i256 currently implements `From` all other signed types besides i128, but it does have a `i256::from_i128`. I'm currently working on average overflow issues in DataFusion which would become much easier if this implementation existed.
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Implement From<i128> for i256 (apache#10081)
alamb commentedon Jul 2, 2026
label_issue.pyautomatically added labels {'arrow'} from #10081[-]i256 doesn't implement From<i128>[/-][+]Support i256 implement From<i128>[/+]