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@kingassune
Created February 12, 2018 22:14
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pragma solidity ^0.4.6;
// Written By Dontrail Cotlage
//
contract SafeMath{
function safeMul(uint a, uint b) internal returns (uint) {
uint c = a * b;
assert(a == 0 || c / a == b);
return c;
}
function safeDiv(uint a, uint b) internal returns (uint) {
assert(b > 0);
uint c = a / b;
assert(a == b * c + a % b);
return c;
}
function safeSub(uint a, uint b) internal returns (uint) {
assert(b <= a);
return a - b;
}
function safeAdd(uint a, uint b) internal returns (uint) {
uint c = a + b;
assert(c >= a);
return c;
}
function assert(bool assertion) internal {
if (!assertion) {
throw;
}
}
}
contract ERC20Basic {
//uint256 public totalSupply;
function balanceOf(address who) constant returns (uint256);
function transfer(address to, uint256 value) returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
}
contract ERC20 is ERC20Basic {
function totalSupply() constant returns (uint256 totalSupply) {}
function balanceOf(address _owner) constant returns (uint256 balance) {}
function transfer(address _recipient, uint256 _value) returns (bool success) {}
function transferFrom(address _from, address _recipient, uint256 _value) returns (bool success) {}
function approve(address _spender, uint256 _value) returns (bool success) {}
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {}
event Transfer(address indexed _from, address indexed _recipient, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}
contract EtherHoustonICO is ERC20, SafeMath{
mapping(address => uint256) balances;
uint256 public totalSupply;
function balanceOf(address _owner) constant returns (uint256 balance) {
return balances[_owner];
}
function transfer(address _to, uint256 _value) returns (bool success){
balances[msg.sender] = safeSub(balances[msg.sender], _value);
balances[_to] = safeAdd(balances[_to], _value);
Transfer(msg.sender, _to, _value);
return true;
}
mapping (address => mapping (address => uint256)) allowed;
function transferFrom(address _from, address _to, uint256 _value) returns (bool success){
var _allowance = allowed[_from][msg.sender];
balances[_to] = safeAdd(balances[_to], _value);
balances[_from] = safeSub(balances[_from], _value);
allowed[_from][msg.sender] = safeSub(_allowance, _value);
Transfer(_from, _to, _value);
return true;
}
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];
}
uint256 public endTime;
modifier during_offering_time(){
if (now >= endTime){
throw;
}else{
_;
}
}
function () payable during_offering_time {
createTokens(msg.sender);
}
function createTokens(address recipient) payable {
if (msg.value == 0) {
throw;
}
uint tokens = safeDiv(safeMul(msg.value, price), 1 ether);
totalSupply = safeAdd(totalSupply, tokens);
balances[recipient] = safeAdd(balances[recipient], tokens);
if (!owner.send(msg.value)) {
throw;
}
}
string public name = "EtherHouston";
string public symbol = "HOU";
uint public decimals = 2;
uint256 public INITIAL_SUPPLY = 5000000;
uint256 public price;
address public owner;
function EtherHoustonICO() {
totalSupply = INITIAL_SUPPLY;
balances[msg.sender] = INITIAL_SUPPLY; // Give all of the initial tokens to the contract deployer.
endTime = now + 1 weeks;
owner = msg.sender;
price = 50000;
}
}
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