[OT] - C++ exceptions are becoming more and more problematic

[Paul Backus]

On Thursday, 3 March 2022 at 12:05:11 UTC, Atila Neves wrote:
> On Friday, 25 February 2022 at 00:30:49 UTC, H. S. Teoh wrote:
>>
>> Go, Zig, Rust, and Odin all require explicit checking for 
>> error returns.
>
> Nope: 
> http://web.mit.edu/rust-lang_v1.25/arch/amd64_ubuntu1404/share/doc/rust/html/reference/expressions/operator-expr.html#the-question-mark-operator
>
> Years ago, I justified my preference for exceptions because the 
> rest of the call stack didn't have to be cluttered with 
> "rethrowing". Having to pattern match is better, but still a 
> pain. The macro solution they went with is the only one I know 
> of that is as easy to use as exceptions without the associated 
> baggage.

Swift has similar syntax sugar with its "try" keyword:

https://docs.swift.org/swift-book/LanguageGuide/ErrorHandling.html

And of course there are also more general-purpose language 
features like Haskell's "do" notation [1] and Scala's "for" 
comprehensions [2] that handle this as a special case.

[1] https://en.m.wikibooks.org/wiki/Haskell/do_notation
[2] https://docs.scala-lang.org/tour/for-comprehensions.html