Created
March 26, 2017 01:31
-
-
Save willwarren89/e662c1b26ecf9c2927a2a289d9d26ce1 to your computer and use it in GitHub Desktop.
ERC20 token with metadata and initial stakeholder allocations.
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 ^0.4.10; | |
contract Token { | |
/// @return total amount of tokens | |
function totalSupply() constant returns (uint256 supply) {} | |
/// @param _owner The address from which the balance will be retrieved | |
/// @return The balance | |
function balanceOf(address _owner) constant returns (uint256 balance) {} | |
/// @notice send `_value` token to `_to` from `msg.sender` | |
/// @param _to The address of the recipient | |
/// @param _value The amount of token to be transferred | |
/// @return Whether the transfer was successful or not | |
function transfer(address _to, uint256 _value) returns (bool success) {} | |
/// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from` | |
/// @param _from The address of the sender | |
/// @param _to The address of the recipient | |
/// @param _value The amount of token to be transferred | |
/// @return Whether the transfer was successful or not | |
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {} | |
/// @notice `msg.sender` approves `_addr` to spend `_value` tokens | |
/// @param _spender The address of the account able to transfer the tokens | |
/// @param _value The amount of wei to be approved for transfer | |
/// @return Whether the approval was successful or not | |
function approve(address _spender, uint256 _value) returns (bool success) {} | |
/// @param _owner The address of the account owning tokens | |
/// @param _spender The address of the account able to transfer the tokens | |
/// @return Amount of remaining tokens allowed to spent | |
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {} | |
event Transfer(address indexed _from, address indexed _to, uint256 _value); | |
event Approval(address indexed _owner, address indexed _spender, uint256 _value); | |
uint public decimals; | |
string public name; | |
} | |
contract StandardToken is Token { | |
function transfer(address _to, uint256 _value) returns (bool success) { | |
//Default assumes totalSupply can't be over max (2^256 - 1). | |
//If your token leaves out totalSupply and can issue more tokens as time goes on, you need to check if it doesn't wrap. | |
//Replace the if with this one instead. | |
if (balances[msg.sender] >= _value && balances[_to] + _value > balances[_to]) { | |
//if (balances[msg.sender] >= _value && _value > 0) { | |
balances[msg.sender] -= _value; | |
balances[_to] += _value; | |
Transfer(msg.sender, _to, _value); | |
return true; | |
} else { return false; } | |
} | |
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) { | |
//same as above. Replace this line with the following if you want to protect against wrapping uints. | |
if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && balances[_to] + _value > balances[_to]) { | |
//if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && _value > 0) { | |
balances[_to] += _value; | |
balances[_from] -= _value; | |
allowed[_from][msg.sender] -= _value; | |
Transfer(_from, _to, _value); | |
return true; | |
} else { return false; } | |
} | |
function balanceOf(address _owner) constant returns (uint256 balance) { | |
return balances[_owner]; | |
} | |
function approve(address _spender, uint256 _value) returns (bool success) { | |
allowed[msg.sender][_spender] = _value; | |
Approval(msg.sender, _spender, _value); | |
return true; | |
} | |
function allowance(address _owner, address _spender) constant returns (uint256 remaining) { | |
return allowed[_owner][_spender]; | |
} | |
mapping(address => uint256) balances; | |
mapping (address => mapping (address => uint256)) allowed; | |
uint256 public totalSupply; | |
} | |
contract MyERC20 is StandardToken { | |
// metadata | |
string public constant name = "MyERC20Token"; | |
string public constant symbol = "ERC"; | |
uint public constant decimals = 18; | |
// stakeholder addresses | |
address public constant FOUNDATION = 0x642dab093d6e7518dfdcb450e23108038cf667c6; | |
address public constant FOUNDER_1 = 0xb1f49e6c1d2306862253ef516a07aedded28ae15; | |
address public constant FOUNDER_2 = 0xb1fdea258e9d67fc121821b38ffc32a70c873964; | |
address public constant INVESTOR_1 = 0xe15268cd67501f4766a9fc20e121d1f82aa397c3; | |
address public constant INVESTOR_2 = 0x175037c16c0e433f86590d99afb33e5e3560d263; | |
// stakeholder allocations as a percentage of total supply | |
uint public totalSupply = 10e6 * 10 ** decimals; | |
uint public constant FOUNDATION_ALLOCATION = 20; | |
uint public constant FOUNDER_1_ALLOCATION = 5; | |
uint public constant FOUNDER_2_ALLOCATION = 5; | |
uint public constant INVESTOR_1_ALLOCATION = 3; | |
uint public constant INVESTOR_2_ALLOCATION = 2; | |
// constructor | |
function MyERC20() { | |
balances[FOUNDATION] = FOUNDATION_ALLOCATION * totalSupply / 100; | |
balances[FOUNDER_1] = FOUNDER_1_ALLOCATION * totalSupply / 100; | |
balances[FOUNDER_2] = FOUNDER_2_ALLOCATION * totalSupply / 100; | |
balances[INVESTOR_1] = INVESTOR_1_ALLOCATION * totalSupply / 100; | |
balances[INVESTOR_2] = INVESTOR_2_ALLOCATION * totalSupply / 100; | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment