Submission Details
Severity:
Use assembly to check for `address(0)`
Summary
Vulnerability Details
Inline Assembly more gas efficient and Saving Gas with Simple Inlining.
There are 4 instances of this issue:
-
address(tokenContract) == address(0) should use assembly to check for
address(0) -
buyer == address(0) should use assembly to check for
address(0) -
seller == address(0) should use assembly to check for
address(0) -
i_arbiter == address(0) should use assembly to check for
address(0)
Impact
save gas
Tools Used
Recommendations
Use assembly to check for address(0):
function addrNotZero(address _addr) public pure {
assembly {
if iszero(_addr) {
mstore(0x00, "zero address")
revert(0x00, 0x20)
}
}
}
Prize pool breakdown
Total prize
40,000 USDC
nSLOC
186215 USDC / LOC
37,000 USDC
3,000 USDC
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