pragma solidity ^0.4.24;
// ----------------------------------------------------------------------------
// @Name SafeMath
// @Desc Math operations with safety checks that throw on error
// https://github.com/OpenZeppelin/zeppelin-solidity/blob/master/contracts/math/SafeMath.sol
// ----------------------------------------------------------------------------
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
assert(c / a == b);
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
assert(b <= a);
return a - b;
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
assert(c >= a);
return c;
}
}
// ----------------------------------------------------------------------------
// @title ERC20Basic
// @dev Simpler version of ERC20 interface
// See https://github.com/ethereum/EIPs/issues/179
// ----------------------------------------------------------------------------
contract ERC20Basic {
function totalSupply() public view returns (uint256);
function balanceOf(address who) public view returns (uint256);
function transfer(address to, uint256 value) public returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
}
// ----------------------------------------------------------------------------
// @title ERC20 interface
// @dev See https://github.com/ethereum/EIPs/issues/20
// ----------------------------------------------------------------------------
contract ERC20 is ERC20Basic {
function allowance(address owner, address spender) public view returns (uint256);
function transferFrom(address from, address to, uint256 value) public returns (bool);
function approve(address spender, uint256 value) public returns (bool);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
// ----------------------------------------------------------------------------
// @title Basic token
// @dev Basic version of StandardToken, with no allowances.
// ----------------------------------------------------------------------------
contract BasicToken is ERC20Basic {
using SafeMath for uint256;
mapping(address => uint256) balances;
uint256 totalSupply_;
function totalSupply() public view returns (uint256) {
return totalSupply_;
}
function transfer(address _to, uint256 _value) public returns (bool) {
require(_to != address(0));
require(_value <= balances[msg.sender]);
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
function balanceOf(address _owner) public view returns (uint256) {
return balances[_owner];
}
}
// ----------------------------------------------------------------------------
// @title Ownable
// ----------------------------------------------------------------------------
contract Ownable {
address public owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() public {
owner = msg.sender;
}
modifier onlyOwner() { require(msg.sender == owner); _; }
function transferOwnership(address _newOwner) external onlyOwner {
require(_newOwner != address(0));
emit OwnershipTransferred(owner, _newOwner);
owner = _newOwner;
}
}
// ----------------------------------------------------------------------------
// @title BlackList
// @dev Base contract which allows children to implement an emergency stop mechanism.
// ----------------------------------------------------------------------------
contract BlackList is Ownable {
event Lock(address indexed LockedAddress);
event Unlock(address indexed UnLockedAddress);
mapping( address => bool ) public blackList;
modifier CheckBlackList { require(blackList[msg.sender] != true); _; }
function SetLockAddress(address _lockAddress) external onlyOwner returns (bool) {
require(_lockAddress != address(0));
require(_lockAddress != owner);
require(blackList[_lockAddress] != true);
blackList[_lockAddress] = true;
emit Lock(_lockAddress);
return true;
}
function UnLockAddress(address _unlockAddress) external onlyOwner returns (bool) {
require(blackList[_unlockAddress] != false);
blackList[_unlockAddress] = false;
emit Unlock(_unlockAddress);
return true;
}
}
// ----------------------------------------------------------------------------
// @title Pausable
// @dev Base contract which allows children to implement an emergency stop mechanism.
// ----------------------------------------------------------------------------
contract Pausable is Ownable {
event Pause();
event Unpause();
bool public paused = false;
modifier whenNotPaused() { require(!paused); _; }
modifier whenPaused() { require(paused); _; }
function pause() onlyOwner whenNotPaused public {
paused = true;
emit Pause();
}
function unpause() onlyOwner whenPaused public {
paused = false;
emit Unpause();
}
}
// ----------------------------------------------------------------------------
// @title Standard ERC20 token
// @dev Implementation of the basic standard token.
// https://github.com/ethereum/EIPs/issues/20
// ----------------------------------------------------------------------------
contract StandardToken is ERC20, BasicToken {
mapping (address => mapping (address => uint256)) internal allowed;
function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
require(_to != address(0));
require(_value <= balances[_from]);
require(_value <= allowed[_from][msg.sender]);
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
function approve(address _spender, uint256 _value) public returns (bool) {
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
function allowance(address _owner, address _spender) public view returns (uint256) {
return allowed[_owner][_spender];
}
function increaseApproval(address _spender, uint256 _addedValue) public returns (bool) {
allowed[msg.sender][_spender] = (allowed[msg.sender][_spender].add(_addedValue));
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
function decreaseApproval(address _spender, uint256 _subtractedValue) public returns (bool) {
uint256 oldValue = allowed[msg.sender][_spender];
if (_subtractedValue > oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
}
// ----------------------------------------------------------------------------
// @title MultiTransfer Token
// @dev Only Admin
// ----------------------------------------------------------------------------
contract MultiTransferToken is StandardToken, Ownable {
function MultiTransfer(address[] _to, uint256[] _amount) onlyOwner public returns (bool) {
require(_to.length == _amount.length);
uint256 ui;
uint256 amountSum = 0;
for (ui = 0; ui < _to.length; ui++) {
require(_to[ui] != address(0));
amountSum = amountSum.add(_amount[ui]);
}
require(amountSum <= balances[msg.sender]);
for (ui = 0; ui < _to.length; ui++) {
balances[msg.sender] = balances[msg.sender].sub(_amount[ui]);
balances[_to[ui]] = balances[_to[ui]].add(_amount[ui]);
emit Transfer(msg.sender, _to[ui], _amount[ui]);
}
return true;
}
}
// ----------------------------------------------------------------------------
// @title Burnable Token
// @dev Token that can be irreversibly burned (destroyed).
// ----------------------------------------------------------------------------
contract BurnableToken is StandardToken, Ownable {
event BurnAdminAmount(address indexed burner, uint256 value);
function burnAdminAmount(uint256 _value) onlyOwner public {
require(_value <= balances[msg.sender]);
balances[msg.sender] = balances[msg.sender].sub(_value);
totalSupply_ = totalSupply_.sub(_value);
emit BurnAdminAmount(msg.sender, _value);
emit Transfer(msg.sender, address(0), _value);
}
}
// ----------------------------------------------------------------------------
// @title Mintable token
// @dev Simple ERC20 Token example, with mintable token creation
// Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol
// ----------------------------------------------------------------------------
contract MintableToken is StandardToken, Ownable {
event Mint(address indexed to, uint256 amount);
event MintFinished();
bool public mintingFinished = false;
modifier canMint() { require(!mintingFinished); _; }
function mint(address _to, uint256 _amount) onlyOwner canMint public returns (bool) {
totalSupply_ = totalSupply_.add(_amount);
balances[_to] = balances[_to].add(_amount);
emit Mint(_to, _amount);
emit Transfer(address(0), _to, _amount);
return true;
}
function finishMinting() onlyOwner canMint public returns (bool) {
mintingFinished = true;
emit MintFinished();
return true;
}
}
// ----------------------------------------------------------------------------
// @title Pausable token
// @dev StandardToken modified with pausable transfers.
// ----------------------------------------------------------------------------
contract PausableToken is StandardToken, Pausable, BlackList {
function transfer(address _to, uint256 _value) public whenNotPaused CheckBlackList returns (bool) {
return super.transfer(_to, _value);
}
function transferFrom(address _from, address _to, uint256 _value) public whenNotPaused CheckBlackList returns (bool) {
return super.transferFrom(_from, _to, _value);
}
function approve(address _spender, uint256 _value) public whenNotPaused CheckBlackList returns (bool) {
return super.approve(_spender, _value);
}
function increaseApproval(address _spender, uint _addedValue) public whenNotPaused CheckBlackList returns (bool success) {
return super.increaseApproval(_spender, _addedValue);
}
function decreaseApproval(address _spender, uint _subtractedValue) public whenNotPaused CheckBlackList returns (bool success) {
return super.decreaseApproval(_spender, _subtractedValue);
}
}
// ----------------------------------------------------------------------------
// @Project NEXT REVOLUTION TOKEN (NRT)
// ----------------------------------------------------------------------------
contract NRT is PausableToken, MintableToken, BurnableToken, MultiTransferToken {
string public name = "NEXT REVOLUTION TOKEN";
string public symbol = "NRT";
uint256 public decimals = 18;
}
{
"compilationTarget": {
"NRT.sol": "NRT"
},
"evmVersion": "byzantium",
"libraries": {},
"optimizer": {
"enabled": false,
"runs": 200
},
"remappings": []
}
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