Platform: Code4rena
Start Date: 20/09/2022
Pot Size: $30,000 USDC
Total HM: 12
Participants: 198
Period: 3 days
Judge: 0xean
Total Solo HM: 2
Id: 164
League: ETH
Rank: 172/198
Findings: 1
Award: $9.09
🌟 Selected for report: 0
🚀 Solo Findings: 0
🌟 Selected for report: IllIllI
Also found by: 0v3rf10w, 0x040, 0x1f8b, 0x4non, 0x85102, 0xA5DF, 0xDanielC, 0xNazgul, 0xSmartContract, 0xbepresent, 0xc0ffEE, 0xsam, 2997ms, AkshaySrivastav, Amithuddar, Atarpara, Aymen0909, B2, Bnke0x0, CertoraInc, Chom, ChristianKuri, CodingNameKiki, Deivitto, Diana, DimitarDimitrov, Diraco, Funen, JC, JLevick, JohnSmith, Junnon, KIntern_NA, Lambda, MasterCookie, Matin, Noah3o6, Ocean_Sky, OptimismSec, RaymondFam, Respx, ReyAdmirado, RockingMiles, Rohan16, Rolezn, Ruhum, Saintcode_, Satyam_Sharma, Sm4rty, SnowMan, SooYa, Sta1400, StevenL, Tadashi, Tagir2003, TomJ, Tomio, Tomo, V_B, Waze, WilliamAmbrozic, Yiko, __141345__, a12jmx, adriro, ajtra, ak1, async, aysha, beardofginger, bobirichman, brgltd, bulej93, c3phas, carrotsmuggler, caventa, ch0bu, cryptostellar5, cryptphi, csanuragjain, d3e4, delfin454000, dharma09, djxploit, durianSausage, eighty, emrekocak, erictee, exd0tpy, fatherOfBlocks, francoHacker, gianganhnguyen, gogo, got_targ, hxzy, ignacio, ikbkln, imare, indijanc, jag, jpserrat, karanctf, ladboy233, leosathya, lucacez, lukris02, m9800, malinariy, martin, medikko, mics, millersplanet, mrpathfindr, nalus, natzuu, neko_nyaa, oyc_109, pauliax, peanuts, pedroais, peiw, pfapostol, prasantgupta52, rbserver, ret2basic, rokinot, rotcivegaf, rvierdiiev, sach1r0, samruna, seyni, slowmoses, subtle77, supernova, tgolding55, tibthecat, tnevler, w0Lfrum, yaemsobak, zishansami
9.086 USDC - $9.09
1)Use custom errors rather than revert()/require() strings to save gas
File: 2022-09-vtvl\contracts\token\FullPremintERC20Token.sol 11,9: require(supply_ > 0, "NO_ZERO_MINT");
File: 2022-09-vtvl\contracts\token\FullPremintERC20Token.sol: 11: require(supply_ > 0, "NO_ZERO_MINT");
File: 2022-09-vtvl\contracts\token\VariableSupplyERC20Token.sol:
27: require(initialSupply_ > 0 || maxSupply_ > 0, "INVALID_AMOUNT");
37: require(account != address(0), "INVALID_ADDRESS");
41: require(amount <= mintableSupply, "INVALID_AMOUNT");
This change saves 6 gas per instance
File: 2022-09-vtvl\contracts\token\FullPremintERC20Token.sol 11,25: require(supply_ > 0, "NO_ZERO_MINT");
File: 2022-09-vtvl\contracts\token\VariableSupplyERC20Token.sol 27,32: require(initialSupply_ > 0 || maxSupply_ > 0, "INVALID_AMOUNT"); 27,50: require(initialSupply_ > 0 || maxSupply_ > 0, "INVALID_AMOUNT");