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 |