Monthly Ask Anything (July 2023)

Use this thread to ask any Haskell related questions which you think doesn't deserve a thread of their own. Ask away!

8 points · 12 comments · view on lemmy.world

12 Comments

someacnt@kbin.social · 2 pts · 3y (4 replies)

Hello. I still cannot see this magazine from lemmy (specifically, sopuli.xyz). Does anyone know why? Is there a way I could fix this? Thank you!

jaror@kbin.social · 2 pts · 3y (1 reply)
someacnt@kbin.social · 2 pts · 3y

I see, I will report soon. Could not find time to do so now, sadly

demesisx@infosec.pub · 1 pts · 3y

Sounds like that instance isn’t federated with kbin.social. I can see it just fine over here in infosec.pub

jaror@kbin.social · 1 pts · 3y

Strange. It does see https://sopuli.xyz/c/kbinMeta@kbin.social, but not https://sopuli.xyz/c/haskell@kbin.social

Maybe you can try reaching out to the admins as that error page suggests.

tfcmad@lemmy.ml · 0 pts · 3y (1 reply)

Having learned Haskell in University, I've not yet used it in my role as a software developer.

What are the real world use cases for Haskell?

jaror@kbin.social · 1 pts · 3y

I like to use https://www.libhunt.com/l/haskell to explore popular Haskell projects. The three projects with the most stars on GitHub are:

  • ShellCheck, which checks shell scripts for potential problems
  • Pandoc, which converts documents between different formats
  • Postgrest, which serves a REST API from postgres databases

There's also the State of the Haskell Ecosystem page which rates the level of maturity of different use-cases and programming needs.

kleidukos@kbin.social · 0 pts · 3y (1 reply)

Why must FinalizerPtr take a foreign function that uses the ccall calling convention? Is there a concrete thing preventing GHC from accepting capi?

glguy@kbin.social · 1 pts · 3y

I suspect that comment predates the existence of capi and is trying to avoid having some other actual calling convention like stdcall because the function pointer is actually invoked from some C code in the RTS. capi is a sort of pseudo-calling-convention in that it generates some C code and then calls that stub.

Have you tried using a capi defined funptr there to see what happens?