Submission Details
Severity:
Using unchecked blocks to save gas
Summary
[G-21] Using unchecked blocks to save gas
Solidity version 0.8+ comes with implicit overflow and underflow checks on unsigned integers. When an overflow or an underflow isn't possible (as an example, when a comparison is made before the arithmetic operation), some gas can be saved by using an unchecked block.
see resource : https://github.com/ethereum/solidity/issues/10695
file: /src/libraries/OracleLib.sol
29 uint256 secondsSince = block.timestamp - updatedAt;
https://github.com/Cyfrin/2023-07-foundry-defi-stablecoin/blob/main/src/libraries/OracleLib.sol#L29
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Total prize
15,000 USDC
nSLOC
23664 USDC / LOC
14,000 USDC
1,000 USDC
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