= balances[_from]);
        require(_value <= allowed[_from][msg.sender]);
        balances[_from] = balances[_from].sub(_value);
        balances[_to] = balances[_to].add(_value);

        /// an allowance of MAX_UINT represents an unlimited allowance.
        /// @dev see https://github.com/ethereum/EIPs/issues/717
        if (allowed[_from][msg.sender] < MAX_UINT) {
            allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
        }
        emit Transfer(_from, _to, _value);
        return true;
    }

approve keyboard_arrow_up

    function approve(address _spender, uint256 _value) public returns (bool) {
        allowed[msg.sender][_spender] = _value;
        emit Approval(msg.sender, _spender, _value);
        return true;
    }

burnFrom keyboard_arrow_up

    function burnFrom(address _owner, uint256 _value) public returns (bool) {
        require(_owner != address(0));
        require(_value <= balances[_owner]);
        require(_value <= allowed[_owner][msg.sender]);

        balances[_owner] = balances[_owner].sub(_value);
        if (allowed[_owner][msg.sender] < MAX_UINT) {
            allowed[_owner][msg.sender] = allowed[_owner][msg.sender].sub(_value);
        }
        totalSupply_ = totalSupply_.sub(_value);
        burnedTotalNum_ = burnedTotalNum_.add(_value);

        emit Burn(_owner, _value);
        return true;
    }

increaseApproval keyboard_arrow_up

    function increaseApproval(address _spender, uint _addedValue) public returns (bool) {
        allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
        emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
        return true;
    }

decreaseApproval keyboard_arrow_up

    function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) {
        uint oldValue = allowed[msg.sender][_spender];
        if (_subtractedValue > oldValue) {
            allowed[msg.sender][_spender] = 0;
        } else {
            allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
        }
        emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
        return true;
    }

batchTransfer keyboard_arrow_up

    function batchTransfer(address[] calldata accounts, uint256[] calldata amounts)
        external
        returns (bool)
    {
        require(accounts.length == amounts.length);
        for (uint i = 0; i < accounts.length; i++) {
            require(transfer(accounts[i], amounts[i]), "transfer failed");
        }
        return true;
    }

constructor keyboard_arrow_up

    function () payable external {
        revert();
    }