GHCi, version 6.10.1 crashes without message

[Heiko Studt]

PPS: Why does your mailinglist not set the Reply-To header?
@Roman Cheplyaka: Sorry for double mailing.

Am 13.01.2009 schrieb Roman Cheplyaka:

> > | f x y z = a + b*c + b + fun c 
> > |   where a = x * y + z
> > |         b = c * fun x
> > |         c = a * b
> > |         fun x = x * x + 1
> >
> > The query to die was "f 1 2 3".

> Your program loops for the following reason:
> to compute f, you need to compute c
> to compute c, you need to compute b
> to compute b, you need to compute c again!

> Haskell cannot solve equations (or, at least, not formulated in this
> way), so it understands definition of f as the rules to compute things
> like a, b, c. No wonder evaluation of f never terminates.

The problem is not it does not terminate. It terminates. GHCi terminates
inclusivly (maybe by simpathy? ;-)). As Chris Smith wrote it faults the
stack.

I tried to get the thing some smaller and therefor to the point, 
I should have done this before I assume:

| let f = c where {c = c}

at "f",

| let f = f in f

kills GHCi immidiatelly.

| let f 0 = f 0 in f 0

simply does not terminate (as it should be).



MFG (With friendly regards)
Heiko Studt

PS: Funny way for quitting with two keystroke. ;-)

-- 
Heiko Studt <studt at fmi.uni-passau.de>