pragma solidity ^0.4.18;
// Latino Token - Latinos Unidos Impulsando la CriptoEconomía - latinotoken.com
/**
* @title ERC20Basic interface
* @dev Basic version of ERC20 interface
*/
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);
}
/**
* @title ERC20 interface
* @dev Standard version of ERC20 interface
*/
contract ERC20 is ERC20Basic {
function allowance(address owner, address spender) constant returns (uint256);
function transferFrom(address from, address to, uint256 value) returns (bool);
function approve(address spender, uint256 value) returns (bool);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
/**
* @title SafeMath
* @dev Math operations with safety checks that throw on error
*/
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) {
// 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;
}
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;
}
function mod(uint256 a, uint256 b) internal constant returns (uint256) {
// assert(b > 0); // Solidity automatically throws when dividing by 0
uint256 c = a % b;
//uint256 z = a / b;
assert(a == (a / b) * b + c); // There is no case in which this doesn't hold
return c;
}
}
/**
* @title Ownable
* @dev The modified Ownable contract has two owner addresses to provide authorization control
* functions.
*/
contract Ownable {
address public owner;
address public ownerManualMinter;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev The Ownable constructor sets the original `owner` of the contract to the sender
* account.
*/
function Ownable() {
/**
* ownerManualMinter contains the eth address of the party allowed to manually mint outside the crowdsale contract
* this is setup at construction time
*/
ownerManualMinter = 0x163dE8a97f6B338bb498145536d1178e1A42AF85 ; // To be changed right after contract is deployed
owner = msg.sender;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(msg.sender == owner || msg.sender == ownerManualMinter);
_;
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* This shall be invoked with the ICO crowd sale smart contract address once it´s ready
* @param newOwner The address to transfer ownership to.
*/
function transferOwnership(address newOwner) onlyOwner public {
require(newOwner != address(0));
OwnershipTransferred(owner, newOwner);
owner = newOwner;
}
/**
* @dev After the manual minting process ends, this shall be invoked passing the ICO crowd sale contract address so that
* nobody else will be ever able to mint more tokens
* @param newOwner The address to transfer ownership to.
*/
function transferOwnershipManualMinter(address newOwner) onlyOwner public {
require(newOwner != address(0));
OwnershipTransferred(owner, newOwner);
ownerManualMinter = newOwner;
}
}
contract Restrictable is Ownable {
address public restrictedAddress;
event RestrictedAddressChanged(address indexed restrictedAddress);
function Restrictable() {
restrictedAddress = address(0);
}
//that function could be called only ONCE!!! After that nothing could be reverted!!!
function setRestrictedAddress(address _restrictedAddress) onlyOwner public {
restrictedAddress = _restrictedAddress;
RestrictedAddressChanged(_restrictedAddress);
transferOwnership(_restrictedAddress);
}
modifier notRestricted(address tryTo) {
if(tryTo == restrictedAddress) {
revert();
}
_;
}
}
/**
* @title ERC20Basic Token
* @dev Implementation of the basic token.
*/
contract BasicToken is ERC20Basic, Restrictable {
using SafeMath for uint256;
mapping(address => uint256) balances;
uint256 public constant icoEndDatetime = 1530421200 ;
/**
* @dev transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) notRestricted(_to) public returns (bool) {
require(_to != address(0));
// We won´t allow to transfer tokens until the ICO finishes
require(now > icoEndDatetime );
require(_value <= balances[msg.sender]);
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public constant returns (uint256 balance) {
return balances[_owner];
}
}
/**
* @title Standard ERC20 Token
* @dev Implementation of the standard token.
* @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/
contract StandardToken is ERC20, BasicToken {
mapping (address => mapping (address => uint256)) internal allowed;
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amout of tokens to be transfered
*/
function transferFrom(address _from, address _to, uint256 _value) notRestricted(_to) public returns (bool) {
require(_to != address(0));
// We won´t allow to transfer tokens until the ICO finishes
require(now > icoEndDatetime) ;
require(_value <= balances[_from]);
require(_value <= allowed[_from][msg.sender]);
// Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
// require (_value <= _allowance);
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
Transfer(_from, _to, _value);
return true;
}
function approve(address _spender, uint256 _value) public returns (bool) {
// To change the approve amount you first have to reduce the addresses`
// allowance to zero by calling `approve(_spender, 0)` if it is not
// already 0 to mitigate the race condition described here:
// https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifing the amount of tokens still available for the spender.
*/
function allowance(address _owner, address _spender) public constant returns (uint256 remaining) {
return allowed[_owner][_spender];
}
/**
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
*/
function increaseApproval (address _spender, uint _addedValue) public returns (bool success) {
allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
function decreaseApproval (address _spender, uint _subtractedValue) public returns (bool success) {
uint oldValue = allowed[msg.sender][_spender];
if (_subtractedValue > oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
}
/**
* @title Mintable token
* @dev ERC20 Token, with mintable token creation
* Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol
*/
contract MintableToken is StandardToken {
uint32 public constant decimals = 4;
uint256 public constant MAX_SUPPLY = 700000000 * (10 ** uint256(decimals)); // 700MM tokens hard cap
event Mint(address indexed to, uint256 amount);
/**
* @dev Function to mint tokens
* @param _to The address that will recieve the minted tokens.
* @param _amount The amount of tokens to mint.
* @return A boolean that indicates if the operation was successful.
*/
function mint(address _to, uint256 _amount) onlyOwner public returns (bool) {
uint256 newTotalSupply = totalSupply.add(_amount);
require(newTotalSupply <= MAX_SUPPLY); // never ever allows to create more than the hard cap limit
totalSupply = totalSupply.add(_amount);
balances[_to] = balances[_to].add(_amount);
Mint(_to, _amount);
Transfer(0x0, _to, _amount);
return true;
}
}
contract LATINOToken is MintableToken
{
string public constant name = "Latino Token";
string public constant symbol = "LATINO";
function LATINOToken() { totalSupply = 0 ; } // initializes to 0 the total token supply
}
{
"compilationTarget": {
"LATINOToken.sol": "LATINOToken"
},
"libraries": {},
"optimizer": {
"enabled": false,
"runs": 0
},
"remappings": []
}
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