Created
April 1, 2022 21:50
-
-
Save subelsky/e21b26889fcac43b111185c4cd81f531 to your computer and use it in GitHub Desktop.
Created using remix-ide: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at https://remix.ethereum.org/#version=soljson-v0.8.7+commit.e28d00a7.js&optimize=false&runs=200&gist=
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
pragma solidity ^0.8.7; | |
// ---------------------------------------------------------------------------- | |
// ERC Token Standard #20 Interface | |
// | |
// ---------------------------------------------------------------------------- | |
abstract contract ERC20Interface { | |
function totalSupply() virtual public view returns (uint); | |
function balanceOf(address tokenOwner) virtual public view returns (uint balance); | |
function allowance(address tokenOwner, address spender) virtual public view returns (uint remaining); | |
function transfer(address to, uint tokens) virtual public returns (bool success); | |
function approve(address spender, uint tokens) virtual public returns (bool success); | |
function transferFrom(address from, address to, uint tokens) virtual public returns (bool success); | |
event Transfer(address indexed from, address indexed to, uint tokens); | |
event Approval(address indexed tokenOwner, address indexed spender, uint tokens); | |
} | |
// ---------------------------------------------------------------------------- | |
// Safe Math Library | |
// ---------------------------------------------------------------------------- | |
contract SafeMath { | |
function safeAdd(uint a, uint b) public pure returns (uint c) { | |
c = a + b; | |
require(c >= a); | |
} | |
function safeSub(uint a, uint b) public pure returns (uint c) { | |
require(b <= a); c = a - b; } function safeMul(uint a, uint b) public pure returns (uint c) { c = a * b; require(a == 0 || c / a == b); } function safeDiv(uint a, uint b) public pure returns (uint c) { require(b > 0); | |
c = a / b; | |
} | |
} | |
contract FleetwoodToken is ERC20Interface, SafeMath { | |
string public name; | |
string public symbol; | |
uint8 public decimals; // 18 decimals is the strongly suggested default, avoid changing it | |
uint256 public _totalSupply; | |
mapping(address => uint) balances; | |
mapping(address => mapping(address => uint)) allowed; | |
/** | |
* Constrctor function | |
* | |
* Initializes contract with initial supply tokens to the creator of the contract | |
*/ | |
constructor() { | |
name = "FleetwoodToken"; | |
symbol = "FAM"; | |
decimals = 18; | |
_totalSupply = 100000000000000000000000000; | |
balances[msg.sender] = _totalSupply; | |
emit Transfer(address(0), msg.sender, _totalSupply); | |
} | |
function totalSupply() override public view returns (uint) { | |
return _totalSupply - balances[address(0)]; | |
} | |
function balanceOf(address tokenOwner) override public view returns (uint balance) { | |
return balances[tokenOwner]; | |
} | |
function allowance(address tokenOwner, address spender) override public view returns (uint remaining) { | |
return allowed[tokenOwner][spender]; | |
} | |
function approve(address spender, uint tokens) override public returns (bool success) { | |
allowed[msg.sender][spender] = tokens; | |
emit Approval(msg.sender, spender, tokens); | |
return true; | |
} | |
function transfer(address to, uint tokens) override public returns (bool success) { | |
balances[msg.sender] = safeSub(balances[msg.sender], tokens); | |
balances[to] = safeAdd(balances[to], tokens); | |
emit Transfer(msg.sender, to, tokens); | |
return true; | |
} | |
function transferFrom(address from, address to, uint tokens) override public returns (bool success) { | |
balances[from] = safeSub(balances[from], tokens); | |
allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); | |
balances[to] = safeAdd(balances[to], tokens); | |
emit Transfer(from, to, tokens); | |
return true; | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment