Checked overflow
Trigger and inspect Solidity’s built-in overflow protection.
Solidity 0.8.36REPL modeExpected error
Why use this example
Use this pattern to confirm Solidity arithmetic and unit behavior before putting the same expression into a contract. The entry isolates checked overflow so its input, result, and state changes stay easy to compare.
Solidity to run
uint8 maximum = 255
maximum + uint8(1)What to expect
The addition produces Solidity’s checked-arithmetic panic, and the failed attempt is kept out of accepted replay history.
Continue the investigation
Change a value, add another expression, or open Inspect after the run. Accepted entries remain available to the next entry, and the clean replay keeps the complete result reproducible.
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