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Contract Source Code:
File 1 of 1 : ROPEcontract
pragma solidity >=0.4.22 <0.6.0; contract ROPEcontract { string public constant name = "$ROPE"; string public constant symbol = "$ROPE"; uint8 public constant decimals = 18; event Approval(address indexed tokenOwner, address indexed spender, uint tokens); event Transfer(address indexed from, address indexed to, uint tokens); mapping(address => uint256) balances; mapping(address => mapping (address => uint256)) allowed; uint256 totalSupply_; using SafeMath for uint256; constructor(uint256 total) public { totalSupply_ = total; balances[msg.sender] = totalSupply_; } function totalSupply() public view returns (uint256) { return totalSupply_; } function balanceOf(address tokenOwner) public view returns (uint) { return balances[tokenOwner]; } function transfer(address receiver, uint numTokens) public returns (bool) { require(numTokens <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(numTokens); balances[receiver] = balances[receiver].add(numTokens); emit Transfer(msg.sender, receiver, numTokens); return true; } function approve(address delegate, uint numTokens) public returns (bool) { allowed[msg.sender][delegate] = numTokens; emit Approval(msg.sender, delegate, numTokens); return true; } function allowance(address owner, address delegate) public view returns (uint) { return allowed[owner][delegate]; } function transferFrom(address owner, address buyer, uint numTokens) public returns (bool) { require(numTokens <= balances[owner]); require(numTokens <= allowed[owner][msg.sender]); balances[owner] = balances[owner].sub(numTokens); allowed[owner][msg.sender] = allowed[owner][msg.sender].sub(numTokens); balances[buyer] = balances[buyer].add(numTokens); emit Transfer(owner, buyer, numTokens); return true; } } library SafeMath { 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; } }
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