17.71
($-1.80%)
| 1 Gwei
pragma solidity ^0.4.24; contract ERC223 { uint public totalSupply; function balanceOf(address who) constant returns (uint); function name() constant returns (string _name); function symbol() constant returns (string _symbol); function decimals() constant returns (uint8 _decimals); function totalSupply() constant returns (uint256 _supply); function transfer(address to, uint value) returns (bool ok); function transfer(address to, uint value, bytes data) returns (bool ok); event Transfer(address indexed _from, address indexed _to, uint256 _value); event ERC223Transfer(address indexed _from, address indexed _to, uint256 _value, bytes _data); } contract ContractReceiver { function tokenFallback(address _from, uint _value, bytes _data); } contract ERC223Token is ERC223 { using SafeMath for uint; mapping(address => uint) balances; string public name; string public symbol; uint8 public decimals; uint256 public totalSupply; // Function to access name of token . function name() constant returns (string _name) { return name; } // Function to access symbol of token . function symbol() constant returns (string _symbol) { return symbol; } // Function to access decimals of token . function decimals() constant returns (uint8 _decimals) { return decimals; } // Function to access total supply of tokens . function totalSupply() constant returns (uint256 _totalSupply) { return totalSupply; } // Function that is called when a user or another contract wants to transfer funds . function transfer(address _to, uint _value, bytes _data) returns (bool success) { if(isContract(_to)) { return transferToContract(_to, _value, _data); } else { return transferToAddress(_to, _value, _data); } } // Standard function transfer similar to ERC20 transfer with no _data . // Added due to backwards compatibility reasons . function transfer(address _to, uint _value) returns (bool success) { //standard function transfer similar to ERC20 transfer with no _data //added due to backwards compatibility reasons bytes memory empty; if(isContract(_to)) { return transferToContract(_to, _value, empty); } else { return transferToAddress(_to, _value, empty); } } //assemble the given address bytecode. If bytecode exists then the _addr is a contract. function isContract(address _addr) private returns (bool is_contract) { uint length; assembly { //retrieve the size of the code on target address, this needs assembly length := extcodesize(_addr) } if(length>0) { return true; } else { return false; } } //function that is called when transaction target is an address function transferToAddress(address _to, uint _value, bytes _data) private returns (bool success) { if (balanceOf(msg.sender) < _value) revert(); balances[msg.sender] = balanceOf(msg.sender).sub(_value); balances[_to] = balanceOf(_to).add(_value); Transfer(msg.sender, _to, _value); ERC223Transfer(msg.sender, _to, _value, _data); return true; } //function that is called when transaction target is a contract function transferToContract(address _to, uint _value, bytes _data) private returns (bool success) { if (balanceOf(msg.sender) < _value) revert(); balances[msg.sender] = balanceOf(msg.sender).sub(_value); balances[_to] = balanceOf(_to).add(_value); ContractReceiver reciever = ContractReceiver(_to); reciever.tokenFallback(msg.sender, _value, _data); Transfer(msg.sender, _to, _value); ERC223Transfer(msg.sender, _to, _value, _data); return true; } function balanceOf(address _owner) constant returns (uint balance) { return balances[_owner]; } } /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ library SafeMath { /** * @dev Multiplies two numbers, throws on overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; assert(c / a == b); return c; } /** * @dev Integer division of two numbers, truncating the quotient. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend). */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } /** * @dev Adds two numbers, throws on overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } // change contract name to your contract's name // i.e. "contract Bitcoin is ERC223Token" contract YourNewToken is ERC223Token { using SafeMath for uint256; // for example, "Bitcoin" string public name = "SamR Test Token"; // for example, "BTC" string public symbol = "SRT"; // set token's precision // pick any number from 0 to 18 // for example, 4 decimal points means that // smallest token using will be 0.0001 TKN uint public decimals = 8; // total supply of the token // for example, for Bitcoin it would be 21000000 uint public totalSupply = 25000000 * (10**decimals); // Treasure is where ICO funds (ETH/ETC) will be forwarded // replace this address with your wallet address! // it is recommended that you create a paper wallet for this purpose address private treasury = 0x763b7a79c28767af07d94435a501729491109962; // ICO price. You will need to do a little bit of math to figure it out // given 4 decimals, this setting means "1 ETC = 50,000 TKN" uint256 private priceDiv = 5000000; event Purchase(address indexed purchaser, uint256 amount); constructor() public { // This is how many tokens you want to allocate to yourself balances[msg.sender] = 10000000 * (10**decimals); // This is how many tokens you want to allocate for ICO balances[0x0] = 15000000 * (10**decimals); } function () public payable { bytes memory empty; if (msg.value == 0) { revert(); } uint256 purchasedAmount = msg.value.div(priceDiv); if (purchasedAmount == 0) { revert(); } // not enough ETC sent if (purchasedAmount > balances[0x0]) { revert(); } // too much ETC sent treasury.transfer(msg.value); balances[0x0] = balances[0x0].sub(purchasedAmount); balances[msg.sender] = balances[msg.sender].add(purchasedAmount); emit Transfer(0x0, msg.sender, purchasedAmount); emit ERC223Transfer(0x0, msg.sender, purchasedAmount, empty); emit Purchase(msg.sender, purchasedAmount); } }
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