Platform: Code4rena
Start Date: 23/05/2022
Pot Size: $75,000 USDC
Total HM: 23
Participants: 75
Period: 7 days
Judge: GalloDaSballo
Total Solo HM: 13
Id: 130
League: ETH
Rank: 67/75
Findings: 1
Award: $50.15
🌟 Selected for report: 0
🚀 Solo Findings: 0
🌟 Selected for report: IllIllI
Also found by: 0x1f8b, 0x4non, 0xNazgul, 0xf15ers, 0xkatana, Chom, ControlCplusControlV, DavidGialdi, Deivitto, Dravee, ElKu, Fitraldys, Funen, GimelSec, MadWookie, MaratCerby, MiloTruck, Picodes, Randyyy, TerrierLover, TomJ, Tomio, UnusualTurtle, WatchPug, Waze, _Adam, asutorufos, c3phas, catchup, csanuragjain, delfin454000, djxploit, fatherOfBlocks, gzeon, hake, hansfriese, horsefacts, orion, oyc_109, pauliax, reassor, rfa, rotcivegaf, sach1r0, saian, sashik_eth, simon135, supernova, teddav, z3s
50.1536 USDC - $50.15
uint default value is 0 so we can remove = 0:Gauge.sol 179,21: for (uint i = 0; i < numRewards; i++) { 222,20: uint lower = 0; 254,20: uint lower = 0; 286,20: uint lower = 0; 353,21: for (uint i = 0; i < tokens.length; i++) { 481,21: uint reward = 0; 551,22: uint tokenId = 0; Minter.sol 57,21: for (uint i = 0; i < claimants.length; i++) { Pair.sol 20,29: uint public totalSupply = 0; 61,24: uint public index0 = 0; 62,24: uint public index1 = 0; 257,21: for (uint i = 0; i < _prices.length; i++) { 273,24: uint nextIndex = 0; 274,20: uint index = 0; 389,21: for (uint i = 0; i < 255; i++) { RewardsDistributor.sol 73,24: uint next_week = 0; 75,21: for (uint i = 0; i < 20; i++) { 103,19: uint _min = 0; 105,21: for (uint i = 0; i < 128; i++) { 119,19: uint _min = 0; 121,21: for (uint i = 0; i < 128; i++) { 148,21: for (uint i = 0; i < 20; i++) { 154,27: int128 dt = 0; 170,25: uint user_epoch = 0; 171,28: uint to_distribute = 0; 195,21: for (uint i = 0; i < 50; i++) { 227,25: uint user_epoch = 0; 228,28: uint to_distribute = 0; 252,21: for (uint i = 0; i < 50; i++) { 299,20: uint total = 0; Router.sol 90,21: for (uint i = 0; i < routes.length; i++) { 112,27: uint _totalSupply = 0; 316,21: for (uint i = 0; i < routes.length; i++) { Velo.sol 9,29: uint public totalSupply = 0; VelodromeLibrary.sol 24,21: for (uint i = 0; i < 255; i++) { Voter.sol 76,21: for (uint i = 0; i < _tokens.length; i++) { 101,30: uint256 _totalWeight = 0; 103,21: for (uint i = 0; i < _poolVoteCnt; i ++) { 128,21: for (uint i = 0; i < _poolCnt; i ++) { 139,34: uint256 _totalVoteWeight = 0; 140,30: uint256 _totalWeight = 0; 141,29: uint256 _usedWeight = 0; 143,21: for (uint i = 0; i < _poolCnt; i++) { 147,21: for (uint i = 0; i < _poolCnt; i++) { 266,21: for (uint i = 0; i < _gauges.length; i++) { 304,21: for (uint i = 0; i < _gauges.length; i++) { 310,21: for (uint i = 0; i < _gauges.length; i++) { 346,21: for (uint x = 0; x < _gauges.length; x++) { VotingEscrow.sol 584,27: int128 old_dslope = 0; 585,27: int128 new_dslope = 0; 622,26: uint block_slope = 0; // dblock/dt 632,25: for (uint i = 0; i < 255; ++i) { 636,32: int128 d_slope = 0; 884,19: uint _min = 0; 886,21: for (uint i = 0; i < 128; ++i) { 940,19: uint _min = 0; 942,21: for (uint i = 0; i < 128; ++i) { 960,22: uint d_block = 0; 961,18: uint d_t = 0; 996,17: uint dt = 0; 1017,21: for (uint i = 0; i < 255; ++i) { 1019,28: int128 d_slope = 0; 1145,20: uint votes = 0; 1146,21: for (uint i = 0; i < _tokenIds.length; i++) { 1168,22: uint32 lower = 0; 1192,20: uint votes = 0; 1193,21: for (uint i = 0; i < _tokenIds.length; i++) { 1225,29: for (uint i = 0; i < srcRepOld.length; i++) { 1249,29: for (uint i = 0; i < dstRepOld.length; i++) { 1295,29: for (uint i = 0; i < srcRepOld.length; i++) { 1320,29: for (uint i = 0; i < dstRepOld.length; i++) { 1325,29: for (uint i = 0; i < ownerTokenCount; i++) { governance/L2Governor.sol 326,24: for (uint256 i = 0; i < targets.length; ++i) { 343,28: for (uint256 i = 0; i < targets.length; ++i) {
++i use less gas than i++:++i costs less gas compared to i++. about 5 gas per iteration.
Gauge.sol 179,42: for (uint i = 0; i < numRewards; i++) { 353,45: for (uint i = 0; i < tokens.length; i++) { 405,51: for (uint i = _startIndex; i < _endIndex; i++) { 426,34: for (uint i; i < length; i++) { 448,55: for (uint i = _startIndex; i < _endIndex; i++) { 484,55: for (uint i = _startIndex; i < _endIndex; i++) { Minter.sol 57,48: for (uint i = 0; i < claimants.length; i++) { Pair.sol 257,46: for (uint i = 0; i < _prices.length; i++) { 389,35: for (uint i = 0; i < 255; i++) { RewardsDistributor.sol 75,34: for (uint i = 0; i < 20; i++) { 105,35: for (uint i = 0; i < 128; i++) { 121,35: for (uint i = 0; i < 128; i++) { 148,34: for (uint i = 0; i < 20; i++) { 195,34: for (uint i = 0; i < 50; i++) { 252,34: for (uint i = 0; i < 50; i++) { 301,48: for (uint i = 0; i < _tokenIds.length; i++) { Router.sol 90,45: for (uint i = 0; i < routes.length; i++) { 316,45: for (uint i = 0; i < routes.length; i++) { VelodromeLibrary.sol 24,35: for (uint i = 0; i < 255; i++) { Voter.sol 76,46: for (uint i = 0; i < _tokens.length; i++) { 143,40: for (uint i = 0; i < _poolCnt; i++) { 147,40: for (uint i = 0; i < _poolCnt; i++) { 266,46: for (uint i = 0; i < _gauges.length; i++) { 272,39: for (uint i = start; i < end; i++) { 304,46: for (uint i = 0; i < _gauges.length; i++) { 310,46: for (uint i = 0; i < _gauges.length; i++) { VotingEscrow.sol 1146,48: for (uint i = 0; i < _tokenIds.length; i++) { 1193,48: for (uint i = 0; i < _tokenIds.length; i++) { 1225,56: for (uint i = 0; i < srcRepOld.length; i++) { 1249,56: for (uint i = 0; i < dstRepOld.length; i++) { 1295,56: for (uint i = 0; i < srcRepOld.length; i++) { 1320,56: for (uint i = 0; i < dstRepOld.length; i++) { 1325,55: for (uint i = 0; i < ownerTokenCount; i++) {
Custom errors from Solidity 0.8.4 are cheaper than require messages.
https://blog.soliditylang.org/2021/04/21/custom-errors/
#0 - GalloDaSballo
2022-06-30T02:09:14Z
Would save between 100 and 500 gas