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by greenhouse_gas
2947 days ago
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>It's undefined because in the majority of situations, it is the result of a bug, 1. If it's a bug, it should overflow or crash (implementation defined, not undefined), or do what Rust does, crash on -o0 (or, if it's illegal to change defined behavior based on optimization level, create a --crash-on-overflow flag) and overflow on everything else. 2. There is plenty of code where it's intentional (such as the infamous if(a+5<a)). |
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