Contract Source Code:
File 1 of 1 : SPLINK
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount)
external
returns (bool);
function allowance(address owner, address spender)
external
view
returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
constructor() {
_setOwner(_msgSender());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() external virtual onlyOwner {
_setOwner(address(0));
}
function transferOwnership(address newOwner) external virtual onlyOwner {
require(
newOwner != address(0),
"Ownable: new owner is the zero address"
);
_setOwner(newOwner);
}
function _setOwner(address newOwner) private {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
interface IUniswapV2Pair {
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
event Transfer(address indexed from, address indexed to, uint256 value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint256);
function balanceOf(address owner) external view returns (uint256);
function allowance(address owner, address spender)
external
view
returns (uint256);
function approve(address spender, uint256 value) external returns (bool);
function transfer(address to, uint256 value) external returns (bool);
function transferFrom(
address from,
address to,
uint256 value
) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint256);
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
event Mint(address indexed sender, uint256 amount0, uint256 amount1);
event Burn(
address indexed sender,
uint256 amount0,
uint256 amount1,
address indexed to
);
event Swap(
address indexed sender,
uint256 amount0In,
uint256 amount1In,
uint256 amount0Out,
uint256 amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint256);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves()
external
view
returns (
uint112 reserve0,
uint112 reserve1,
uint32 blockTimestampLast
);
function price0CumulativeLast() external view returns (uint256);
function price1CumulativeLast() external view returns (uint256);
function kLast() external view returns (uint256);
function mint(address to) external returns (uint256 liquidity);
function burn(address to)
external
returns (uint256 amount0, uint256 amount1);
function swap(
uint256 amount0Out,
uint256 amount1Out,
address to,
bytes calldata data
) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB)
external
returns (address pair);
function getPair(address tokenA, address tokenB)
external
view
returns (address pair);
}
interface IUniswapV2Router01 {
function factory() external pure returns (address);
// solhint-disable-next-line
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint256 amountADesired,
uint256 amountBDesired,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
)
external
returns (
uint256 amountA,
uint256 amountB,
uint256 liquidity
);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
function removeLiquidity(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
) external returns (uint256 amountA, uint256 amountB);
function removeLiquidityETH(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountToken, uint256 amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountA, uint256 amountB);
function removeLiquidityETHWithPermit(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountToken, uint256 amountETH);
function swapExactTokensForTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapTokensForExactTokens(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapExactETHForTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);
function swapTokensForExactETH(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapExactTokensForETH(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapETHForExactTokens(
uint256 amountOut,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);
function quote(
uint256 amountA,
uint256 reserveA,
uint256 reserveB
) external pure returns (uint256 amountB);
function getAmountOut(
uint256 amountIn,
uint256 reserveIn,
uint256 reserveOut
) external pure returns (uint256 amountOut);
function getAmountIn(
uint256 amountOut,
uint256 reserveIn,
uint256 reserveOut
) external pure returns (uint256 amountIn);
function getAmountsOut(uint256 amountIn, address[] calldata path)
external
view
returns (uint256[] memory amounts);
function getAmountsIn(uint256 amountOut, address[] calldata path)
external
view
returns (uint256[] memory amounts);
}
interface IUniswapV2Router is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountETH);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) internal _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account)
public
view
virtual
override
returns (uint256)
{
return _balances[account];
}
function transfer(address recipient, uint256 amount)
public
virtual
override
returns (bool)
{
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender)
public
view
virtual
override
returns (uint256)
{
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount)
public
virtual
override
returns (bool)
{
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(
currentAllowance >= amount,
"ERC20: transfer amount exceeds allowance"
);
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
function increaseAllowance(address spender, uint256 addedValue)
public
virtual
returns (bool)
{
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender] + addedValue
);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue)
public
virtual
returns (bool)
{
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(
currentAllowance >= subtractedValue,
"ERC20: decreased allowance below zero"
);
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(
senderBalance >= amount,
"ERC20: transfer amount exceeds balance"
);
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {} // solhint-disable-line
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {} // solhint-disable-line
}
interface ISPLINK is IERC20 {
event TaxAddressChanged(address newTaxAddress);
event TaxedTransferAddedFor(address[] addresses);
event TaxedTransferRemovedFor(address[] addresses);
event TaxTaken(uint256 teamFee);
event TaxChanged(Tax newFees);
struct Tax {
uint256 buyTax;
uint256 sellTax;
}
function currentFees() external view returns (Tax memory);
function taxedPair(address pair) external view returns (bool);
}
library Utils {
/**
* @dev Calculates the percentage of a number
* @param number: The number to calculate the percentage of
* @param percentage: The percentage of the number to return
* @return The percentage of a number
*/
function percentageOf(uint256 number, uint256 percentage)
internal
pure
returns (uint256)
{
return (number * percentage) / 100;
}
/**
* @dev Swaps an amount of tokens for ETH
* @param uniswapV2Router: The uniswap router to trade through
* @param amount: The amount of tokens to swap
* @param to: The address to send the recieved tokens to
* @return The amount of ETH recieved
*/
function swapForETH(
IUniswapV2Router uniswapV2Router,
uint256 amount,
address to
) internal returns (uint256) {
uint256 startingBalance = to.balance;
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
amount,
0,
path,
to,
block.timestamp
);
return to.balance - startingBalance;
}
/**
* @dev Adds liquidity for the token in ETH
* @param uniswapV2Router: The uniswap router to add liquidity through
* @param amountToken: The amount of tokens to add liquidity with
* @param amountETH: The amount of ETH to add liquidity with
* @param to: The address to send the recieved LP tokens to
*/
function addLiquidityETH(
IUniswapV2Router uniswapV2Router,
uint256 amountToken,
uint256 amountETH,
address to
) internal {
uniswapV2Router.addLiquidityETH{value: amountETH}(
address(this),
amountToken,
0,
0,
to,
block.timestamp
);
}
/**
* @param token: The address of the token to transfer
* @param from: The sender of the tokens
* @param to: The receiver of the tokens
* @param amount: The amount of tokens to transfer
*/
function transferTokens(
address token,
address from,
address to,
uint256 amount
) internal {
IERC20(token).transferFrom(from, to, amount);
}
/**
* @dev Returns the token for a Uniswap V2 Pair
*/
function tokenFor(address pair) internal view returns (address) {
return IUniswapV2Pair(pair).token0();
}
/**
* @dev Checks if transaction amount is below max
* @param amount: The amount to be transferred
*/
function isNotGreaterThanMaxTXLimit(uint256 amount) internal pure returns (bool) {
uint256 MAX_TX = 10000000000000 * 10**9;
return amount <= MAX_TX;
}
/**
* @dev Checks if wallet balance has reached max balance per wallet
* @param balanceOfWallet: the balance of wallet to be checked
*/
function balanceIsLessThanMax(uint256 balanceOfWallet ) internal pure returns (bool) {
uint256 MAX_BALANCE = 15000000000000 * 10**9;
return balanceOfWallet <= MAX_BALANCE;
}
}
contract SPLINK is ISPLINK, Ownable, ERC20 {
using SafeMath for uint256;
uint256 internal constant MAX = type(uint256).max;
uint256 private constant SUPPLY = 1000000000000000 * 10**9;
string internal constant NAME = "Space Link";
string internal constant SYMBOL = "SPLINK";
uint8 internal constant DECIMALS = 9;
mapping(address => address) internal _routerFor;
mapping(address => bool) private _isWhitelisted;
mapping(address => bool) private _isTaxExempted;
mapping (address => bool) private bots;
mapping (address => uint) private cooldown;
Tax private fees;
address payable internal _taxAddress;
IUniswapV2Router internal uniswapV2Router;
address internal uniswapV2Pair;
bool public tradingOpen;
bool public liquidityAdded;
bool private inSwap;
bool public swapEnabled;
bool private whiteListActive;
bool public cooldownEnabled;
modifier lockTheSwap() {
inSwap = true;
_;
inSwap = false;
}
constructor(address payable addr1) ERC20(NAME, SYMBOL) {
_taxAddress = addr1;
_mint(_msgSender(), SUPPLY);
fees = Tax(8,8);
}
function decimals() public pure virtual override returns (uint8) {
return DECIMALS;
}
function taxedPair(address pair)
public
view
virtual
override
returns (bool)
{
return _routerFor[pair] != address(0);
}
// Transfer, no events for fees
function transferFee(address from, uint256 amount) internal {
_balances[from] -= amount;
_balances[address(this)] += amount;
}
function takeFee(
address from,
uint256 amount,
uint256 teamFee
) internal returns (uint256) {
if (teamFee == 0) return 0;
uint256 tTeam = Utils.percentageOf(amount, teamFee);
transferFee(from, tTeam);
emit TaxTaken(tTeam);
return tTeam;
}
function _transfer(
address from,
address to,
uint256 amount
) internal virtual override {
// If no fee, 0
uint256 _teamFee;
if (from != owner() && to != owner()) {
require(!bots[from] && !bots[to], "SPLINK: Currrently tagged as a bot");
if (liquidityAdded) {
require(tradingOpen, "SPLINK: Trading is not Open");
if (whiteListActive) {
require(_isWhitelisted[to], "SPLINK: Address must be whitelisted");
}
if (swapEnabled && !inSwap) {
if (taxedPair(from) && !taxedPair(to)) {
uint256 walletBalance = balanceOf(to).add(amount);
// buying transfer
require(Utils.isNotGreaterThanMaxTXLimit(amount), "SPLINK: Max tx exceeded");
require(Utils.balanceIsLessThanMax(walletBalance), "SPLINK: Max holding exceeded");
if (cooldownEnabled) {
require(cooldown[to] < block.timestamp);
cooldown[to] = block.timestamp + (30 seconds);
}
_teamFee = _isTaxExempted[to] ? 0 : fees.buyTax;
} else if (taxedPair(to)) {
// selling transfer
swapTokensForEth(balanceOf(address(this)));
sendETHToFee(address(this).balance);
_teamFee = _isTaxExempted[from] ? 0 : fees.sellTax;
}
} else {
require(swapEnabled, "SPLINK: Swap must be enabled");
}
}
}
uint256 fee = takeFee(from, amount, _teamFee);
super._transfer(from, to, amount - fee);
}
function swapTokensForEth(uint256 tokenAmount) internal lockTheSwap {
Utils.swapForETH(uniswapV2Router, tokenAmount, address(this));
}
function sendETHToFee(uint256 amount) internal {
_taxAddress.transfer(amount);
}
function openTrading() external virtual onlyOwner {
require(liquidityAdded);
tradingOpen = true;
cooldownEnabled = true;
swapEnabled = true;
}
function toggleWhiteList(bool onOff) external virtual onlyOwner {
whiteListActive = onOff;
}
function addDEX(address pair, address router) public virtual onlyOwner {
require(!taxedPair(pair), "DEX already exists");
address tokenFor = Utils.tokenFor(pair);
_routerFor[pair] = router;
_approve(address(this), router, MAX);
IERC20(tokenFor).approve(router, MAX);
IERC20(pair).approve(router, MAX);
}
function removeDEX(address pair) external virtual onlyOwner {
require(taxedPair(pair), "DEX does not exist");
address tokenFor = Utils.tokenFor(pair);
address router = _routerFor[pair];
delete _routerFor[pair];
_approve(address(this), router, 0);
IERC20(tokenFor).approve(router, 0);
IERC20(pair).approve(router, 0);
}
function addLiquidity() external virtual onlyOwner lockTheSwap {
IUniswapV2Router _uniswapV2Router = IUniswapV2Router(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
addDEX(uniswapV2Pair, address(_uniswapV2Router));
Utils.addLiquidityETH(
uniswapV2Router,
balanceOf(address(this)),
address(this).balance,
owner()
);
liquidityAdded = true;
}
function setBots(address[] calldata bots_) public onlyOwner {
for (uint i = 0; i < bots_.length; i++) {
bots[bots_[i]] = true;
}
}
function delBot(address notbot) public onlyOwner {
bots[notbot] = false;
}
function addToWhiteList(address[] calldata addresses)
external
virtual
onlyOwner
{
for (uint256 i; i < addresses.length; i++) {
_isWhitelisted[addresses[i]] = true;
}
}
function removeFromWhiteList(address[] calldata addresses)
external
virtual
onlyOwner
{
for (uint256 i; i < addresses.length; i++) {
_isWhitelisted[addresses[i]] = false;
}
}
function addToTaxExempted(address[] calldata addresses)
external
virtual
onlyOwner
{
for (uint256 i; i < addresses.length; i++) {
_isTaxExempted[addresses[i]] = true;
}
}
function removeFromTaxExemption(address[] calldata addresses)
external
virtual
onlyOwner
{
for (uint256 i; i < addresses.length; i++) {
_isTaxExempted[addresses[i]] = false;
}
}
function setTaxAddress(address payable newTaxAddress) external onlyOwner {
_taxAddress = newTaxAddress;
emit TaxAddressChanged(newTaxAddress);
}
function manualswap() external onlyOwner {
swapTokensForEth(balanceOf(address(this)));
}
function manualsend() external onlyOwner {
sendETHToFee(address(this).balance);
}
function setSwapRouter(IUniswapV2Router newRouter) external onlyOwner {
require(liquidityAdded, "Add liquidity before doing this");
address weth = uniswapV2Router.WETH();
address newPair = IUniswapV2Factory(newRouter.factory()).getPair(
address(this),
weth
);
require(
newPair != address(0),
"WETH Pair does not exist for that router"
);
require(taxedPair(newPair), "The pair must be a taxed pair");
(uint256 reservesOld, , ) = IUniswapV2Pair(uniswapV2Pair).getReserves();
(uint256 reservesNew, , ) = IUniswapV2Pair(newPair).getReserves();
require(
reservesNew > reservesOld,
"New pair must have more WETH Reserves"
);
uniswapV2Router = newRouter;
uniswapV2Pair = newPair;
}
function setBuyTax(uint256 newBuyTax) public onlyOwner {
require(newBuyTax <= 8, "SPLINK: Buy Tax must be less than or eqaul to 8");
fees = Tax(newBuyTax, fees.sellTax);
emit TaxChanged(fees);
}
function setSellTax(uint256 newSellTax) public onlyOwner {
require(newSellTax <= 8, "SPLINK: Sell Tax must be less than or eqaul to 8");
fees = Tax(fees.buyTax, newSellTax);
emit TaxChanged(fees);
}
function setCooldownEnabled(bool onoff) external onlyOwner() {
cooldownEnabled = onoff;
}
function currentFees() external view override returns (Tax memory) {
return fees;
}
// solhint-disable-next-line
receive() external payable virtual {}
}
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}