Really, without code or more than "it just disappears", it's just
conjecture what's happening. Can you post the code, or even better yet
a minimized case that reproduces it?
-Ross
On Jun 20, 2009, at 1:34 PM, Andrew Coppin wrote:
Alexander Dunlap wrote:
On Sat, Jun 20, 2009 at 8:29 AM, Andrew Coppin
<[email protected]> wrote:
OK, so here's an interesting problem...
I've been coding away all day, but now my program is doing
something slightly weird. For a specific input, it summarily
terminates. The registered exception handler does not fire. There
is no output to stdout or stderr indicating what the problem is.
It just *stops* half way through the printout.
Weirder: If I run it in GHCi, then GHCi itself terminates. (I
didn't think you could *do* that!)
I think you'll need to provide a bit more detail about what you're
doing in order for anyone to have anything to go off of. If you can
link to the source, that would help, or even give a summary of what
you're trying to do.
The program takes some text, parses it as a lambda calculus
expression, and prints it out again. Except, somewhere during the
variable uniqueness pass, the program just halts. For no defined
reason.
As you can see, nothing remotely unusual for a Haskell program to be
doing. And yet, the result is very unusual. (I.e., halting part-way
through some pure code without throwing an exception.)
Given that it doesn't appear to be a known bug (presumably somebody
would have said something by now if it was...), I think I'm going to
try upgrading GHC anyway, just for arguments' sake, and see if that
fixes it.
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