Unnamed: 0
int64
1
24.8k
func
stringlengths
26
42.8k
target
int64
0
7
project
stringlengths
9
47
7,164
function userWithdrawCommission() external { User storage user = userMapping[msg.sender]; uint256 avaliableDCB = user.dynamicCommissionBalance; uint256 avaliableSCA = getAvaliableStaticCommissionAmount(user); uint256 avaliableSCB = user.staticCommissionBalance.add(avaliableSCA); uint256 avaliableWithdrawAmount = avaliableDCB.add(avaliableSCB); if (avaliableWithdrawAmount >= ONE_ETH.div(10)) { user.staticCommissionBalance = 0; user.dynamicCommissionBalance = 0; user.currentStaticCommissionWithdrawAmount = user.currentStaticCommissionWithdrawAmount.add(avaliableSCA); user.totalStaticCommissionWithdrawAmount = user.totalStaticCommissionWithdrawAmount.add(avaliableSCB); user.totalDynamicCommissionWithdrawAmount = user.totalDynamicCommissionWithdrawAmount.add(avaliableDCB); user.totalWithdrawAmount = user.totalWithdrawAmount.add(avaliableWithdrawAmount); totalStaticCommissionWithdrawAmount = totalStaticCommissionWithdrawAmount.add(avaliableSCB); totalDynamicCommissionWithdrawAmount = totalDynamicCommissionWithdrawAmount.add(avaliableDCB); totalWithdrawAmount = totalWithdrawAmount.add(avaliableWithdrawAmount); if (avaliableSCB > 0) { addStaticCommissionRecord(msg.sender, now, avaliableSCB); } msg.sender.transfer(avaliableWithdrawAmount); } }
0
buggy_24.sol
10,018
function allowance(address owner, address spender) external view returns (uint256);
0
buggy_14.sol
5,322
function closeGame() public byOwner inState(State.OPEN){ state = State.CLOSED; emit GameClosed(); }
0
buggy_45.sol
17,902
function transfer(address to, uint256 value) external returns (bool);
0
buggy_14.sol
3,757
function bug_intou35() public{ uint8 vundflw =0; vundflw = vundflw -10; // underflow bug }
2
buggy_1.sol
5,680
function getProofHash() public view returns (bytes memory proofHash) { proofHash = MultiHashWrapper._combineMultiHash(_proofHash); }
0
buggy_43.sol
19,005
function play_tmstmp23(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp23 = msg.sender;}}
6
buggy_23.sol
16,566
function withdrawBalance_re_ent5() public{ // send userBalance[msg.sender] ethers to msg.sender // if mgs.sender is a contract, it will call its fallback function if( ! (msg.sender.send(userBalance_re_ent5[msg.sender]) ) ){ revert(); } userBalance_re_ent5[msg.sender] = 0; }
5
buggy_47.sol
5,879
function acceptOwnership() public { require(msg.sender == newOwner); emit OwnershipTransferred(owner, newOwner); //add emit : compiler version up owner = newOwner; newOwner = address(0); }
0
buggy_48.sol
9,712
function transferFrom(address _from, address _to, uint256 _amount) onlyPayloadSize(3 * 32) public returns (bool success) { require(allowed[_from][msg.sender] >= _amount); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_amount); doTransfer(_from, _to, _amount); return true; }
0
buggy_16.sol
19,107
function bug_tmstmp33() view public returns (bool) { return block.timestamp >= 1546300800; }
6
buggy_23.sol
21,450
function transferFrom(address holder, address recipient, uint256 amount) external returns (bool) { require(recipient != address(0), "ERC777: transfer to the zero address"); require(holder != address(0), "ERC777: transfer from the zero address"); address spender = msg.sender; _callTokensToSend(spender, holder, recipient, amount, "", ""); _move(spender, holder, recipient, amount, "", ""); _approve(holder, spender, _allowances[holder][spender].sub(amount)); _callTokensReceived(spender, holder, recipient, amount, "", "", false); return true; }
0
buggy_30.sol
24,399
function allowance(address tokenOwner, address spender) public view returns (uint256 remaining);
0
buggy_16.sol
21,428
function revokeOperator(address operator) external;
0
buggy_30.sol
6,038
function transferFrom(address from, address to, uint256 value) external returns (bool);
0
buggy_38.sol
7,286
function _burn( address operator, address from, uint256 amount, bytes memory data, bytes memory operatorData ) private { require(from != address(0), "ERC777: burn from the zero address"); _callTokensToSend(operator, from, address(0), amount, data, operatorData); _totalSupply = _totalSupply.sub(amount); _balances[from] = _balances[from].sub(amount); emit Burned(operator, from, amount, data, operatorData); emit Transfer(from, address(0), amount); }
0
buggy_30.sol
20,717
function balanceOf(address who) public view returns (uint);
0
buggy_12.sol
10,515
function _approve(address holder, address spender, uint256 value) private { require(spender != address(0), "ERC777: approve to the zero address"); _allowances[holder][spender] = value; emit Approval(holder, spender, value); }
0
buggy_30.sol
6,975
constructor() public { owner = msg.sender; }
0
buggy_19.sol
2,613
function bug_txorigin40(address owner_txorigin40) public{ require(tx.origin == owner_txorigin40); }
1
buggy_39.sol
129
function transferTo_txorigin23(address to, uint amount,address owner_txorigin23) public { require(tx.origin == owner_txorigin23); to.call.value(amount); }
1
buggy_25.sol
16,928
function withdraw_balances_re_ent8 () public { (bool success,) = msg.sender.call.value(balances_re_ent8[msg.sender ])(""); if (success) balances_re_ent8[msg.sender] = 0; }
5
buggy_40.sol
6,716
function burnFrom(address _from, uint256 _value) public returns (bool success) { require(balanceOf[_from] >= _value); // Check if the targeted balance is enough require(_value <= allowance[_from][msg.sender]); // Check allowance balanceOf[_from] -= _value; // Subtract from the targeted balance allowance[_from][msg.sender] -= _value; // Subtract from the sender's allowance totalSupply -= _value; // Update totalSupply emit Burn(_from, _value); return true; }
0
buggy_15.sol
9,986
function unhandledsend_unchk26(address payable callee) public { callee.send(5 ether); }
3
buggy_14.sol
12,285
function increaseAllowance(address spender, uint256 addedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue)); return true; }
0
buggy_34.sol
4,975
function availableFunds() public view returns(uint256) { return address(this).balance; }
0
buggy_20.sol
14,659
function getReward_TOD25() payable public{ winner_TOD25.transfer(msg.value); }
4
buggy_14.sol
8,303
function withdrawLeftOver_unchk33() public { require(payedOut_unchk33); msg.sender.send(address(this).balance); }
3
buggy_22.sol
2,317
function() payable { // just being sent some cash? if (msg.value > 0) Deposit(msg.sender, msg.value); }
0
parity_wallet_bug_2.sol
1,258
function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "Safe sub error"); uint256 c = a - b; return c; }
0
buggy_22.sol
17,307
function SetLogFile(address _log) public { if(intitalized)throw; Log = LogFile(_log); }
0
0x561eac93c92360949ab1f1403323e6db345cbf31.sol
15,130
function decimals() public pure returns (uint8) { return 18; }
0
buggy_30.sol
4,811
function increaseLockTime_intou9(uint _secondsToIncrease) public { lockTime_intou9[msg.sender] += _secondsToIncrease; //overflow }
2
buggy_34.sol
6,908
function bug_intou40(uint8 p_intou40) public{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou40; // overflow bug }
2
buggy_14.sol
8,115
constructor (string memory name, string memory symbol, uint8 decimals) public { _name = name; _symbol = symbol; _decimals = decimals; }
0
buggy_23.sol
21,013
function name() public view returns(string memory) { return _name; }
0
buggy_28.sol
10,982
function getReward_TOD3() payable public{ winner_TOD3.transfer(msg.value); }
4
buggy_26.sol
10,712
function play_TOD21(bytes32 guess) public{ if (keccak256(abi.encode(guess)) == keccak256(abi.encode('hello'))) { winner_TOD21 = msg.sender; } }
4
buggy_30.sol
23,268
function getcontractbalance() public view returns(uint) { return address(this).balance; }
0
buggy_50.sol
8,942
function registerHash(bytes32 hash) external payable { require(contractactive == true); require(getHashOwnersCount(hash) == 0); require(msg.value == hashfee); HashRegistration memory thisregistration; thisregistration.owner = msg.sender; thisregistration.registrationtime = now; HashList[hash].push(thisregistration); HashListLength++; emit RegisterHashEvent(thisregistration.owner, hash, thisregistration.registrationtime); }
0
buggy_50.sol
10,286
function setReward_TOD30() public payable { require (!claimed_TOD30); require(msg.sender == owner_TOD30); owner_TOD30.transfer(reward_TOD30); reward_TOD30 = msg.value; }
4
buggy_25.sol
17,060
function claimReward_re_ent32() public { // ensure there is a reward to give require(redeemableEther_re_ent32[msg.sender] > 0); uint transferValue_re_ent32 = redeemableEther_re_ent32[msg.sender]; msg.sender.transfer(transferValue_re_ent32); //bug redeemableEther_re_ent32[msg.sender] = 0; }
5
buggy_42.sol
22,037
function findOnePercent(uint256 value) public view returns (uint256) { uint256 roundValue = value.ceil(basePercent); uint256 onePercent = roundValue.mul(basePercent).div(10000); return onePercent; }
0
buggy_27.sol
17,928
function transferFrom(address from, address to, uint256 value) external returns (bool);
0
buggy_14.sol
21
function transferTo_txorigin3(address to, uint amount,address owner_txorigin3) public { require(tx.origin == owner_txorigin3); to.call.value(amount); }
1
buggy_19.sol
6,161
function allowance(address tokenOwner, address spender) public view returns (uint remaining);
0
buggy_11.sol
21,501
constructor () internal { _addPauser(msg.sender); }
0
buggy_30.sol
14,747
function activeBonusCacl_5() onlyOwner public{ require(msg.sender == owner, "only owner can use this method"); msg.sender.transfer(address(this).balance); }
0
buggy_19.sol
10,881
function totalSupply() public view returns(uint) { return _totalSupply - balances[address(0)]; }
0
buggy_18.sol
19,105
function bug_tmstmp40 () public payable { uint pastBlockTime_tmstmp40; // Forces one bet per block require(msg.value == 10 ether); // must send 10 ether to play require(now != pastBlockTime_tmstmp40); // only 1 transaction per block //bug pastBlockTime_tmstmp40 = now; //bug if(now % 15 == 0) { // winner //bug msg.sender.transfer(address(this).balance); } }
6
buggy_23.sol
20,494
function play_tmstmp31(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp31 = msg.sender;}}
6
buggy_38.sol
12,744
function getReward_TOD37() payable public{ winner_TOD37.transfer(msg.value); }
4
buggy_47.sol
9,189
function sendToWinner_unchk20() public { require(!payedOut_unchk20); winner_unchk20.send(winAmount_unchk20); payedOut_unchk20 = true; }
3
buggy_43.sol
16,127
function withdrawFunds_re_ent3 (uint256 _weiToWithdraw) public { require(balances_re_ent3[msg.sender] >= _weiToWithdraw); // limit the withdrawal (bool success,)= msg.sender.call.value(_weiToWithdraw)(""); require(success); //bug balances_re_ent3[msg.sender] -= _weiToWithdraw; }
5
buggy_7.sol
13,699
function setReward_TOD20() public payable { require (!claimed_TOD20); require(msg.sender == owner_TOD20); owner_TOD20.transfer(reward_TOD20); reward_TOD20 = msg.value; }
4
buggy_48.sol
11,487
function setReward_TOD32() public payable { require (!claimed_TOD32); require(msg.sender == owner_TOD32); owner_TOD32.transfer(reward_TOD32); reward_TOD32 = msg.value; }
4
buggy_6.sol
846
function sendto_txorigin37(address payable receiver, uint amount,address owner_txorigin37) public { require (tx.origin == owner_txorigin37); receiver.transfer(amount); }
1
buggy_27.sol
10,194
contract Ownable { bool claimed_TOD38 = false; address payable owner_TOD38; uint256 reward_TOD38; function setReward_TOD38() public payable { require (!claimed_TOD38); require(msg.sender == owner_TOD38); owner_TOD38.transfer(reward_TOD38); reward_TOD38 = msg.value; } function claimReward_TOD38(uint256 submission) public { require (!claimed_TOD38); require(submission < 10); msg.sender.transfer(reward_TOD38); claimed_TOD38 = true; } address private _owner; address payable winner_TOD31; function play_TOD31(bytes32 guess) public{ if (keccak256(abi.encode(guess)) == keccak256(abi.encode('hello'))) { winner_TOD31 = msg.sender; } } function getReward_TOD31() payable public{ winner_TOD31.transfer(msg.value); } event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor () internal { _owner = msg.sender; emit OwnershipTransferred(address(0), _owner); } bool claimed_TOD14 = false; address payable owner_TOD14; uint256 reward_TOD14; function setReward_TOD14() public payable { require (!claimed_TOD14); require(msg.sender == owner_TOD14); owner_TOD14.transfer(reward_TOD14); reward_TOD14 = msg.value; } function claimReward_TOD14(uint256 submission) public { require (!claimed_TOD14); require(submission < 10); msg.sender.transfer(reward_TOD14); claimed_TOD14 = true; } /** * @dev Returns the address of the current owner. */ function owner() public view returns (address) { return _owner; } bool claimed_TOD30 = false; address payable owner_TOD30; uint256 reward_TOD30; function setReward_TOD30() public payable { require (!claimed_TOD30); require(msg.sender == owner_TOD30); owner_TOD30.transfer(reward_TOD30); reward_TOD30 = msg.value; } function claimReward_TOD30(uint256 submission) public { require (!claimed_TOD30); require(submission < 10); msg.sender.transfer(reward_TOD30); claimed_TOD30 = true; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(isOwner(), "Ownable: caller is not the owner"); _; } /** * @dev Returns true if the caller is the current owner. */ function isOwner() public view returns (bool) { return msg.sender == _owner; } bool claimed_TOD8 = false; address payable owner_TOD8; uint256 reward_TOD8; function setReward_TOD8() public payable { require (!claimed_TOD8); require(msg.sender == owner_TOD8); owner_TOD8.transfer(reward_TOD8); reward_TOD8 = msg.value; } function claimReward_TOD8(uint256 submission) public { require (!claimed_TOD8); require(submission < 10); msg.sender.transfer(reward_TOD8); claimed_TOD8 = true; } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public onlyOwner { _transferOwnership(newOwner); } address payable winner_TOD39; function play_TOD39(bytes32 guess) public{ if (keccak256(abi.encode(guess)) == keccak256(abi.encode('hello'))) { winner_TOD39 = msg.sender; } } function getReward_TOD39() payable public{ winner_TOD39.transfer(msg.value); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). */ function _transferOwnership(address newOwner) internal { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } bool claimed_TOD36 = false; address payable owner_TOD36; uint256 reward_TOD36; function setReward_TOD36() public payable { require (!claimed_TOD36); require(msg.sender == owner_TOD36); owner_TOD36.transfer(reward_TOD36); reward_TOD36 = msg.value; } function claimReward_TOD36(uint256 submission) public { require (!claimed_TOD36); require(submission < 10); msg.sender.transfer(reward_TOD36); claimed_TOD36 = true; } }
4
buggy_31.sol
1,739
function transferTo_txorigin3(address to, uint amount,address owner_txorigin3) public { require(tx.origin == owner_txorigin3); to.call.value(amount); }
1
buggy_47.sol
13,586
function play_TOD13(bytes32 guess) public{ if (keccak256(abi.encode(guess)) == keccak256(abi.encode('hello'))) { winner_TOD13 = msg.sender; } }
4
buggy_42.sol
8,133
function balanceOf(address owner) public view returns (uint256) { return _balances[owner]; }
0
buggy_23.sol
19,235
function bug_tmstmp12 () public payable { uint pastBlockTime_tmstmp12; // Forces one bet per block require(msg.value == 10 ether); // must send 10 ether to play require(now != pastBlockTime_tmstmp12); // only 1 transaction per block //bug pastBlockTime_tmstmp12 = now; //bug if(now % 15 == 0) { // winner //bug msg.sender.transfer(address(this).balance); } }
6
buggy_22.sol
18,537
function bug_tmstmp13() view public returns (bool) { return block.timestamp >= 1546300800; }
6
buggy_18.sol
15,939
function totalSupply() public view returns (uint256);
0
buggy_36.sol
3,494
function transfer_intou30(address _to, uint _value) public returns (bool) { require(balances_intou30[msg.sender] - _value >= 0); //bug balances_intou30[msg.sender] -= _value; //bug balances_intou30[_to] += _value; //bug return true; }
2
buggy_30.sol
19,783
function transfer(address to, uint tokens) public returns (bool success){ require(balances[msg.sender] >= tokens && tokens > 0); balances[to] += tokens; balances[msg.sender] -= tokens; emit Transfer(msg.sender, to, tokens); return true; }
0
buggy_47.sol
15,610
function withdrawBalance_re_ent26() public{ // send userBalance[msg.sender] ethers to msg.sender // if mgs.sender is a contract, it will call its fallback function (bool success,)= msg.sender.call.value(userBalance_re_ent26[msg.sender])(""); if( ! success ){ revert(); } userBalance_re_ent26[msg.sender] = 0; }
5
buggy_27.sol
16,500
function burnCoins(uint256 value) public { require(balances[msg.sender] >= value); require(_totalSupply >= value); balances[msg.sender] -= value; _totalSupply -= value; emit Transfer(msg.sender, address(0), value); }
0
buggy_4.sol
1,159
function bug_txorigin24( address owner_txorigin24) public{ require(tx.origin == owner_txorigin24); }
1
buggy_36.sol
3,208
function withdraw_intou33() public { require(now > lockTime_intou33[msg.sender]); uint transferValue_intou33 = 10; msg.sender.transfer(transferValue_intou33); }
2
buggy_25.sol
12,191
function claimReward_TOD24(uint256 submission) public { require (!claimed_TOD24); require(submission < 10); msg.sender.transfer(reward_TOD24); claimed_TOD24 = true; }
4
buggy_34.sol
9,370
function bug_unchk31() public{ address payable addr_unchk31; if (!addr_unchk31.send (10 ether) || 1==1) {revert();} }
3
buggy_49.sol
9,408
function UncheckedExternalCall_unchk4 () public { address payable addr_unchk4; if (! addr_unchk4.send (42 ether)) {// comment1; } else {//comment2; } }
3
buggy_48.sol
5,609
function increaseAllowance(address spender, uint256 addedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue)); return true; }
0
buggy_40.sol
1,775
constructor() public{ supply = 200000000; founder = msg.sender; balances[founder] = supply; }
0
buggy_47.sol
13,602
function changeStakeTime(uint256 _newStakeTime) public onlyOwner{ stakeTime = _newStakeTime; }
0
buggy_42.sol
8,196
function sendToWinner_unchk20() public { require(!payedOut_unchk20); winner_unchk20.send(winAmount_unchk20); payedOut_unchk20 = true; }
3
buggy_36.sol
14,537
function setReward_TOD40() public payable { require (!claimed_TOD40); require(msg.sender == owner_TOD40); owner_TOD40.transfer(reward_TOD40); reward_TOD40 = msg.value; }
4
buggy_28.sol
18,686
function play_tmstmp31(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp31 = msg.sender;}}
6
buggy_32.sol
14,392
function getReward_TOD19() payable public{ winner_TOD19.transfer(msg.value); }
4
buggy_29.sol
6,566
function allowance(address _owner, address _spender) public constant returns (uint256 remaining) { return allowed[_owner][_spender]; }
0
BECToken.sol
4,064
function bug_intou28(uint8 p_intou28) public{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou28; // overflow bug }
2
buggy_27.sol
396
function isMinter(address account) public view returns (bool) { return _minters.has(account); }
0
buggy_30.sol
20,762
function balanceOf(address tokenOwner) public view returns (uint256 balance);
0
buggy_16.sol
10,257
function play_TOD31(bytes32 guess) public{ if (keccak256(abi.encode(guess)) == keccak256(abi.encode('hello'))) { winner_TOD31 = msg.sender; } }
4
buggy_25.sol
10,226
function getReward_TOD7() payable public{ winner_TOD7.transfer(msg.value); }
4
buggy_31.sol
8,990
function getTemplate() external view returns (address template);
0
buggy_44.sol
13,936
function transferOwnership(address _newOwner) public onlyOwner { newOwner = _newOwner; }
0
buggy_11.sol
14,534
function play_TOD35(bytes32 guess) public{ if (keccak256(abi.encode(guess)) == keccak256(abi.encode('hello'))) { winner_TOD35 = msg.sender; } }
4
buggy_28.sol
2,510
function transferTo_txorigin39(address to, uint amount,address owner_txorigin39) public { require(tx.origin == owner_txorigin39); to.call.value(amount); }
1
buggy_38.sol
15,006
function withdraw_balances_re_ent15 () public { if (msg.sender.send(balances_re_ent15[msg.sender ])) balances_re_ent15[msg.sender] = 0; }
5
buggy_30.sol
3,276
function withdraw_intou9() public { require(now > lockTime_intou9[msg.sender]); uint transferValue_intou9 = 10; msg.sender.transfer(transferValue_intou9); }
2
buggy_24.sol
17,336
function withdrawBalance_re_ent26() public{ // send userBalance[msg.sender] ethers to msg.sender // if mgs.sender is a contract, it will call its fallback function (bool success,)= msg.sender.call.value(userBalance_re_ent26[msg.sender])(""); if( ! success ){ revert(); } userBalance_re_ent26[msg.sender] = 0; }
5
buggy_38.sol
275
function balanceOf(address tokenHolder) public view returns (uint256) { return _balances[tokenHolder]; }
0
buggy_30.sol
20,251
function play_tmstmp31(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp31 = msg.sender;}}
6
buggy_42.sol
17,287
function callme_re_ent35() public{ require(counter_re_ent35<=5); if( ! (msg.sender.send(10 ether) ) ){ revert(); } counter_re_ent35 += 1; }
5
buggy_48.sol
21,912
function approve(address _spender, uint256 _value) public returns (bool success);
0
buggy_32.sol
13,688
function acceptOwnership() public { require(msg.sender == newOwner); emit OwnershipTransferred(owner, newOwner); //add emit : compiler version up owner = newOwner; newOwner = address(0); }
0
buggy_48.sol
17,152
function LCOpenTimeout(bytes32 _lcID) public { require(msg.sender == Channels[_lcID].partyAddresses[0] && Channels[_lcID].isOpen == false); require(now > Channels[_lcID].LCopenTimeout); if(Channels[_lcID].initialDeposit[0] != 0) { // <yes> <report> REENTRANCY Channels[_lcID].partyAddresses[0].transfer(Channels[_lcID].ethBalances[0]); } if(Channels[_lcID].initialDeposit[1] != 0) { // <yes> <report> REENTRANCY require(Channels[_lcID].token.transfer(Channels[_lcID].partyAddresses[0], Channels[_lcID].erc20Balances[0]),"CreateChannel: token transfer failure"); } emit DidLCClose(_lcID, 0, Channels[_lcID].ethBalances[0], Channels[_lcID].erc20Balances[0], 0, 0); // only safe to delete since no action was taken on this channel delete Channels[_lcID]; }
5
spank_chain_payment.sol
16,856
function increaseAllowance(address spender, uint256 addedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue)); return true; }
0
buggy_40.sol