blob: ba6879839ccd9e269d5477cb6674a881f4edf467 (
plain)
1
2
3
4
5
6
|
T12163.hs:8:16: error:
• Can't make a derived instance of ‘Functor (T a)’:
Constructor ‘Mk’ is a GADT
• In the data declaration for ‘T’
Suggested fix: Use a standalone deriving declaration instead
|