From b40f0cdc803837e6ae45c931388e58fca4d1d3a4 Mon Sep 17 00:00:00 2001 From: p1r0 Date: Tue, 12 Mar 2019 00:13:48 -0600 Subject: [PATCH] deleting old example code --- DCC_ERC20_0.4.18.sol | 237 ------------------------------------------- 1 file changed, 237 deletions(-) delete mode 100644 DCC_ERC20_0.4.18.sol diff --git a/DCC_ERC20_0.4.18.sol b/DCC_ERC20_0.4.18.sol deleted file mode 100644 index 641b437..0000000 --- a/DCC_ERC20_0.4.18.sol +++ /dev/null @@ -1,237 +0,0 @@ -pragma solidity ^0.4.18; - -// ---------------------------------------------------------------------------- -// 'SC1' Decentralized Carbon Credits initial token distribution event -// -// Deployed to : 0xB022F4332cAE44156Cb77Fd4c70e1585C74F0656 -// Symbol : SC1 -// Name : Decentralized Carbon Credits -// Total supply: Gazillion -// Decimals : 18 -// -// Enjoy. -// -// (c) by Moritz Neto & Daniel Bar with BokkyPooBah / Bok Consulting Pty Ltd Au 2017. The MIT Licence. -// ---------------------------------------------------------------------------- - - -// ---------------------------------------------------------------------------- -// Safe maths -// ---------------------------------------------------------------------------- -contract SafeMath { - function safeAdd(uint a, uint b) internal pure returns (uint c) { - c = a + b; - require(c >= a); - } - function safeSub(uint a, uint b) internal pure returns (uint c) { - require(b <= a); - c = a - b; - } - function safeMul(uint a, uint b) internal pure returns (uint c) { - c = a * b; - require(a == 0 || c / a == b); - } - function safeDiv(uint a, uint b) internal pure returns (uint c) { - require(b > 0); - c = a / b; - } -} - - -// ---------------------------------------------------------------------------- -// ERC Token Standard #20 Interface -// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md -// ---------------------------------------------------------------------------- -contract ERC20Interface { - function totalSupply() public constant returns (uint); - function balanceOf(address tokenOwner) public constant returns (uint balance); - function allowance(address tokenOwner, address spender) public constant returns (uint remaining); - function transfer(address to, uint tokens) public returns (bool success); - function approve(address spender, uint tokens) public returns (bool success); - function transferFrom(address from, address to, uint tokens) public returns (bool success); - - event Transfer(address indexed from, address indexed to, uint tokens); - event Approval(address indexed tokenOwner, address indexed spender, uint tokens); -} - - -// ---------------------------------------------------------------------------- -// Contract function to receive approval and execute function in one call -// -// Borrowed from MiniMeToken -// ---------------------------------------------------------------------------- -contract ApproveAndCallFallBack { - function receiveApproval(address from, uint256 tokens, address token, bytes data) public; -} - - -// ---------------------------------------------------------------------------- -// Owned contract -// ---------------------------------------------------------------------------- -contract Owned { - address public owner; - address public newOwner; - - event OwnershipTransferred(address indexed _from, address indexed _to); - - constructor() public { - owner = msg.sender; - } - - modifier onlyOwner { - require(msg.sender == owner); - _; - } - - function transferOwnership(address _newOwner) public onlyOwner { - newOwner = _newOwner; - } - function acceptOwnership() public { - require(msg.sender == newOwner); - emit OwnershipTransferred(owner, newOwner); - owner = newOwner; - newOwner = address(0); - } -} - - -// ---------------------------------------------------------------------------- -// ERC20 Token, with the addition of symbol, name and decimals and assisted -// token transfers -// ---------------------------------------------------------------------------- -contract SC1Token is ERC20Interface, Owned, SafeMath { - string public symbol; - string public name; - uint8 public decimals; - uint public _totalSupply; - uint public startDate; - uint public bonusEnds; - uint public endDate; - - mapping(address => uint) balances; - mapping(address => mapping(address => uint)) allowed; - - - // ------------------------------------------------------------------------ - // Constructor - // ------------------------------------------------------------------------ - constructor () public { - symbol = "SC1"; - name = "Decentralized Carbon Credits"; - decimals = 18; - bonusEnds = now + 1 weeks; - endDate = now + 7 weeks; - - } - - - // ------------------------------------------------------------------------ - // Total supply: Get the total token supply - // ------------------------------------------------------------------------ - - function totalSupply() public constant returns (uint) { - return _totalSupply - balances[address(0)]; - } - - - // ------------------------------------------------------------------------ - // Get the token balance for account `tokenOwner` - // ------------------------------------------------------------------------ - function balanceOf(address tokenOwner) public constant returns (uint balance) { - return balances[tokenOwner]; - } - - - // ------------------------------------------------------------------------ - // Transfer the balance from token owner's account to `to` account - // - Owner's account must have sufficient balance to transfer - // - 0 value transfers are allowed - // ------------------------------------------------------------------------ - function transfer(address to, uint tokens) public returns (bool success) { - balances[msg.sender] = safeSub(balances[msg.sender], tokens); - balances[to] = safeAdd(balances[to], tokens); - emit Transfer(msg.sender, to, tokens); - return true; - } - - - // ------------------------------------------------------------------------ - // Token owner can approve for `spender` to transferFrom(...) `tokens` - // from the token owner's account - // - // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md - // recommends that there are no checks for the approval double-spend attack - // as this should be implemented in user interfaces - // ------------------------------------------------------------------------ - function approve(address spender, uint tokens) public returns (bool success) { - allowed[msg.sender][spender] = tokens; - emit Approval(msg.sender, spender, tokens); - return true; - } - - - // ------------------------------------------------------------------------ - // Transfer `tokens` from the `from` account to the `to` account - // - // The calling account must already have sufficient tokens approve(...)-d - // for spending from the `from` account and - // - From account must have sufficient balance to transfer - // - Spender must have sufficient allowance to transfer - // - 0 value transfers are allowed - // ------------------------------------------------------------------------ - function transferFrom(address from, address to, uint tokens) public returns (bool success) { - balances[from] = safeSub(balances[from], tokens); - allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); - balances[to] = safeAdd(balances[to], tokens); - emit Transfer(from, to, tokens); - return true; - } - - - // ------------------------------------------------------------------------ - // Returns the amount of tokens approved by the owner that can be - // transferred to the spender's account - // ------------------------------------------------------------------------ - function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { - return allowed[tokenOwner][spender]; - } - - - // ------------------------------------------------------------------------ - // Token owner can approve for `spender` to transferFrom(...) `tokens` - // from the token owner's account. The `spender` contract function - // `receiveApproval(...)` is then executed - // ------------------------------------------------------------------------ - function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { - allowed[msg.sender][spender] = tokens; - emit Approval(msg.sender, spender, tokens); - ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); - return true; - } - - // ------------------------------------------------------------------------ - // 1,000 SC1 Tokens per 1 ETH - // ------------------------------------------------------------------------ - function () public payable { - require(now >= startDate && now <= endDate); - uint tokens; - if (now <= bonusEnds) { - tokens = msg.value * 1200; - } else { - tokens = msg.value * 1000; - } - balances[msg.sender] = safeAdd(balances[msg.sender], tokens); - _totalSupply = safeAdd(_totalSupply, tokens); - emit Transfer(address(0), msg.sender, tokens); - owner.transfer(msg.value); - } - - - - // ------------------------------------------------------------------------ - // Owner can transfer out any accidentally sent ERC20 tokens - // ------------------------------------------------------------------------ - function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { - return ERC20Interface(tokenAddress).transfer(owner, tokens); - } -}