you could check if ret > ret \* 10 + characters[i]-48, if so it has wrapped arou... | Hacker News

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voidUpdate 35 days ago | parent | context | favorite | on: No way to parse integers in C (2022)

you could check if ret > ret * 10 + characters[i]-48, if so it has wrapped around and you return an error

thomashabets2 35 days ago | [–]

For unsigned that could work, but signed overflow is UB.

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