creation_sourcecode: pragma solidity ^0.4.24;
   
   // ----------------------------------------------------------------------------
   // 'BDT' 'BitDonaTion Token' token contract
   //
   // Symbol      : BDT
   // Name        : BitDonaTion Token
   // Total supply: 5000,000,000.000000000000000000
   // Decimals    : 18
   //
   // Enjoy.
   //
   // (c) BokkyPooBah / Bok Consulting Pty Ltd 2018. The MIT Licence.
   // ----------------------------------------------------------------------------
   
   
   // ----------------------------------------------------------------------------
   // Safe maths
   // ----------------------------------------------------------------------------
   library SafeMath {
       function add(uint a, uint b) internal pure returns (uint c) {
           c = a + b;
           require(c >= a);
       }
       function sub(uint a, uint b) internal pure returns (uint c) {
           require(b <= a);
           c = a - b;
       }
       function mul(uint a, uint b) internal pure returns (uint c) {
           c = a * b;
           require(a == 0 || c / a == b);
       }
       function div(uint a, uint b) internal pure returns (uint c) {
           require(b > 0);
           c = a / b;
       }
   }
   
   
   // ----------------------------------------------------------------------------
   // ERC Token Standard #20 Interface
   // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
   // ----------------------------------------------------------------------------
   contract ERC20Interface {
       function totalSupply() public constant returns (uint);
       function balanceOf(address tokenOwner) public constant returns (uint balance);
       function allowance(address tokenOwner, address spender) public constant returns (uint remaining);
       function transfer(address to, uint tokens) public returns (bool success);
       function approve(address spender, uint tokens) public returns (bool success);
       function transferFrom(address from, address to, uint tokens) public returns (bool success);
   
       event Transfer(address indexed from, address indexed to, uint tokens);
       event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
   }
   
   
   // ----------------------------------------------------------------------------
   // Contract function to receive approval and execute function in one call
   //
   // Borrowed from MiniMeToken
   // ----------------------------------------------------------------------------
   contract ApproveAndCallFallBack {
       function receiveApproval(address from, uint256 tokens, address token, bytes data) public;
   }
   
   
   // ----------------------------------------------------------------------------
   // Owned contract
   // ----------------------------------------------------------------------------
   contract Owned {
       address public owner;
       address public newOwner;
   
       event OwnershipTransferred(address indexed _from, address indexed _to);
   
       constructor() public {
           owner = msg.sender;
       }
   
       modifier onlyOwner {
           require(msg.sender == owner);
           _;
       }
   
       function transferOwnership(address _newOwner) public onlyOwner {
           newOwner = _newOwner;
       }
       function acceptOwnership() public {
           require(msg.sender == newOwner);
           emit OwnershipTransferred(owner, newOwner);
           owner = newOwner;
           newOwner = address(0);
       }
   }
   
   
   // ----------------------------------------------------------------------------
   // ERC20 Token, with the addition of symbol, name and decimals and a
   // BitDonaTion
   // ----------------------------------------------------------------------------
   contract BitDonaTionToken is ERC20Interface, Owned {
       using SafeMath for uint;
   
       string public symbol;
       string public  name;
       uint8 public decimals;
       uint _totalSupply;
   
       mapping(address => uint) balances;
       mapping(address => mapping(address => uint)) allowed;
   
   
      // ------------------------------------------------------------------------
       // Constructor
       // ------------------------------------------------------------------------
       constructor() public {
           symbol = "BDT";
           name = "BitDonaTion Token";
           decimals = 18;
           _totalSupply = 5000000000 * 10**uint(decimals);
          balances[owner] = _totalSupply;
           emit Transfer(address(0), owner, _totalSupply);
       }
   
   
       // ------------------------------------------------------------------------
       // Total supply
       // ------------------------------------------------------------------------
       function totalSupply() public view returns (uint) {
           return _totalSupply.sub(balances[address(0)]);
       }
   
   
       // ------------------------------------------------------------------------
       // Get the token balance for account `tokenOwner`
       // ------------------------------------------------------------------------
       function balanceOf(address tokenOwner) public view returns (uint balance) {
           return balances[tokenOwner];
       }
   
   
       // ------------------------------------------------------------------------
       // Transfer the balance from token owner's account to `to` account
       // - Owner's account must have sufficient balance to transfer
       // - 0 value transfers are allowed
       // ------------------------------------------------------------------------
       function transfer(address to, uint tokens) public returns (bool success) {
           balances[msg.sender] = balances[msg.sender].sub(tokens);
           balances[to] = balances[to].add(tokens);
           emit Transfer(msg.sender, to, tokens);
           return true;
       }
   
   
       // ------------------------------------------------------------------------
       // Token owner can approve for `spender` to transferFrom(...) `tokens`
       // from the token owner's account
       //
       // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
       // recommends that there are no checks for the approval double-spend attack
       // as this should be implemented in user interfaces 
       // ------------------------------------------------------------------------
      function approve(address spender, uint tokens) public returns (bool success) {
           allowed[msg.sender][spender] = tokens;
           emit Approval(msg.sender, spender, tokens);
           return true;
       }
   
   
       // ------------------------------------------------------------------------
       // Transfer `tokens` from the `from` account to the `to` account
       // 
       // The calling account must already have sufficient tokens approve(...)-d
       // for spending from the `from` account and
       // - From account must have sufficient balance to transfer
       // - Spender must have sufficient allowance to transfer
       // - 0 value transfers are allowed
       // ------------------------------------------------------------------------
       function transferFrom(address from, address to, uint tokens) public returns (bool success) {
           balances[from] = balances[from].sub(tokens);
           allowed[from][msg.sender] = allowed[from][msg.sender].sub(tokens);
           balances[to] = balances[to].add(tokens);
           emit Transfer(from, to, tokens);
           return true;
       }
   
   
       // ------------------------------------------------------------------------
       // Returns the amount of tokens approved by the owner that can be
       // transferred to the spender's account
       // ------------------------------------------------------------------------
       function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
           return allowed[tokenOwner][spender];
       }
   
   
       // ------------------------------------------------------------------------
       // Token owner can approve for `spender` to transferFrom(...) `tokens`
       // from the token owner's account. The `spender` contract function
       // `receiveApproval(...)` is then executed
       // ------------------------------------------------------------------------
       function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) {
           allowed[msg.sender][spender] = tokens;
           emit Approval(msg.sender, spender, tokens);
           ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data);
           return true;
       }
   
   
       // ------------------------------------------------------------------------
       // Don't accept ETH
       // ------------------------------------------------------------------------
       function () public payable {
           revert();
       }
   
   
       // ------------------------------------------------------------------------
       // Owner can transfer out any accidentally sent ERC20 tokens
       // ------------------------------------------------------------------------
       function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
           return ERC20Interface(tokenAddress).transfer(owner, tokens);
       }
   }