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Why I Prefer Exceptions to Error Values (cedardb.com)

submitted 1 month ago by AlexKochetkova@programming.dev to c/programming@programming.dev

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[–] marcos@lemmy.world 9 points 1 month ago (4 children)

The problem is not encoding the result.

The problem is that you need some support from the language to make it easy to deal with. Otherwise you'll get into go-style infinite if (err != null) handlers that will make your code unreadable.

[+] lysdexic@programming.dev -6 points 1 month ago (3 children)

The problem is that you need some support from the language to make it easy to deal with.

Nonsense.

if (result.isSuccess()) {
    do_something(result.value);
}
else {
   handle_error(result error);
}

[–] sukhmel@programming.dev 6 points 1 month ago (2 children)

I feel like this will have zero protection against

if (result.isSuccess()) {
    handle_error(result.error);
} else {
    do_something(result.value);
}

Besides, this is exactly what the comment said about having to constantly check for return values at call site. I think this may be mitigated by some clever macro-magic, but that will become a mess fast.

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