Andreas Kling b2e6843055 LibJS+AK: Fix integer overflow UB on (any Int32 - -2147483648) ...

It wasn't safe to use addition_would_overflow(a, -b) to check if
subtraction (a - b) would overflow, since it doesn't cover this case.

I don't know why we didn't have subtraction_would_overflow(), so this
patch adds it. :^)

2024-05-18 18:11:50 +02:00

423 B

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