The storage update in approve is preserved, but both read-only getter functions are decompiled as no-op pure functions without arguments or return values, and approve is incorrectly marked payable.
The allowance(address owner, address spender) view function is not represented: the decompiled function performs no storage read and returns no uint256 value.
The public mapping getter for allowances(address owner, address spender) is also decompiled as a no-op function without the required second argument or return value.
approve is marked payable in the decompiled output, whereas the original function is nonpayable and must revert when called with nonzero msg.value.
Candidate
Score: 48/100
The approve storage update is preserved, but the public allowance getter is not decompiled correctly and approve has incorrect payable mutability.
The original allowance(address owner, address spender) view function returns allowances[owner][spender]. The decompiled Unresolved_dd62ed3e function accepts only one declared address, performs no storage read, returns no value, and is marked pure.
The decompiled output does not provide the required two-address allowance getter behavior, including its uint256 return value.
The original approve function is nonpayable and rejects calls carrying Ether, whereas the decompiled approve function is payable and accepts Ether.
An additional Unresolved_55b6ed5c function is present without corresponding source-level functionality and does not implement a meaningful operation.
Diff
Decompiled output is identical between baseline and candidate.