pragma solidity >=0.4.23 <0.6.0; interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address who) external view returns (uint256); function allowance(address owner, address spender) external view returns (uint256); function transfer(address to, uint256 value) external returns (bool); function approve(address spender, uint256 value) external returns (bool); function transferFrom(address from, address to, uint256 value) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; assert(c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a / b; return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } function ceil(uint256 a, uint256 m) internal pure returns (uint256) { uint256 c = add(a,m); uint256 d = sub(c,1); return mul(div(d,m),m); } } contract ApproveAndCallFallBack { function receiveApproval(address from, uint256 tokens, address token, bytes memory data) public; } contract VoidToken is IERC20 { using SafeMath for uint256; string constant tokenName = "Void Token"; string constant tokenSymbol = "VOID"; uint8 constant tokenDecimals = 18; // 18 decimal places uint256 public totalSupply = 10000000e18; // 10m VOID supply uint256 constant burnPercentage = 3; // 3% burning percentage uint256 constant totalPercent = 100; // 100% percent mapping (address => uint256) private balances; mapping (address => mapping (address => uint256)) private allowed; constructor() public { _mint(msg.sender, totalSupply.div(2)); // 50% to formal airdrop wallet 411ebad5e0db6be9ffa93f22d689ec0e6ecdd267e7 _mint(0xa37c447D56fF886F956276a75A34A2f5a4A0334A, totalSupply.mul(4).div(10));// 40% to promo wallet 41a37c447d56ff886f956276a75a34a2f5a4a0334a _mint(0xF80C654aA6B38C4Ea95576E8fed552e250f27DEB, totalSupply.div(10));// 10% to dev wallet 41f80c654aa6b38c4ea95576e8fed552e250f27deb } function name() public pure returns(string memory) { return tokenName; } function symbol() public pure returns(string memory) { return tokenSymbol; } function decimals() public pure returns(uint8) { return tokenDecimals; } function totalSupply() public view returns (uint256) { return totalSupply; } function balanceOf(address owner) public view returns (uint256) { return balances[owner]; } function allowance(address owner, address spender) public view returns (uint256) { return allowed[owner][spender]; } function transfer(address to, uint256 value) public returns (bool) { require(value <= balances[msg.sender]); require(to != address(0)); uint256 tokensToBurn = value.mul(burnPercentage).div(totalPercent); uint256 tokensToTransfer = value.sub(tokensToBurn); balances[msg.sender] = balances[msg.sender].sub(value); balances[to] = balances[to].add(tokensToTransfer); totalSupply = totalSupply.sub(tokensToBurn); emit Transfer(msg.sender, to, tokensToTransfer); emit Transfer(msg.sender, address(0), tokensToBurn); return true; } function multiTransfer(address[] memory receivers, uint256[] memory amounts) public { for (uint256 i = 0; i < receivers.length; i++) { transfer(receivers[i], amounts[i]); } } function approveAndCall(address spender, uint value, bytes memory data) public returns (bool success) { require(spender != address(0)); allowed[msg.sender][spender] = value; emit Approval(msg.sender, spender, value); if (isContract(spender)) { ApproveAndCallFallBack(spender).receiveApproval(msg.sender, value, address(this), data); } return true; } function approve(address spender, uint256 value) public returns (bool) { require(spender != address(0)); allowed[msg.sender][spender] = value; emit Approval(msg.sender, spender, value); return true; } function transferFrom(address from, address to, uint256 value) public returns (bool) { require(value <= balances[from]); require(value <= allowed[from][msg.sender]); require(to != address(0)); balances[from] = balances[from].sub(value); uint256 tokensToBurn = value.mul(burnPercentage).div(totalPercent); uint256 tokensToTransfer = value.sub(tokensToBurn); balances[to] = balances[to].add(tokensToTransfer); totalSupply = totalSupply.sub(tokensToBurn); allowed[from][msg.sender] = allowed[from][msg.sender].sub(value); emit Transfer(from, to, tokensToTransfer); emit Transfer(from, address(0), tokensToBurn); return true; } function increaseAllowance(address spender, uint256 addedValue) public returns (bool) { require(spender != address(0)); allowed[msg.sender][spender] = (allowed[msg.sender][spender].add(addedValue)); emit Approval(msg.sender, spender, allowed[msg.sender][spender]); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) { require(spender != address(0)); allowed[msg.sender][spender] = (allowed[msg.sender][spender].sub(subtractedValue)); emit Approval(msg.sender, spender, allowed[msg.sender][spender]); return true; } function _mint(address account, uint256 amount) internal { require(amount != 0); balances[account] = balances[account].add(amount); emit Transfer(address(0), account, amount); } function burn(uint256 amount) external { _burn(msg.sender, amount); } function burnFrom(address account, uint256 amount) external { require(amount <= allowed[account][msg.sender]); allowed[account][msg.sender] = allowed[account][msg.sender].sub(amount); _burn(account, amount); } function _burn(address account, uint256 amount) internal { require(amount != 0); require(amount <= balances[account]); totalSupply = totalSupply.sub(amount); balances[account] = balances[account].sub(amount); emit Transfer(account, address(0), amount); } function isContract(address _addr) private view returns (bool hasCode) { uint length; assembly { length := extcodesize(_addr) } return length > 0; } }
0.4.25