Contract Source Code:
File 1 of 1 : Token
/*! ucap.token.sol | (c) 2018 Develop by BelovITLab LLC, author @stupidlovejoy | License: MIT */
pragma solidity 0.4.25;
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns(uint256) {
if(a == 0) return 0;
uint256 c = a * b;
require(c / a == b);
return c;
}
function div(uint256 a, uint256 b) internal pure returns(uint256) {
require(b > 0);
uint256 c = a / b;
return c;
}
function sub(uint256 a, uint256 b) internal pure returns(uint256) {
require(b <= a);
uint256 c = a - b;
return c;
}
function add(uint256 a, uint256 b) internal pure returns(uint256) {
uint256 c = a + b;
require(c >= a);
return c;
}
function mod(uint256 a, uint256 b) internal pure returns(uint256) {
require(b != 0);
return a % b;
}
}
contract Ownable {
address public owner;
address public new_owner;
event OwnershipTransfer(address indexed previousOwner, address indexed newOwner);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
modifier onlyOwner() { require(msg.sender == owner); _; }
constructor() public {
owner = msg.sender;
}
function _transferOwnership(address _to) internal {
require(_to != address(0));
new_owner = _to;
emit OwnershipTransfer(owner, _to);
}
function acceptOwnership() public {
require(new_owner != address(0) && msg.sender == new_owner);
emit OwnershipTransferred(owner, new_owner);
owner = new_owner;
new_owner = address(0);
}
function transferOwnership(address _to) public onlyOwner {
_transferOwnership(_to);
}
}
contract ERC20 {
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
function totalSupply() public view returns(uint256);
function balanceOf(address who) public view returns(uint256);
function transfer(address to, uint256 value) public returns(bool);
function transferFrom(address from, address to, uint256 value) public returns(bool);
function allowance(address owner, address spender) public view returns(uint256);
function approve(address spender, uint256 value) public returns(bool);
}
contract StandardToken is ERC20 {
using SafeMath for uint256;
uint256 internal totalSupply_;
string public name;
string public symbol;
uint8 public decimals;
mapping(address => uint256) public balances;
mapping(address => mapping(address => uint256)) internal allowed;
constructor(string _name, string _symbol, uint8 _decimals) public {
name = _name;
symbol = _symbol;
decimals = _decimals;
}
function totalSupply() public view returns(uint256) {
return totalSupply_;
}
function balanceOf(address _owner) public view returns(uint256) {
return balances[_owner];
}
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 multiTransfer(address[] _to, uint256[] _value) public returns(bool) {
require(_to.length == _value.length);
for(uint i = 0; i < _to.length; i++) {
transfer(_to[i], _value[i]);
}
return true;
}
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 allowance(address _owner, address _spender) public view returns(uint256) {
return allowed[_owner][_spender];
}
function approve(address _spender, uint256 _value) public returns(bool) {
require(_spender != address(0));
require((_value == 0) || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
function increaseApproval(address _spender, uint _addedValue) public returns(bool) {
require(_spender != address(0));
require(_addedValue > 0);
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, uint _subtractedValue) public returns(bool) {
require(_spender != address(0));
require(_subtractedValue > 0);
uint 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;
}
}
contract MintableToken is StandardToken, Ownable {
bool public mintingFinished = false;
event Mint(address indexed to, uint256 amount);
event MintFinished();
modifier canMint() { require(!mintingFinished); _; }
modifier hasMintPermission() { require(msg.sender == owner); _; }
function mint(address _to, uint256 _amount) hasMintPermission 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;
}
}
contract CappedToken is MintableToken {
uint256 public cap;
constructor(uint256 _cap) public {
require(_cap > 0);
cap = _cap;
}
function mint(address _to, uint256 _amount) public returns(bool) {
require(totalSupply_.add(_amount) <= cap);
return super.mint(_to, _amount);
}
}
contract BurnableToken is StandardToken {
event Burn(address indexed burner, uint256 value);
function _burn(address _who, uint256 _value) internal {
require(_value <= balances[_who]);
balances[_who] = balances[_who].sub(_value);
totalSupply_ = totalSupply_.sub(_value);
emit Burn(_who, _value);
emit Transfer(_who, address(0), _value);
}
function burn(uint256 _value) public {
_burn(msg.sender, _value);
}
function burnFrom(address _from, uint256 _value) public {
require(_value <= allowed[_from][msg.sender]);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
_burn(_from, _value);
}
}
contract Withdrawable is Ownable {
event WithdrawEther(address indexed to, uint value);
function withdrawEther(address _to, uint _value) onlyOwner public {
require(_to != address(0));
require(address(this).balance >= _value);
_to.transfer(_value);
emit WithdrawEther(_to, _value);
}
function withdrawTokensTransfer(ERC20 _token, address _to, uint256 _value) onlyOwner public {
require(_token.transfer(_to, _value));
}
function withdrawTokensTransferFrom(ERC20 _token, address _from, address _to, uint256 _value) onlyOwner public {
require(_token.transferFrom(_from, _to, _value));
}
function withdrawTokensApprove(ERC20 _token, address _spender, uint256 _value) onlyOwner public {
require(_token.approve(_spender, _value));
}
}
contract Token is StandardToken, CappedToken, BurnableToken, Withdrawable {
constructor() CappedToken(100000000 * 1e18) StandardToken("UniCap.finance", "UCAP", 18) public {
mint(0x316eB64cc65C36b7266A5e76DD7ABF257a7FA119, 1e26);
}
}