GitHub repository: neftari/bep20
Created: 2021-03-28T16:30:31Z
Description:   pragma solidity 0.5.16;  interface IBEP20 {   /**    * @dev Returns the amount of tokens in existence.    */   function totalSupply() external view returns (uint256);    /**    * @dev Returns the token decimals.    */   function decimals() external view returns (uint8);    /**    * @dev Returns the token symbol.    */   function symbol() external view returns (string memory);    /**   * @dev Returns the token name.   */   function name() external view returns (string memory);    /**    * @dev Returns the bep token owner.    */   function getOwner() external view returns (address);    /**    * @dev Returns the amount of tokens owned by `account`.    */   function balanceOf(address account) external view returns (uint256);    /**    * @dev Moves `amount` tokens from the caller's account to `recipient`.    *    * Returns a boolean value indicating whether the operation succeeded.    *    * Emits a {Transfer} event.    */   function transfer(address recipient, uint256 amount) external returns (bool);    /**    * @dev Returns the remaining number of tokens that `spender` will be    * allowed to spend on behalf of `owner` through {transferFrom}. This is    * zero by default.    *    * This value changes when {approve} or {transferFrom} are called.    */   function allowance(address _owner, address spender) external view returns (uint256);    /**    * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.    *    * Returns a boolean value indicating whether the operation succeeded.    *    * IMPORTANT: Beware that changing an allowance with this method brings the risk    * that someone may use both the old and the new allowance by unfortunate    * transaction ordering. One possible solution to mitigate this race    * condition is to first reduce the spender's allowance to 0 and set the    * desired value afterwards:    * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729    *    * Emits an {Approval} event.    */   function approve(address spender, uint256 amount) external returns (bool);    /**    * @dev Moves `amount` tokens from `sender` to `recipient` using the    * allowance mechanism. `amount` is then deducted from the caller's    * allowance.    *    * Returns a boolean value indicating whether the operation succeeded.    *    * Emits a {Transfer} event.    */   function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);    /**    * @dev Emitted when `value` tokens are moved from one account (`from`) to    * another (`to`).    *    * Note that `value` may be zero.    */   event Transfer(address indexed from, address indexed to, uint256 value);    /**    * @dev Emitted when the allowance of a `spender` for an `owner` is set by    * a call to {approve}. `value` is the new allowance.    */   event Approval(address indexed owner, address indexed spender, uint256 value); }  /*  * @dev Provides information about the current execution context, including the  * sender of the transaction and its data. While these are generally available  * via msg.sender and msg.data, they should not be accessed in such a direct  * manner, since when dealing with GSN meta-transactions the account sending and  * paying for execution may not be the actual sender (as far as an application  * is concerned).  *  * This contract is only required for intermediate, library-like contracts.  */ contract Context {   // Empty internal constructor, to prevent people from mistakenly deploying   // an instance of this contract, which should be used via inheritance.   constructor () internal { }    function _msgSender() internal view returns (address payable) {     return msg.sender;   }    function _msgData() internal view returns (bytes memory) {     this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691     return msg.data;   } }  /**  * @dev Wrappers over Solidity's arithmetic operations with added overflow  * checks.  *  * Arithmetic operations in Solidity wrap on overflow. This can easily result  * in bugs, because programmers usually assume that an overflow raises an  * error, which is the standard behavior in high level programming languages.  * `SafeMath` restores this intuition by reverting the transaction when an  * operation overflows.  *  * Using this library instead of the unchecked operations eliminates an entire  * class of bugs, so it's recommended to use it always.  */ library SafeMath {   /**    * @dev Returns the addition of two unsigned integers, reverting on    * overflow.    *    * Counterpart to Solidity's `+` operator.    *    * Requirements:    * - Addition cannot overflow.    */   function add(uint256 a, uint256 b) internal pure returns (uint256) {     uint256 c = a + b;     require(c >= a, "SafeMath: addition overflow");      return c;   }    /**    * @dev Returns the subtraction of two unsigned integers, reverting on    * overflow (when the result is negative).    *    * Counterpart to Solidity's `-` operator.    *    * Requirements:    * - Subtraction cannot overflow.    */   function sub(uint256 a, uint256 b) internal pure returns (uint256) {     return sub(a, b, "SafeMath: subtraction overflow");   }    /**    * @dev Returns the subtraction of two unsigned integers, reverting with custom message on    * overflow (when the result is negative).    *    * Counterpart to Solidity's `-` operator.    *    * Requirements:    * - Subtraction cannot overflow.    */   function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {     require(b <= a, errorMessage);     uint256 c = a - b;      return c;   }    /**    * @dev Returns the multiplication of two unsigned integers, reverting on    * overflow.    *    * Counterpart to Solidity's `*` operator.    *    * Requirements:    * - Multiplication cannot overflow.    */   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;   }    /**    * @dev Returns the integer division of two unsigned integers. Reverts on    * division by zero. The result is rounded towards zero.    *    * Counterpart to Solidity's `/` operator. Note: this function uses a    * `revert` opcode (which leaves remaining gas untouched) while Solidity    * uses an invalid opcode to revert (consuming all remaining gas).    *    * Requirements:    * - The divisor cannot be zero.    */   function div(uint256 a, uint256 b) internal pure returns (uint256) {     return div(a, b, "SafeMath: division by zero");   }    /**    * @dev Returns the integer division of two unsigned integers. Reverts with custom message on    * division by zero. The result is rounded towards zero.    *    * Counterpart to Solidity's `/` operator. Note: this function uses a    * `revert` opcode (which leaves remaining gas untouched) while Solidity    * uses an invalid opcode to revert (consuming all remaining gas).    *    * Requirements:    * - The divisor cannot be zero.    */   function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {     // Solidity only automatically asserts when dividing by 0     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;   }    /**    * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),    * Reverts when dividing by zero.    *    * Counterpart to Solidity's `%` operator. This function uses a `revert`    * opcode (which leaves remaining gas untouched) while Solidity uses an    * invalid opcode to revert (consuming all remaining gas).    *    * Requirements:    * - The divisor cannot be zero.    */   function mod(uint256 a, uint256 b) internal pure returns (uint256) {     return mod(a, b, "SafeMath: modulo by zero");   }    /**    * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),    * Reverts with custom message when dividing by zero.    *    * Counterpart to Solidity's `%` operator. This function uses a `revert`    * opcode (which leaves remaining gas untouched) while Solidity uses an    * invalid opcode to revert (consuming all remaining gas).    *    * Requirements:    * - The divisor cannot be zero.    */   function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {     require(b != 0, errorMessage);     return a % b;   } }  /**  * @dev Contract module which provides a basic access control mechanism, where  * there is an account (an owner) that can be granted exclusive access to  * specific functions.  *  * By default, the owner account will be the one that deploys the contract. This  * can later be changed with {transferOwnership}.  *  * This module is used through inheritance. It will make available the modifier  * `onlyOwner`, which can be applied to your functions to restrict their use to  * the owner.  */ 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 () internal {     address msgSender = _msgSender();     _owner = msgSender;     emit OwnershipTransferred(address(0), msgSender);   }    /**    * @dev Returns the address of the current owner.    */   function owner() public view 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 onlyOwner {     emit OwnershipTransferred(_owner, address(0));     _owner = 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 onlyOwner {     _transferOwnership(newOwner);   }    /**    * @dev Transfers ownership of the contract to a new account (`newOwner`).    */   function _transferOwnership(address newOwner) internal {     require(newOwner != address(0), "Ownable: new owner is the zero address");     emit OwnershipTransferred(_owner, newOwner);     _owner = newOwner;   } }  contract BEP20Token is Context, IBEP20, Ownable {   using SafeMath for uint256;    mapping (address => uint256) private _balances;    mapping (address => mapping (address => uint256)) private _allowances;    uint256 private _totalSupply;   uint8 private _decimals;   string private _symbol;   string private _name;    constructor() public {     _name = {{TOKEN_NAME}};     _symbol = {{TOKEN_SYMBOL}};     _decimals = {{DECIMALS}};     _totalSupply = {{TOTAL_SUPPLY}};     _balances[msg.sender] = _totalSupply;      emit Transfer(address(0), msg.sender, _totalSupply);   }    /**    * @dev Returns the bep token owner.    */   function getOwner() external view returns (address) {     return owner();   }    /**    * @dev Returns the token decimals.    */   function decimals() external view returns (uint8) {     return _decimals;   }    /**    * @dev Returns the token symbol.    */   function symbol() external view returns (string memory) {     return _symbol;   }    /**   * @dev Returns the token name.   */   function name() external view returns (string memory) {     return _name;   }    /**    * @dev See {BEP20-totalSupply}.    */   function totalSupply() external view returns (uint256) {     return _totalSupply;   }    /**    * @dev See {BEP20-balanceOf}.    */   function balanceOf(address account) external view returns (uint256) {     return _balances[account];   }    /**    * @dev See {BEP20-transfer}.    *    * Requirements:    *    * - `recipient` cannot be the zero address.    * - the caller must have a balance of at least `amount`.    */   function transfer(address recipient, uint256 amount) external returns (bool) {     _transfer(_msgSender(), recipient, amount);     return true;   }    /**    * @dev See {BEP20-allowance}.    */   function allowance(address owner, address spender) external view returns (uint256) {     return _allowances[owner][spender];   }    /**    * @dev See {BEP20-approve}.    *    * Requirements:    *    * - `spender` cannot be the zero address.    */   function approve(address spender, uint256 amount) external returns (bool) {     _approve(_msgSender(), spender, amount);     return true;   }    /**    * @dev See {BEP20-transferFrom}.    *    * Emits an {Approval} event indicating the updated allowance. This is not    * required by the EIP. See the note at the beginning of {BEP20};    *    * Requirements:    * - `sender` and `recipient` cannot be the zero address.    * - `sender` must have a balance of at least `amount`.    * - the caller must have allowance for `sender`'s tokens of at least    * `amount`.    */   function transferFrom(address sender, address recipient, uint256 amount) external returns (bool) {     _transfer(sender, recipient, amount);     _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "BEP20: transfer amount exceeds allowance"));     return true;   }    /**    * @dev Atomically increases the allowance granted to `spender` by the caller.    *    * This is an alternative to {approve} that can be used as a mitigation for    * problems described in {BEP20-approve}.    *    * Emits an {Approval} event indicating the updated allowance.    *    * Requirements:    *    * - `spender` cannot be the zero address.    */   function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {     _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));     return true;   }    /**    * @dev Atomically decreases the allowance granted to `spender` by the caller.    *    * This is an alternative to {approve} that can be used as a mitigation for    * problems described in {BEP20-approve}.    *    * Emits an {Approval} event indicating the updated allowance.    *    * Requirements:    *    * - `spender` cannot be the zero address.    * - `spender` must have allowance for the caller of at least    * `subtractedValue`.    */   function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {     _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "BEP20: decreased allowance below zero"));     return true;   }    /**    * @dev Creates `amount` tokens and assigns them to `msg.sender`, increasing    * the total supply.    *    * Requirements    *    * - `msg.sender` must be the token owner    */   function mint(uint256 amount) public onlyOwner returns (bool) {     _mint(_msgSender(), amount);     return true;   }    /**    * @dev Moves tokens `amount` from `sender` to `recipient`.    *    * This is internal function is equivalent to {transfer}, and can be used to    * e.g. implement automatic token fees, slashing mechanisms, etc.    *    * Emits a {Transfer} event.    *    * Requirements:    *    * - `sender` cannot be the zero address.    * - `recipient` cannot be the zero address.    * - `sender` must have a balance of at least `amount`.    */   function _transfer(address sender, address recipient, uint256 amount) internal {     require(sender != address(0), "BEP20: transfer from the zero address");     require(recipient != address(0), "BEP20: transfer to the zero address");      _balances[sender] = _balances[sender].sub(amount, "BEP20: transfer amount exceeds balance");     _balances[recipient] = _balances[recipient].add(amount);     emit Transfer(sender, recipient, amount);   }    /** @dev Creates `amount` tokens and assigns them to `account`, increasing    * the total supply.    *    * Emits a {Transfer} event with `from` set to the zero address.    *    * Requirements    *    * - `to` cannot be the zero address.    */   function _mint(address account, uint256 amount) internal {     require(account != address(0), "BEP20: mint to the zero address");      _totalSupply = _totalSupply.add(amount);     _balances[account] = _balances[account].add(amount);     emit Transfer(address(0), account, amount);   }    /**    * @dev Destroys `amount` tokens from `account`, reducing the    * total supply.    *    * Emits a {Transfer} event with `to` set to the zero address.    *    * Requirements    *    * - `account` cannot be the zero address.    * - `account` must have at least `amount` tokens.    */   function _burn(address account, uint256 amount) internal {     require(account != address(0), "BEP20: burn from the zero address");      _balances[account] = _balances[account].sub(amount, "BEP20: burn amount exceeds balance");     _totalSupply = _totalSupply.sub(amount);     emit Transfer(account, address(0), amount);   }    /**    * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.    *    * This is internal function is equivalent to `approve`, and can be used to    * e.g. set automatic allowances for certain subsystems, etc.    *    * Emits an {Approval} event.    *    * Requirements:    *    * - `owner` cannot be the zero address.    * - `spender` cannot be the zero address.    */   function _approve(address owner, address spender, uint256 amount) internal {     require(owner != address(0), "BEP20: approve from the zero address");     require(spender != address(0), "BEP20: approve to the zero address");      _allowances[owner][spender] = amount;     emit Approval(owner, spender, amount);   }    /**    * @dev Destroys `amount` tokens from `account`.`amount` is then deducted    * from the caller's allowance.    *    * See {_burn} and {_approve}.    */   function _burnFrom(address account, uint256 amount) internal {     _burn(account, amount);     _approve(account, _msgSender(), _allowances[account][_msgSender()].sub(amount, "BEP20: burn amount exceeds allowance"));   } }