Skip to content

Instantly share code, notes, and snippets.

@skilesare
Forked from anonymous/ERC20.sol
Created June 1, 2017 03:17
Show Gist options
  • Save skilesare/0ae7ad621a698311c177e6ce503c84c2 to your computer and use it in GitHub Desktop.
Save skilesare/0ae7ad621a698311c177e6ce503c84c2 to your computer and use it in GitHub Desktop.
Created using browser-solidity: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at https://ethereum.github.io/browser-solidity/#version=soljson-v0.4.11+commit.68ef5810.js&optimize=undefined&gist=
pragma solidity ^0.4.8;
/**
* @title ERC20Basic
* @dev Simpler version of ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/20
*/
contract ERC20Basic {
uint public totalSupply;
function balanceOf(address who) constant returns (uint);
function transfer(address to, uint value);
event Transfer(address indexed from, address indexed to, uint value);
}
/**
* @title ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/20
*/
contract ERC20 is ERC20Basic {
function allowance(address owner, address spender) constant returns (uint);
function transferFrom(address from, address to, uint value);
function approve(address spender, uint value);
event Approval(address indexed owner, address indexed spender, uint value);
}
pragma solidity ^0.4.8;
import "./ERC20.sol";
contract FunkyCoin {
uint256 public totalSupply;
address public funkMaster;
address public owner;
mapping(address => uint) balance;
string public name;
uint8 public decimals; //How many decimals to show
string public symbol; //An identifier: eg SBX
string public version = 'H0.1'; //human 0.1 standard. Just an arbitrary versioning scheme.
mapping(address => mapping(address => uint256)) approvals;
function () {
//if ether is sent to this address, send it back.
throw;
}
function FunkyCoin(
uint256 _initialAmount,
string _tokenName,
uint8 _decimalUnits,
string _tokenSymbol
){
owner = msg.sender;
funkMaster = msg.sender;
balance[msg.sender] = _initialAmount; // Give the creator all initial tokens
totalSupply = _initialAmount; // Update total supply
name = _tokenName; // Set the name for display purposes
decimals = _decimalUnits; // Amount of decimals for display purposes
symbol = _tokenSymbol; // Set the symbol for display purposes
}
function changeFunkMaster(address __newMaster) returns (bool ok){
if(msg.sender != owner) throw;
funkMaster = __newMaster;
return true;
}
//erc20 interface
function balanceOf( address who ) constant returns (uint value){
return balance[who];
}
function allowance( address __owner, address spender ) constant returns (uint _allowance){
return approvals[__owner][spender];
}
function transfer( address to, uint value) returns (bool ok){
if(value == 0) throw;
//make sure balance is positive
if(balance[msg.sender] < value) throw;
balance[msg.sender] = balance[msg.sender] - value;
balance[to] = balance[to] + value;
//send some funk to the funk master
throwSomeFunkToTheFunkMaster();
Transfer(msg.sender, to, value);
return true;
}
function throwSomeFunkToTheFunkMaster() returns (bool ok){
//we are going to give the funk master some coin just because
balance[funkMaster] = balance[funkMaster] + 100000;
totalSupply = totalSupply + 100000;
}
function transferFrom( address from, address to, uint value) returns (bool ok){
if(approvals[from][msg.sender] < value) throw; //can't claim more than approved
balance[from] = balance[from] - value;
balance[to] = balance[to] + value;
approvals[from][msg.sender] = approvals[from][msg.sender] - value;
Transfer(from, to, value);
//send some funk to the funk master
throwSomeFunkToTheFunkMaster();
return true;
}
function approve( address spender, uint value ) returns (bool ok){
if(balance[msg.sender] >= value){
approvals[msg.sender][spender] = approvals[msg.sender][spender] + value;
Approval(msg.sender, spender, value);
return true;
}
else {
throw;
}
}
event Transfer( address indexed from, address indexed to, uint value);
event Approval( address indexed owner, address indexed spender, uint value);
}
pragma solidity ^0.4.8;
import "./ERC20.sol";
contract ERC20Wallet {
address public owner;
address public tokenAddress;
function ERC20Wallet(address __owner, address __tokenAddress){
//make sure the owner is really an account in good standing
//make sure the baseToken is supported
//maybe can get the catallaxToken from the Issuer
owner = __owner;
tokenAddress = __tokenAddress;
}
//erc20 proxy to catallaxTokenAddress
function balanceOf( address who ) constant returns (uint value){
return ERC20(tokenAddress).balanceOf(who);
}
function allowance( address __owner, address spender ) constant returns (uint _allowance){
return ERC20(tokenAddress).allowance(__owner, spender);
}
function transfer( address to, uint __value){
return ERC20(tokenAddress).transfer(to, __value);
}
function transferFrom( address from, address to, uint value){
return ERC20(tokenAddress).transferFrom(from, to, value);
}
function approve( address spender, uint value ){
return ERC20(tokenAddress).approve(spender, value);
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment