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Matt Godbolt sold me on Rust by showing me C++

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611 points LorenDB | 1 comments | 06 May 25 17:51 UTC | HN request time: 0s | source
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codedokode ◴[06 May 25 19:45 UTC] No.43908897[source]▶
What about catching integer overflow? Free open-source languages still cannot do it unlike they commercial competitors like Swift?
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kelnos ◴[06 May 25 20:44 UTC] No.43909444[source]▶
Rust does have checked arithmetic operations (that return Result), but you have to explicitly opt in to them, of course, and they're not as ergonomic to use as regular arithmetic.
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1. trealira ◴[06 May 25 21:09 UTC] No.43909660[source]▶
But, by default, normal arithmetic operations trap on overflow in debug mode, although they wrap with optimizations on.