Yarr Token

Too many vulnerabilities (Unchecked transfer, Reentrancy vulnerability, etc.). High risk of a scam. DYOR & manual audit are advised.

YarrToken.addLiquidity(uint256,uint256) (#2139-2150) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#2142-2149)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in YarrToken._transfer(address,address,uint256) (#2025-2074):
External calls:
- swapAndLiquify(contractTokenBalance) (#2046)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#2142-2149)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,_to,block.timestamp) (#2129-2135)
- (success) = address(dividendTracker).call{value: dividends}() (#2107)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#2046)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#2142-2149)
- marketingWallet.transfer(marketingAmount) (#2101)
- developerWallet.transfer(developerAmount) (#2104)
- (success) = address(dividendTracker).call{value: dividends}() (#2107)
State variables written after the call(s):
- super._transfer(from,address(this),fees) (#2061)
- _balances[sender] = senderBalance - amount (#1015)
- _balances[recipient] += amount (#1017)
- super._transfer(from,to,amount) (#2064)
- _balances[sender] = senderBalance - amount (#1015)
- _balances[recipient] += amount (#1017)
Reentrancy in DividendPayingToken._withdrawDividendOfUser(address) (#1404-1419):
External calls:
- (success) = user.call{gas: 3000,value: _withdrawableDividend}() (#1409)
State variables written after the call(s):
- withdrawnDividends[user] = withdrawnDividends[user].sub(_withdrawableDividend) (#1412)
Apply the check-effects-interactions pattern.

Additional information: link

YarrToken._totalSupply (#1766) shadows:
- ERC20._totalSupply (#821)
Remove the state variable shadowing.

Additional information: link

SafeToken.withdraw(address,uint256) (#1719-1722) ignores return value by IERC20(_token).transfer(safeManager,_amount) (#1721)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

Additional information: link

Combination 1: Reentrancy vulnerabilities + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.

Combination 2: Unchecked transfer + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.

Combination 3: Reentrancy vulnerabilities + Unchecked transfer vulnerability. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.

Unable to verify that contract auditor is trusted: Certik, Quantstamp, Hacken, Solidity, Paladinsec, Openzeppelin, Verichains

Contract ownership is not renounced (belongs to a wallet)

Low level call in DividendPayingToken._withdrawDividendOfUser(address) (#1404-1419):
- (success) = user.call{gas: 3000,value: _withdrawableDividend}() (#1409)
Low level call in YarrToken.swapAndLiquify(uint256) (#2076-2114):
- (success) = address(dividendTracker).call{value: dividends}() (#2107)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Function IUniswapV2Router01.WETH() (#6) is not in mixedCase
Parameter DividendPayingToken.dividendOf(address)._owner (#1425) is not in mixedCase
Parameter DividendPayingToken.withdrawableDividendOf(address)._owner (#1432) is not in mixedCase
Parameter DividendPayingToken.withdrawnDividendOf(address)._owner (#1439) is not in mixedCase
Parameter DividendPayingToken.accumulativeDividendOf(address)._owner (#1449) is not in mixedCase
Constant DividendPayingToken.magnitude (#1341) is not in UPPER_CASE_WITH_UNDERSCORES
Parameter YarrTokenDividendTracker.getAccount(address)._account (#1561) is not in mixedCase
Parameter SafeToken.setSafeManager(address)._safeManager (#1715) is not in mixedCase
Parameter SafeToken.withdraw(address,uint256)._token (#1719) is not in mixedCase
Parameter SafeToken.withdraw(address,uint256)._amount (#1719) is not in mixedCase
Parameter SafeToken.withdrawBNB(uint256)._amount (#1724) is not in mixedCase
Parameter LockToken.includeToWhiteList(address[])._users (#1747) is not in mixedCase
Parameter YarrToken.setExtraFeeOnSell(uint256)._extraFeeOnSell (#1825) is not in mixedCase
Parameter YarrToken.setAllFeesPercentages(uint256,uint256,uint256,uint256)._bnbRewardFee (#1831) is not in mixedCase
Parameter YarrToken.setAllFeesPercentages(uint256,uint256,uint256,uint256)._liquidityFee (#1831) is not in mixedCase
Parameter YarrToken.setAllFeesPercentages(uint256,uint256,uint256,uint256)._marketingFee (#1831) is not in mixedCase
Parameter YarrToken.setAllFeesPercentages(uint256,uint256,uint256,uint256)._developerFee (#1831) is not in mixedCase
Parameter YarrToken.setExcludeFromMaxTx(address,bool)._address (#1906) is not in mixedCase
Parameter YarrToken.setExcludeFromAll(address)._address (#1910) is not in mixedCase
Parameter YarrToken.setSwapAndLiquifyEnabled(bool)._enabled (#2020) is not in mixedCase
Parameter YarrToken.swapTokensForBnb(uint256,address)._to (#2116) is not in mixedCase
Parameter YarrToken.setSwapTokensAtAmount(uint256)._amount (#2152) is not in mixedCase
Parameter YarrToken.setExcludedFromWhale(address,bool)._enabled (#2186) is not in mixedCase
Variable YarrToken._totalSupply (#1766) is not in mixedCase
Variable YarrToken.BNBRewardsFee (#1770) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable 'YarrToken._transfer(address,address,uint256).lastProcessedIndex (#2069)' in YarrToken._transfer(address,address,uint256) (#2025-2074) potentially used before declaration: ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (#2070)
Variable 'YarrToken._transfer(address,address,uint256).claims (#2069)' in YarrToken._transfer(address,address,uint256) (#2025-2074) potentially used before declaration: ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (#2070)
Variable 'YarrToken._transfer(address,address,uint256).iterations (#2069)' in YarrToken._transfer(address,address,uint256) (#2025-2074) potentially used before declaration: ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (#2070)
Move all variable declarations prior to any usage of the variable, and ensure that reaching a variable declaration does not depend on some conditional if it is used unconditionally.

Additional information: link

Reentrancy in YarrToken.constructor() (#1844-1890):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1860-1861)
State variables written after the call(s):
- uniswapV2Pair = _uniswapV2Pair (#1863)
- uniswapV2Router = _uniswapV2Router (#1862)
Reentrancy in YarrToken.constructor() (#1844-1890):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1860-1861)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (#1864)
- dividendTracker.excludeFromDividends(pair) (#1932)
- dividendTracker.excludeFromDividends(address(dividendTracker)) (#1867)
- dividendTracker.excludeFromDividends(address(this)) (#1868)
- dividendTracker.excludeFromDividends(owner()) (#1869)
- dividendTracker.excludeFromDividends(address(_uniswapV2Router)) (#1870)
- dividendTracker.excludeFromDividends(0x000000000000000000000000000000000000dEaD) (#1871)
State variables written after the call(s):
- _mint(owner(),_totalSupply) (#1889)
- _balances[account] += amount (#1039)
- excludeFromFees(owner(),true) (#1874)
- _isExcludedFromFees[account] = excluded (#1902)
- excludeFromFees(marketingWallet,true) (#1875)
- _isExcludedFromFees[account] = excluded (#1902)
- excludeFromFees(developerWallet,true) (#1876)
- _isExcludedFromFees[account] = excluded (#1902)
- excludeFromFees(address(this),true) (#1877)
- _isExcludedFromFees[account] = excluded (#1902)
- _isExcludedFromMaxTx[owner()] = true (#1880)
- _isExcludedFromMaxTx[address(this)] = true (#1881)
- _isExcludedFromMaxTx[marketingWallet] = true (#1882)
- excludeWalletsFromWhales() (#1884)
- _isExcludedFromWhale[owner()] = true (#2165)
- _isExcludedFromWhale[address(this)] = true (#2166)
- _isExcludedFromWhale[address(0)] = true (#2167)
- _isExcludedFromWhale[uniswapV2Pair] = true (#2168)
- _mint(owner(),_totalSupply) (#1889)
- _totalSupply += amount (#1038)
Reentrancy in YarrTokenDividendTracker.processAccount(address,bool) (#1695-1705):
External calls:
- amount = _withdrawDividendOfUser(account) (#1696)
- (success) = user.call{gas: 3000,value: _withdrawableDividend}() (#1409)
State variables written after the call(s):
- lastClaimTimes[account] = block.timestamp (#1699)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in YarrToken._setAutomatedMarketMakerPair(address,bool) (#1928-1935):
External calls:
- dividendTracker.excludeFromDividends(pair) (#1932)
Event emitted after the call(s):
- SetAutomatedMarketMakerPair(pair,value) (#1934)
Reentrancy in YarrToken._transfer(address,address,uint256) (#2025-2074):
External calls:
- swapAndLiquify(contractTokenBalance) (#2046)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#2142-2149)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,_to,block.timestamp) (#2129-2135)
- (success) = address(dividendTracker).call{value: dividends}() (#2107)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#2046)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#2142-2149)
- marketingWallet.transfer(marketingAmount) (#2101)
- developerWallet.transfer(developerAmount) (#2104)
- (success) = address(dividendTracker).call{value: dividends}() (#2107)
Event emitted after the call(s):
- Transfer(sender,recipient,amount) (#1019)
- super._transfer(from,address(this),fees) (#2061)
- Transfer(sender,recipient,amount) (#1019)
- super._transfer(from,to,amount) (#2064)
Reentrancy in YarrToken._transfer(address,address,uint256) (#2025-2074):
External calls:
- swapAndLiquify(contractTokenBalance) (#2046)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#2142-2149)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,_to,block.timestamp) (#2129-2135)
- (success) = address(dividendTracker).call{value: dividends}() (#2107)
- dividendTracker.setBalance(address(from),balanceOf(from)) (#2065)
- dividendTracker.setBalance(address(to),balanceOf(to)) (#2066)
- dividendTracker.process(gas) (#2069-2072)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#2046)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#2142-2149)
- marketingWallet.transfer(marketingAmount) (#2101)
- developerWallet.transfer(developerAmount) (#2104)
- (success) = address(dividendTracker).call{value: dividends}() (#2107)
Event emitted after the call(s):
- ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (#2070)
Reentrancy in YarrToken.constructor() (#1844-1890):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1860-1861)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (#1864)
- dividendTracker.excludeFromDividends(pair) (#1932)
Event emitted after the call(s):
- SetAutomatedMarketMakerPair(pair,value) (#1934)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (#1864)
Reentrancy in YarrToken.constructor() (#1844-1890):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1860-1861)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (#1864)
- dividendTracker.excludeFromDividends(pair) (#1932)
- dividendTracker.excludeFromDividends(address(dividendTracker)) (#1867)
- dividendTracker.excludeFromDividends(address(this)) (#1868)
- dividendTracker.excludeFromDividends(owner()) (#1869)
- dividendTracker.excludeFromDividends(address(_uniswapV2Router)) (#1870)
- dividendTracker.excludeFromDividends(0x000000000000000000000000000000000000dEaD) (#1871)
Event emitted after the call(s):
- ExcludeFromFees(account,excluded) (#1903)
- excludeFromFees(owner(),true) (#1874)
- ExcludeFromFees(account,excluded) (#1903)
- excludeFromFees(address(this),true) (#1877)
- ExcludeFromFees(account,excluded) (#1903)
- excludeFromFees(developerWallet,true) (#1876)
- ExcludeFromFees(account,excluded) (#1903)
- excludeFromFees(marketingWallet,true) (#1875)
- Transfer(address(0),account,amount) (#1040)
- _mint(owner(),_totalSupply) (#1889)
Reentrancy in YarrTokenDividendTracker.processAccount(address,bool) (#1695-1705):
External calls:
- amount = _withdrawDividendOfUser(account) (#1696)
- (success) = user.call{gas: 3000,value: _withdrawableDividend}() (#1409)
Event emitted after the call(s):
- Claim(account,amount,automatic) (#1700)
Reentrancy in YarrToken.processDividendTracker(uint256) (#1998-2001):
External calls:
- (iterations,claims,lastProcessedIndex) = dividendTracker.process(gas) (#1999)
Event emitted after the call(s):
- ProcessedDividendTracker(iterations,claims,lastProcessedIndex,false,gas,tx.origin) (#2000)
Reentrancy in YarrToken.swapAndLiquify(uint256) (#2076-2114):
External calls:
- swapTokensForBnb(toSwap,address(this)) (#2089)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,_to,block.timestamp) (#2129-2135)
- addLiquidity(halfLiquidityTokens,bnbToAddLiquidityWith) (#2098)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#2142-2149)
- (success) = address(dividendTracker).call{value: dividends}() (#2107)
External calls sending eth:
- addLiquidity(halfLiquidityTokens,bnbToAddLiquidityWith) (#2098)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#2142-2149)
- marketingWallet.transfer(marketingAmount) (#2101)
- developerWallet.transfer(developerAmount) (#2104)
- (success) = address(dividendTracker).call{value: dividends}() (#2107)
Event emitted after the call(s):
- SendDividends(toSwap - halfLiquidityTokens,dividends) (#2110)
- SwapAndLiquify(halfLiquidityTokens,bnbToAddLiquidityWith) (#2113)
Apply the check-effects-interactions pattern.

Additional information: link

YarrTokenDividendTracker.getAccount(address) (#1561-1602) uses timestamp for comparisons
Dangerous comparisons:
- nextClaimTime > block.timestamp (#1599-1601)
YarrTokenDividendTracker.canAutoClaim(uint256) (#1623-1629) uses timestamp for comparisons
Dangerous comparisons:
- lastClaimTime > block.timestamp (#1624)
- block.timestamp.sub(lastClaimTime) >= claimWait (#1628)
Avoid relying on block.timestamp.

Additional information: link

Context._msgData() (#687-689) is never used and should be removed
DividendPayingToken._transfer(address,address,uint256) (#1459-1465) is never used and should be removed
SafeCast.toInt128(int256) (#581-584) is never used and should be removed
SafeCast.toInt16(int256) (#635-638) is never used and should be removed
SafeCast.toInt32(int256) (#617-620) is never used and should be removed
SafeCast.toInt64(int256) (#599-602) is never used and should be removed
SafeCast.toInt8(int256) (#653-656) is never used and should be removed
SafeCast.toUint128(uint256) (#476-479) is never used and should be removed
SafeCast.toUint16(uint256) (#536-539) is never used and should be removed
SafeCast.toUint224(uint256) (#461-464) is never used and should be removed
SafeCast.toUint32(uint256) (#521-524) is never used and should be removed
SafeCast.toUint64(uint256) (#506-509) is never used and should be removed
SafeCast.toUint8(uint256) (#551-554) is never used and should be removed
SafeCast.toUint96(uint256) (#491-494) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#397-406) is never used and should be removed
SafeMath.mod(uint256,uint256) (#359-361) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#423-432) is never used and should be removed
SafeMath.sub(uint256,uint256,string) (#376-383) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (#230-236) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (#272-277) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (#284-289) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (#255-265) is never used and should be removed
SafeMath.trySub(uint256,uint256) (#243-248) is never used and should be removed
SignedSafeMath.div(int256,int256) (#181-183) is never used and should be removed
SignedSafeMath.mul(int256,int256) (#167-169) is never used and should be removed
Remove unused functions.

Additional information: link

YarrToken.maxSellTransactionAmount (#1767) is set pre-construction with a non-constant function or state variable:
- _totalSupply.div(100)
YarrToken.swapTokensAtAmount (#1768) is set pre-construction with a non-constant function or state variable:
- _totalSupply.div(1000_000)
YarrToken.maxLimit (#2161) is set pre-construction with a non-constant function or state variable:
- _totalSupply.div(100).mul(2)
Remove any initialization of state variables via non-constant state variables or function calls. If variables must be set upon contract deployment, locate initialization in the constructor instead.

Additional information: link

Pragma version0.8.11 (#2) necessitates a version too recent to be trusted. Consider deploying with 0.6.12/0.7.6/0.8.7
solc-0.8.11 is not recommended for deployment
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.

Additional information: link

Reentrancy in YarrToken._transfer(address,address,uint256) (#2025-2074):
External calls:
- swapAndLiquify(contractTokenBalance) (#2046)
- marketingWallet.transfer(marketingAmount) (#2101)
- developerWallet.transfer(developerAmount) (#2104)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#2046)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#2142-2149)
- marketingWallet.transfer(marketingAmount) (#2101)
- developerWallet.transfer(developerAmount) (#2104)
- (success) = address(dividendTracker).call{value: dividends}() (#2107)
State variables written after the call(s):
- super._transfer(from,address(this),fees) (#2061)
- _balances[sender] = senderBalance - amount (#1015)
- _balances[recipient] += amount (#1017)
- super._transfer(from,to,amount) (#2064)
- _balances[sender] = senderBalance - amount (#1015)
- _balances[recipient] += amount (#1017)
Event emitted after the call(s):
- ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (#2070)
- Transfer(sender,recipient,amount) (#1019)
- super._transfer(from,to,amount) (#2064)
- Transfer(sender,recipient,amount) (#1019)
- super._transfer(from,address(this),fees) (#2061)
Reentrancy in YarrToken.swapAndLiquify(uint256) (#2076-2114):
External calls:
- marketingWallet.transfer(marketingAmount) (#2101)
- developerWallet.transfer(developerAmount) (#2104)
External calls sending eth:
- addLiquidity(halfLiquidityTokens,bnbToAddLiquidityWith) (#2098)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#2142-2149)
- marketingWallet.transfer(marketingAmount) (#2101)
- developerWallet.transfer(developerAmount) (#2104)
- (success) = address(dividendTracker).call{value: dividends}() (#2107)
Event emitted after the call(s):
- SendDividends(toSwap - halfLiquidityTokens,dividends) (#2110)
- SwapAndLiquify(halfLiquidityTokens,bnbToAddLiquidityWith) (#2113)
Apply the check-effects-interactions pattern.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#10) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#11)
Variable DividendPayingToken._withdrawDividendOfUser(address)._withdrawableDividend (#1405) is too similar to YarrTokenDividendTracker.getAccount(address).withdrawableDividends (#1566)
Variable YarrToken.BNBRewardsFee (#1770) is too similar to YarrToken.setAllFeesPercentages(uint256,uint256,uint256,uint256)._bnbRewardFee (#1831)
Prevent variables from having similar names.

Additional information: link

YarrTokenDividendTracker.getAccountAtIndex(uint256) (#1604-1621) uses literals with too many digits:
- (0x0000000000000000000000000000000000000000,- 1,- 1,0,0,0,0,0) (#1615)
YarrToken.constructor() (#1844-1890) uses literals with too many digits:
- dividendTracker.excludeFromDividends(0x000000000000000000000000000000000000dEaD) (#1871)
YarrToken.updateGasForProcessing(uint256) (#1937-1942) uses literals with too many digits:
- require(bool,string)(newValue >= 200000 && newValue <= 500000,YarrToken: gasForProcessing must be between 200,000 and 500,000) (#1938)
YarrToken.slitherConstructorVariables() (#1754-2193) uses literals with too many digits:
- gasForProcessing = 300000 (#1780)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

name() should be declared external:
- ERC20.name() (#843-845)
symbol() should be declared external:
- ERC20.symbol() (#851-853)
decimals() should be declared external:
- ERC20.decimals() (#868-870)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (#894-897)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (#913-916)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (#931-945)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (#959-962)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (#978-986)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#1185-1187)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#1193-1196)
get(IterableMapping.Map,address) should be declared external:
- IterableMapping.get(IterableMapping.Map,address) (#1214-1216)
getIndexOfKey(IterableMapping.Map,address) should be declared external:
- IterableMapping.getIndexOfKey(IterableMapping.Map,address) (#1218-1223)
getKeyAtIndex(IterableMapping.Map,uint256) should be declared external:
- IterableMapping.getKeyAtIndex(IterableMapping.Map,uint256) (#1225-1227)
size(IterableMapping.Map) should be declared external:
- IterableMapping.size(IterableMapping.Map) (#1231-1233)
withdrawDividend() should be declared external:
- DividendPayingToken.withdrawDividend() (#1398-1400)
- YarrTokenDividendTracker.withdrawDividend() (#1531-1533)
dividendOf(address) should be declared external:
- DividendPayingToken.dividendOf(address) (#1425-1427)
withdrawnDividendOf(address) should be declared external:
- DividendPayingToken.withdrawnDividendOf(address) (#1439-1441)
getAccountAtIndex(uint256) should be declared external:
- YarrTokenDividendTracker.getAccountAtIndex(uint256) (#1604-1621)
process(uint256) should be declared external:
- YarrTokenDividendTracker.process(uint256) (#1648-1693)
setSafeManager(address) should be declared external:
- SafeToken.setSafeManager(address) (#1715-1717)
setExtraFeeOnSell(uint256) should be declared external:
- YarrToken.setExtraFeeOnSell(uint256) (#1825-1828)
setAllFeesPercentages(uint256,uint256,uint256,uint256) should be declared external:
- YarrToken.setAllFeesPercentages(uint256,uint256,uint256,uint256) (#1831-1841)
updateUniswapV2Router(address) should be declared external:
- YarrToken.updateUniswapV2Router(address) (#1894-1898)
setExcludeFromMaxTx(address,bool) should be declared external:
- YarrToken.setExcludeFromMaxTx(address,bool) (#1906-1908)
setExcludeFromAll(address) should be declared external:
- YarrToken.setExcludeFromAll(address) (#1910-1914)
excludeMultipleAccountsFromFees(address[],bool) should be declared external:
- YarrToken.excludeMultipleAccountsFromFees(address[],bool) (#1916-1921)
setAutomatedMarketMakerPair(address,bool) should be declared external:
- YarrToken.setAutomatedMarketMakerPair(address,bool) (#1923-1926)
updateGasForProcessing(uint256) should be declared external:
- YarrToken.updateGasForProcessing(uint256) (#1937-1942)
isExcludedFromFees(address) should be declared external:
- YarrToken.isExcludedFromFees(address) (#1956-1958)
isExcludedFromMaxTx(address) should be declared external:
- YarrToken.isExcludedFromMaxTx(address) (#1960-1962)
withdrawableDividendOf(address) should be declared external:
- YarrToken.withdrawableDividendOf(address) (#1964-1966)
dividendTokenBalanceOf(address) should be declared external:
- YarrToken.dividendTokenBalanceOf(address) (#1968-1970)
setSwapAndLiquifyEnabled(bool) should be declared external:
- YarrToken.setSwapAndLiquifyEnabled(bool) (#2020-2023)
setSwapTokensAtAmount(uint256) should be declared external:
- YarrToken.setSwapTokensAtAmount(uint256) (#2152-2155)
setExcludedFromWhale(address,bool) should be declared external:
- YarrToken.setExcludedFromWhale(address,bool) (#2186-2189)
Use the external attribute for functions never called from the contract.

Additional information: link

YarrToken.swapAndLiquify(uint256) (#2076-2114) performs a multiplication on the result of a division:
-marketingAmount = deltaBalance.div(totalFees).mul(marketingFee) (#2100)
YarrToken.swapAndLiquify(uint256) (#2076-2114) performs a multiplication on the result of a division:
-developerAmount = deltaBalance.div(totalFees).mul(developerFee) (#2103)
YarrToken.slitherConstructorVariables() (#1754-2193) performs a multiplication on the result of a division:
-maxLimit = _totalSupply.div(100).mul(2) (#2161)
Consider ordering multiplication before division.

Additional information: link

YarrToken.claim() (#2003-2005) ignores return value by dividendTracker.processAccount(address(msg.sender),false) (#2004)
YarrToken._transfer(address,address,uint256) (#2025-2074) ignores return value by dividendTracker.process(gas) (#2069-2072)
YarrToken.addLiquidity(uint256,uint256) (#2139-2150) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#2142-2149)
Ensure that all the return values of the function calls are used.

Additional information: link

DividendPayingToken.constructor(string,string)._name (#1361) shadows:
- ERC20._name (#823) (state variable)
DividendPayingToken.constructor(string,string)._symbol (#1361) shadows:
- ERC20._symbol (#824) (state variable)
Rename the local variables that shadow another component.

Additional information: link

YarrToken.setExtraFeeOnSell(uint256) (#1825-1828) should emit an event for:
- extraFeeOnSell = _extraFeeOnSell (#1826)
YarrToken.setSwapTokensAtAmount(uint256) (#2152-2155) should emit an event for:
- swapTokensAtAmount = _amount (#2154)
Emit an event for critical parameter changes.

Additional information: link

SafeToken.setSafeManager(address)._safeManager (#1715) lacks a zero-check on :
- safeManager = _safeManager (#1716)
Check that the address is not zero.

Additional information: link

DividendPayingToken._withdrawDividendOfUser(address) (#1404-1419) has external calls inside a loop: (success) = user.call{gas: 3000,value: _withdrawableDividend}() (#1409)
Favor pull over push strategy for external calls.

Additional information: link

YarrToken._totalSupply (#1766) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

YarrToken._transfer(address,address,uint256).iterations (#2069) is a local variable never initialized
YarrToken._transfer(address,address,uint256).claims (#2069) is a local variable never initialized
YarrToken._transfer(address,address,uint256).lastProcessedIndex (#2069) is a local variable never initialized
Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.

Additional information: link

Token seems to be untradeable: there is no PancakeSwap trading pair and no trading volumes. Ignore for presale.

Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive. Ignore for presale.

BscScan page for the token does not contain additional info: website, socials, description, etc.

Additional information: link

Unable to find whitepaper link on the website

Unable to find token on CoinGecko

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Unable to find token on CoinMarketCap

Additional information: link

Token is not listed at Mobula.Finance

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Unable to find token on CoinHunt

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Unable to find code repository for the project

Young tokens have high risks of scam / price dump / death

Young tokens have high risks of scam / price dump / death

Young tokens have high risks of scam / price dump / death

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank