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0x449574c69f3a658794829ed81639a7a9ece041e1-NEOG-NEOG.sol
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pragma solidity ^0.4.9;
library SafeMath {
function mul(uint256 a, uint256 b) internal constant returns(uint256) {
uint256 c = a * b;
assert(a == 0 || c / a == b);
return c;
}
function div(uint256 a, uint256 b) internal constant returns(uint256) {
uint256 c = a / b;
return c;
}
function sub(uint256 a, uint256 b) internal constant returns(uint256) {
assert(b <= a);
return a - b;
}
function add(uint256 a, uint256 b) internal constant returns(uint256) {
uint256 c = a + b;
assert(c >= a);
return c;
}
}
contract NeoGold {
using SafeMath for uint256;
mapping(address => mapping(address => uint256)) allowed;
mapping(address => uint256) balances;
uint256 public totalSupply;
uint256 public decimals;
address public owner;
bytes32 public symbol;
bool public fullSupplyUnlocked;
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed _owner, address indexed spender, uint256 value);
function NeoGold()
{
totalSupply = 100000000;
symbol = 'NEOG';
owner = 0x61DDb6704A84CD906ec8318576465b25aD2100fd;
balances[owner] = 50000000;
decimals = 0;
}
function unlockSupply() returns(bool)
{
require(msg.sender == owner);
require(!fullSupplyUnlocked);
balances[owner] = balances[owner].add(50000000);
fullSupplyUnlocked = true;
return true;
}
function balanceOf(address _owner) constant returns(uint256 balance)
{
return balances[_owner];
}
function allowance(address _owner, address _spender) constant returns(uint256 remaining)
{
return allowed[_owner][_spender];
}
function transfer(address _to, uint256 _value) returns(bool)
{
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
Transfer(msg.sender, _to, _value);
return true;
}
function transferFrom(address _from, address _to, uint256 _value) returns(bool)
{
var _allowance = allowed[_from][msg.sender];
balances[_to] = balances[_to].add(_value);
balances[_from] = balances[_from].sub(_value);
allowed[_from][msg.sender] = _allowance.sub(_value);
Transfer(_from, _to, _value);
return true;
}
function approve(address _spender, uint256 _value) returns(bool)
{
require((_value == 0) || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
function()
{
revert();
}
}