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A comment on Rust RAII is better than the Haskell bracket pattern. Parent comment

Re:Rust RAII is better than the Haskell bracket pattern by cesarb on Tuesday October 09, 2018 @08:10AM (#18175225)
The same way you would handle an error on fwrite() or fflush(). Any of them failing means that the data wasn't written correctly; what to do with that depends on the program.
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