From: Jon Harrop <jon@ffconsultancy.com>
To: caml-list@inria.fr
Subject: Shortest hanging
Date: Thu, 8 Sep 2005 04:50:49 +0100 [thread overview]
Message-ID: <200509080450.50695.jon@ffconsultancy.com> (raw)
Whilst trying to find the shortest OCaml program that hangs, I came up with:
let rec f() = f() in f();;
and:
let rec x = 1::x in x=x;;
Curiously, you can interrupt the former with C-C but not the latter when run
in the top level?! I guess the latter is stuck in polymorphic equality within
the run time system, where it doesn't check for interruption, whereas the
former cycles around inside the bytecode interpreter. But how come the signal
isn't raised inside compare_val?
--
Dr Jon D Harrop, Flying Frog Consultancy Ltd.
http://www.ffconsultancy.com
next reply other threads:[~2005-09-08 9:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-08 3:50 Jon Harrop [this message]
2005-09-08 9:53 ` [Caml-list] " Ville-Pertti Keinonen
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