Prefix increments are cheaper than postfix increments

[code423n4]

Handle

robee

Vulnerability details

Prefix increments are cheaper than postfix increments.
Further more, using unchecked {++x} is even more gas efficient, and the gas saving accumulates every iteration and can make a real change
There is no risk of overflow caused by increamenting the iteration index in for loops (the ++i in for (uint256 i = 0; i < numIterations; ++i)).
But increments perform overflow checks that are not necessary in this case.

    change to prefix increment and unchecked: TreasuryAction.sol, i, 157

[jeffywu]

Duplicate #228

[pauliax]

#228