Empty instance

Progam

module T1 where
	
	data T = T1 | T2

	instance Eq T
	
	t :: T -> T -> Bool
	t = (==)

use ghci (Windows XP, 32 bit)

GHCi, version 7.6.3: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Prelude> :cd M:\Haskell
Prelude> :load "T1.hs"
[1 of 1] Compiling T1               ( T1.hs, interpreted )
Ok, modules loaded: T1.
*T1> t T1 T2
*** Exception: stack overflow
*T1> 

Trac metadata

Trac field	Value
Version	7.6.3
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	GHCi
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture