[Haskell-cafe] Pointer equality for nullary constructors

Joachim Breitner mail at joachim-breitner.de
Mon Feb 19 19:40:27 UTC 2018


Hi David,

Am Sonntag, den 11.02.2018, 05:14 -0500 schrieb David Feuer:
> Can I use reallyUnsafePtrEquality# reliably to identify whether a
> value is a nullary constructor of a particular type?

after reading this I cam up with this idea:
https://ghc.haskell.org/trac/ghc/ticket/14826

You might have an idea of whether this would be useful in practice.

Cheers,
Joachim

-- 
Joachim “nomeata” Breitner
  mail at joachim-breitner.de
  https://www.joachim-breitner.de/
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