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// This contract is part of Zellic’s smart contract dataset, which is a collection of publicly available contract code gathered as of March 2023. |
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// SPDX-License-Identifier: MIT
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/**
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Frens - Often what you see does not matter and what matters one cannot see
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--::----:.:-===-=----====--+----=--------.:-+-==================--:----==+++=---=-:-:-----
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=::-++=-++=+=--==+=--+==---++-=:-:=---:---=:-==+-======-======--=:-:==++=:+--=++-::+=-----
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=-======++*:---::++===:--+----:----==-==+-=-=-------=-:-:-=====----:--:---=-----=:*+==-+==
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++=**+=---:==-===:-+=+-:-=-==-=-+*++----::---=----=---===-------=--===-------:=-=+=+-==+*=
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+---===--==-:-=-:--=-====-:---===+=---======-==-------::::====-------==++--+=*==*+*===*==+
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-----==-----=-----:-:------=++=+++====-==----++*=+++=++=-------====----=++=+
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+--=+=====-----::----++==+++-=--:---::-::::-====--+===-====+=+=--::::--===+*=+-====----:--
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++++=====---=----=--=:=+==+-++=:==---:::---========-==+---:-=+-++====-----=++--=:--==--=:-
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-::==--=-=-=----=--:-++=:=++++===--=++*****++***+++*++=------=--====-=---:::-=+*:---:=*-:-
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=-:-::::::=:++-:---===++====-==++=+***+++=====++**+=+****+===----===+-==-=-::::=*+++=:--=-
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--===--:==-+=:-===-==++=-------=++++
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--::---==-::--==:-:::=+=+++==++***+
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--=-:*==-:::----=-:.::.::---=**+*
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:+---+=---====-:.-:.::---*%%
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+=:=--==-----. :-::::----
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=---=+-=-=-=--:-..::--:=-=
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***+=+=====-:--::::---.:=
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++++*-*--=.::.::--:--=*
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==+*+++=:-.=...:-+
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--+++===-.:-.::=
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-===+==-=:=:::=+
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=++*=---=-=::-=+
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+++*=-::=-:.:-=
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=+-:-=:----=+
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+--+=--:.-+%%
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+++:---::+=
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-==:=:=:-==:*%*+=====-------------++++----------=-.....:.......-=-==+==++**
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+==:=:-=-===-%
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+*=-=.-==-:==
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+=*:=-=-:.-+=
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=+==:-=::--=*%
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===-==::==+
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=--::.-=+=*%%
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-==.:--++-=*
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=------+=:=+
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-=:=--==-:-++
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:---=:=-::-+*%
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.-=--=+--:-+%%
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:::=-+--=-:=*+***+-...... ..:::::.....=----+++*+-:...-:::......:::::---==+**
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::-:-=+===-=*
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-===-===++==*
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--:-=-+=+-++*+++=+++=...... .......:..::-===::::---:-.........::----+
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=+=+=+==::-+=++*++++++:...........:...:-:..... ...:-=-.......:-:--+
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=----==:::==:=++++*++++-...............:------::----=-...........:::=***
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-----+-:=-===-*****+=-:..:...........:::::::::---::::::.....:::..::..:-+
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--::-++++-=-=*+++*+---:.............::.:::----=-::..:...........:.::.....+*+**
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--=+==++=++++++*+-:::.................:.-=-----=..........................*++++**
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--=--=+**+==++*=--.:.................:.======-==:.........................**++===+++*
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+=+=*++=====++=:..:.......:::.......:.-------==:-...:...................:-:-=++======++*
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-+=++=====++-.::::-:.:...---.........----------==::.:::.::::.....:::.::::::.:==++=====++++
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++++=====+--:..:.:-::=-:::-...:::..:------------=--::-=-:..:::-:::.::::::::...:-++++++===+
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=+=======-:::..::.....-==.::::.:=-::.:---:....:=***
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======++++-=+*
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++=*+=-=--====+*
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+=*++++++++======**%%%%
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+**
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%
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*
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*
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**%%%%%%
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*/
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pragma solidity ^0.8.0;
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abstract contract Context {
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function _msgSender() internal view virtual returns (address) {
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return msg.sender;
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}
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function _msgData() internal view virtual returns (bytes calldata) {
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return msg.data;
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}
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}
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pragma solidity ^0.8.0;
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interface IERC20 {
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event Transfer(address indexed from, address indexed to, uint256 value);
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event Approval(address indexed owner, address indexed spender, uint256 value);
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function totalSupply() external view returns (uint256);
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function balanceOf(address account) external view returns (uint256);
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function transfer(address to, uint256 amount) external returns (bool);
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function allowance(address owner, address spender) external view returns (uint256);
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function approve(address spender, uint256 amount) external returns (bool);
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function transferFrom(
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address from,
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address to,
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uint256 amount
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) external returns (bool);
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}
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pragma solidity ^0.8.0;
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interface IERC20Metadata is IERC20 {
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function name() external view returns (string memory);
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function symbol() external view returns (string memory);
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function decimals() external view returns (uint8);
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}
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pragma solidity ^0.8.0;
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contract SEIJIN is Context, IERC20, IERC20Metadata {
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mapping(address => uint256) private _balances;
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mapping(address => mapping(address => uint256)) private _allowances;
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uint256 private _totalSupply;
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string private _name;
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string private _symbol;
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constructor (string memory name_, string memory symbol_, uint256 totalSupply_) {
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_name = name_;
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_symbol = symbol_;
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_totalSupply = totalSupply_;
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_balances[msg.sender] = totalSupply_;
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emit Transfer(address(0), msg.sender, totalSupply_); // Optional
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}
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function name() public view virtual override returns (string memory) {
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return _name;
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}
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function symbol() public view virtual override returns (string memory) {
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return _symbol;
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}
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function decimals() public view virtual override returns (uint8) {
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return 18;
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}
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function totalSupply() public view virtual override returns (uint256) {
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return _totalSupply;
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}
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function balanceOf(address account) public view virtual override returns (uint256) {
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return _balances[account];
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}
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function transfer(address to, uint256 amount) public virtual override returns (bool) {
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address owner = _msgSender();
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_transfer(owner, to, amount);
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return true;
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}
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function allowance(address owner, address spender) public view virtual override returns (uint256) {
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return _allowances[owner][spender];
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}
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function approve(address spender, uint256 amount) public virtual override returns (bool) {
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address owner = _msgSender();
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_approve(owner, spender, amount);
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return true;
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}
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function transferFrom(
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address from,
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address to,
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uint256 amount
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) public virtual override returns (bool) {
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address spender = _msgSender();
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_spendAllowance(from, spender, amount);
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_transfer(from, to, amount);
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return true;
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}
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function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
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address owner = _msgSender();
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_approve(owner, spender, allowance(owner, spender) + addedValue);
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return true;
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}
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function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
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address owner = _msgSender();
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uint256 currentAllowance = allowance(owner, spender);
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require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
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unchecked {
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_approve(owner, spender, currentAllowance - subtractedValue);
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}
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return true;
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}
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function _transfer(
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address from,
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address to,
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uint256 amount
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) internal virtual {
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require(from != address(0), "ERC20: transfer from the zero address");
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require(to != address(0), "ERC20: transfer to the zero address");
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_beforeTokenTransfer(from, to, amount);
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uint256 fromBalance = _balances[from];
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require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
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unchecked {
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_balances[from] = fromBalance - amount;
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}
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_balances[to] += amount;
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emit Transfer(from, to, amount);
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_afterTokenTransfer(from, to, amount);
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}
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function _approve(
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address owner,
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address spender,
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uint256 amount
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) internal virtual {
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require(owner != address(0), "ERC20: approve from the zero address");
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require(spender != address(0), "ERC20: approve to the zero address");
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_allowances[owner][spender] = amount;
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emit Approval(owner, spender, amount);
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}
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function _spendAllowance(
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address owner,
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address spender,
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uint256 amount
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) internal virtual {
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uint256 currentAllowance = allowance(owner, spender);
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if (currentAllowance != type(uint256).max) {
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require(currentAllowance >= amount, "ERC20: insufficient allowance");
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unchecked {
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_approve(owner, spender, currentAllowance - amount);
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}
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}
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}
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function _beforeTokenTransfer(
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address from,
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address to,
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uint256 amount
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) internal virtual {}
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function _afterTokenTransfer(
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address from,
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address to,
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uint256 amount
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) internal virtual {}
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} |
