Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

 contract HdbToken *    - function HdbToken()    - function transfer(address to, uint256 ...    - function approve(address spender, uin ...    - function transferFrom(address from, a ...

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2019-08-13
*/

pragma solidity ^0.4.21;

contract HdbToken {
    mapping (address => uint256) public balanceOf;

    string public  name         = "HDB ERC20 Token";
    string public  symbol       = "HDB";
    uint8  public  decimals     = 3;
    uint256 public totalSupply  = 100000000000;

    event Transfer(address indexed from, address indexed to, uint256 value);

    function HdbToken() public {
        balanceOf[msg.sender] = totalSupply;
        emit Transfer(address(0), msg.sender, totalSupply);
    }

    function transfer(address to, uint256 value) public returns (bool success) {
        require(balanceOf[msg.sender] >= value);

        balanceOf[msg.sender] -= value;
        balanceOf[to] += value;
        emit Transfer(msg.sender, to, value);
        return true;
    }

    event Approval(address indexed owner, address indexed spender, uint256 value);

    mapping(address => mapping(address => uint256)) public allowance;

    function approve(address spender, uint256 value)
    public
    returns (bool success)
    {
        allowance[msg.sender][spender] = value;
        emit Approval(msg.sender, spender, value);
        return true;
    }

    function transferFrom(address from, address to, uint256 value)
    public
    returns (bool success)
    {
        require(value <= balanceOf[from]);
        require(value <= allowance[from][msg.sender]);

        balanceOf[from] -= value;
        balanceOf[to] += value;
        allowance[from][msg.sender] -= value;
        emit Transfer(from, to, value);
        return true;
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"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":"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":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","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":"","type":"address"},{"name":"","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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

28:1571:0:-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;107:47;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;23:1:-1;8:100;33:3;30:1;27:10;8:100;;;99:1;94:3;90:11;84:18;71:11;;;64:39;52:2;45:10;8:100;;;12:14;107:47:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;967:225;;;;;;;;;;-1:-1:-1;;;;;967:225:0;;;;;;;;;;;;;;;;;;;;;;;;241:42;;;;;;;;;;;;;;;;;;;;;;;;;;;1200:396;;;;;;;;;;-1:-1:-1;;;;;1200:396:0;;;;;;;;;;;;203:31;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;53:45;;;;;;;;;;-1:-1:-1;;;;;53:45:0;;;;;161:35;;;;;;;;;;;;522:278;;;;;;;;;;-1:-1:-1;;;;;522:278:0;;;;;;;894:64;;;;;;;;;;-1:-1:-1;;;;;894:64:0;;;;;;;;;;107:47;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::o;967:225::-;-1:-1:-1;;;;;1082:10:0;1072:21;;1042:12;1072:21;;;:9;:21;;;;;;;;:30;;;;;;;;;;;;;:38;;;1042:12;;1072:30;:21;1126:36;;1105:5;;1126:36;;;;;;;;;;;;;-1:-1:-1;1180:4:0;967:225;;;;:::o;241:42::-;;;;:::o;1200:396::-;-1:-1:-1;;;;;1336:15:0;;1289:12;1336:15;;;;;;;;;;;1327:24;;;1319:33;;;;;;-1:-1:-1;;;;;1380:15:0;;;;;;;:9;:15;;;;;;;;1396:10;1380:27;;;;;;;;;;1371:36;;;1363:45;;;;;;-1:-1:-1;;;;;1421:15:0;;;:9;:15;;;;;;;;;;;:24;;;;;;;1456:13;;;;;;;;;:22;;;;;;1489:15;;;:9;:15;;;;;1505:10;1489:27;;;;;;;;;;;;;:36;;;;;;;1541:25;;1440:5;;1541:25;;;;;;;;;;;;;-1:-1:-1;1584:4:0;1200:396;;;;;:::o;203:31::-;;;;;;:::o;53:45::-;;;;;;;;;;;;;;:::o;161:35::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;522:278;-1:-1:-1;;;;;626:10:0;616:21;583:12;616:21;;;;;;;;;;;:30;;;;608:39;;;;;;-1:-1:-1;;;;;670:10:0;660:21;;:9;:21;;;;;;;;;;;:30;;;;;;;701:13;;;;;;;;;;:22;;;;;;:13;739:31;;685:5;;739:31;;;;;;;;;;;;;-1:-1:-1;788:4:0;522:278;;;;:::o;894:64::-;;;;;;;;;;;;;;;;;;;;;;;;:::o

bzzr://8a1c578bcbdc85add92103adf4333adf5919e7063cb2ace6ea0d7c4e90a9d823