Gas Optimizations

[code423n4]

Using "> 0" is less consuming than != 0 for uint in requirements :

The mint function in : https://github.com/code-423n4/2022-05-aura/blob/main/contracts/Aura.sol contract at the totalsupply check it checks using not equal to instead of if greater than for 0 checks and this is way more gas onsuming,

see :

Using :

function mint(address _to, uint256 _amount) external {
        require(totalSupply() != 0, "Not initialised");

        if (msg.sender != operator) {
            // dont error just return. if a shutdown happens, rewards on old system
            // can still be claimed, just wont mint cvx
            return;
        }

consumed :

gas	30113 gas
transaction cost	26185 gas 
execution cost	26185 gas 

---

Using :

function mint(address _to, uint256 _amount) external {
        require(totalSupply() != 0, "Not initialised");

        if (msg.sender != operator) {
            // dont error just return. if a shutdown happens, rewards on old system
            // can still be claimed, just wont mint cvx
            return;
        }

Consumed :

gas	30110 gas
transaction cost	26182 gas 
execution cost	26182 gas 

[dmvt]

Grouping this with the warden’s gas report, #109