Token

Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

 contract ERC20Token    - function totalSupply()    - function balanceOf(address _owner)    - function transfer(address _to, uint25 ...    - function transferFrom(address _from, ...    - function approve(address _spender, ui ...    - function allowance(address _owner, ad ...  contract PortalToken is ERC20Token *    - function PortalToken()    - function balanceOf(address _account)    - function totalSupply()    - function transfer(address _to, uint25 ...    - function transferFrom(address _from, ...    - function doTransfer(address _from, ad ...    - function approve(address _spender, ui ...    - function allowance(address _owner, ad ...

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2018-04-20
*/

pragma solidity ^0.4.18;


// https://github.com/ethereum/wiki/wiki/Standardized_Contract_APIs#transferable-fungibles-see-erc-20-for-the-latest

contract ERC20Token {
    // Triggered when tokens are transferred.
    event Transfer(address indexed _from, address indexed _to, uint256 _value);
    // Triggered whenever approve(address _spender, uint256 _value) is called.
    event Approval(address indexed _owner, address indexed _spender, uint256 _value);

    // Get the total token supply
    function totalSupply() constant public returns (uint256 supply);

    // Get the account `balance` of another account with address `_owner`
    function balanceOf(address _owner) constant public returns (uint256 balance);

    // Send `_value` amount of tokens to address `_to`
    function transfer(address _to, uint256 _value) public returns (bool success);

    // Send `_value` amount of tokens from address `_from` to address `_to`
    // The `transferFrom` method is used for a withdraw workflow, allowing contracts to send tokens on your behalf,
    // for example to "deposit" to a contract address and/or to charge fees in sub-currencies;
    // the command should fail unless the `_from` account has deliberately authorized the sender of the message
    // via some mechanism; we propose these standardized APIs for `approval`:
    function transferFrom(address _from, address _to, uint256 _value) public returns (bool success);

    // Allow _spender to withdraw from your account, multiple times, up to the _value amount.
    // If this function is called again it overwrites the current allowance with _value.
    function approve(address _spender, uint256 _value) public returns (bool success);

    // Returns the amount which _spender is still allowed to withdraw from _owner
    function allowance(address _owner, address _spender) constant public returns (uint256 remaining);
}

contract PortalToken is ERC20Token {
    address public initialOwner;
    uint256 public supply   = 1000000000 * 10 ** 18;  // 1,000,000,000
    string  public name     = 'PortalToken';
    uint8   public decimals = 18;
    string  public symbol   = 'PORTAL';
    string  public version  = 'v0.2';
    uint    public creationBlock;
    uint    public creationTime;

    mapping (address => uint256) balance;
    mapping (address => mapping (address => uint256)) m_allowance;

    event Transfer(address indexed _from, address indexed _to, uint256 _value);
    event Approval(address indexed _owner, address indexed _spender, uint256 _value);

    function PortalToken() public{
        initialOwner        = msg.sender;
        balance[msg.sender] = supply;
        creationBlock       = block.number;
        creationTime        = block.timestamp;
    }

    function balanceOf(address _account) constant public returns (uint) {
        return balance[_account];
    }

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

    function transfer(address _to, uint256 _value) public returns (bool success) {
        // `revert()` | `throw`
        //      http://solidity.readthedocs.io/en/develop/control-structures.html#error-handling-assert-require-revert-and-exceptions
        //      https://ethereum.stackexchange.com/questions/20978/why-do-throw-and-revert-create-different-bytecodes/20981
        return doTransfer(msg.sender, _to, _value);
    }

    function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
        if (allowance(_from, msg.sender) < _value) revert();

        m_allowance[_from][msg.sender] -= _value;

        if ( !(doTransfer(_from, _to, _value)) ) {
            m_allowance[_from][msg.sender] += _value;
            return false;
        } else {
            return true;
        }
    }

    function doTransfer(address _from, address _to, uint _value) internal returns (bool success) {
        if (balance[_from] >= _value && balance[_to] + _value >= balance[_to]) {
            balance[_from] -= _value;
            balance[_to] += _value;
            emit Transfer(_from, _to, _value);
            return true;
        } else {
            return false;
        }
    }

    function approve(address _spender, uint256 _value) public returns (bool success) {
        // https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
        if ( (_value != 0) && (allowance(msg.sender, _spender) != 0) ) revert();

        m_allowance[msg.sender][_spender] = _value;

        emit Approval(msg.sender, _spender, _value);

        return true;
    }

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

}

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":true,"inputs":[],"name":"supply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"creationBlock","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"initialOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"version","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_account","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"creationTime","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_owner","type":"address"},{"indexed":true,"name":"_spender","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Approval","type":"event"}]

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

bzzr://fb5992e0d07629bc7a527e95680be3c6dc70c9dfd0024baed557677617eb9b1d