18 Jul
2020
18 Jul
'20
1:49 p.m.
On 2020-07-18 5:33 p.m., James Cook wrote:
Hi haskell-cafe,
I've run into a strange error. It's easy for me to work around, but I still would like to know what causes it.
Here's a minimal example.
Oops, I just realized I'm not using existential types at all. A value of type T needs to be able to produce *any* instance of show requested, so the error makes sense. Sorry for the noise. I'm resurrecting some old code of mine and misinterpreted what I was doing. -- James