Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

•  contract SafeMath
•    - function safeMul(uint256 a, uint256 b ...
•    - function safeDiv(uint256 a, uint256 b ...
•    - function safeSub(uint256 a, uint256 b ...
•    - function safeAdd(uint256 a, uint256 b ...
•    - function _assert(bool assertion)
•  contract ERC20Interface *
•    - function transfer(address _to, uint25 ...
•    - function transferFrom(address _from, ...
•    - function approve(address _spender, ui ...
•    - function allowance(address _owner, ad ...
•  contract ERC20 is ERC20Interface,S ... *
•    - function transfer(address _to, uint25 ...
•    - function transferFrom(address _from, ...
•    - function approve(address _spender, ui ...
•    - function allowance(address _owner, ad ...

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2019-05-06
*/

pragma solidity ^0.4.25;

contract SafeMath {
  function safeMul(uint256 a, uint256 b) public pure  returns (uint256)  {
    uint256 c = a * b;
    assert(a == 0 || c / a == b);
    return c;
  }

  function safeDiv(uint256 a, uint256 b)public pure returns (uint256) {
    assert(b > 0);
    uint256 c = a / b;
    assert(a == b * c + a % b);
    return c;
  }

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

  function safeAdd(uint256 a, uint256 b)public pure returns (uint256) {
    uint256 c = a + b;
    assert(c>=a && c>=b);
    return c;
  }

  function _assert(bool assertion)public pure {
    assert(!assertion);
  }
}


contract ERC20Interface {
  string public name;
  string public symbol;
  uint8 public  decimals;
  uint public totalSupply;
  
  function transfer(address _to, uint256 _value)public returns (bool success);
  function transferFrom(address _from, address _to, uint256 _value)public returns (bool success);
  function approve(address _spender, uint256 _value)public returns (bool success);
  function allowance(address _owner, address _spender)public view returns (uint256 remaining);
  
  event Transfer(address indexed _from, address indexed _to, uint256 _value);
  event Approval(address indexed _owner, address indexed _spender, uint256 _value);
 }
 
contract ERC20 is ERC20Interface,SafeMath{

    mapping(address => uint256) public balanceOf;

    mapping(address => mapping(address => uint256)) allowed;

    constructor(string memory _name) public {
       name = _name;  
       symbol = "bzc";
       decimals = 8;
       totalSupply = 20000000000000000;
       balanceOf[msg.sender] = totalSupply;
    }

  function transfer(address _to, uint256 _value)public returns (bool success) {
      require(_to != address(0));
      require(balanceOf[msg.sender] >= _value);
      require(balanceOf[ _to] + _value >= balanceOf[ _to]); 

      balanceOf[msg.sender] =SafeMath.safeSub(balanceOf[msg.sender],_value) ;
      balanceOf[_to] =SafeMath.safeAdd(balanceOf[_to],_value) ;

      emit Transfer(msg.sender, _to, _value);

      return true;
  }


  function transferFrom(address _from, address _to, uint256 _value)public returns (bool success) {
      require(_to != address(0));
      require(allowed[_from][msg.sender] >= _value);
      require(balanceOf[_from] >= _value);
      require(balanceOf[ _to] + _value >= balanceOf[ _to]);

      balanceOf[_from] =SafeMath.safeSub(balanceOf[_from],_value) ;
      balanceOf[_to] =SafeMath.safeAdd(balanceOf[_to],_value) ;

      allowed[_from][msg.sender] =SafeMath.safeSub(allowed[_from][msg.sender],_value) ;

      emit Transfer(msg.sender, _to, _value);
      return true;
  }

  function approve(address _spender, uint256 _value)public returns (bool success) {
      allowed[msg.sender][_spender] = _value;

      emit Approval(msg.sender, _spender, _value);
      return true;
  }

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

}

• 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":true,"inputs":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256"}],"name":"safeSub","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","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":"a","type":"uint256"},{"name":"b","type":"uint256"}],"name":"safeDiv","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[{"name":"assertion","type":"bool"}],"name":"_assert","outputs":[],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256"}],"name":"safeMul","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256"}],"name":"safeAdd","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"inputs":[{"name":"_name","type":"string"}],"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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

00000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000008627a63636861696e000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : _name (string): bzcchain

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000020
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000008
Arg [2] : 627a63636861696e000000000000000000000000000000000000000000000000

bzzr://2440fd9cb09d194360058f66fad961d723f86798508d3a40f8dff40d0421c445