Integer overflow and underflow

Overflow or underflow occurs when the value assigned to a variable exceeds the limit allowed for that data type. This is very common for the integer data type in solidity and has to be carefully verified during an assignment.

This recipe explains the situations in which integer overflow/underflow can occur and the ways to avoid them.

Getting ready

This recipe is all about solidity-based smart contracts. The Remix IDE (https://remix.ethereum.org) can help you quickly test and deploy a contract.

Also, you can use any Ethereum client (geth, parity, and so on) and the solc compiler to run this contract.

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