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

[Alexandru Ermicioi]

On Thursday, 24 February 2022 at 01:04:47 UTC, meta wrote:
>> There are reasons to be stuck with exceptions. Go is a no go, 
>> due to constant if else error checking it forces user to do.
>
> I agree, but it is getting better! Also the idea is to not 
> mimic them, but to learn from them instead and move forward..

Sure, D should be taking best parts from other languages and 
improve them. It's just, that having no exceptions, and no 
alternative as good as them or better, might not be the best 
idea. I personally don't care how exceptions are implemented 
under the hood as long as they   do their job well enough for 
staple source code (non-perf chunks of the code). Performance 
sensitive code should just use more performant alternatives to 
exceptions.

Imho, nicest option would be to provide ability to choose what 
implementation of exception mechanism a function uses. Then for 
function expected to fail often, you could choose to propagate 
the exception through as part of return argument, or any other 
mechanism that is performing better at cost of non-exception path.