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From: Chris Hecker <checker@d6.com>
To: caml-list@inria.fr
Subject: [Caml-list] assert caught by try with _
Date: Mon, 28 Jul 2003 11:34:58 -0700	[thread overview]
Message-ID: <4.3.2.7.2.20030728112622.02f3fef8@localhost> (raw)


Is the the "right thing" for assert to be caught by a try ... with _ -> ... 
block?  In other words, it seems like you want an assert to always blow up 
if asserts are turned on, not to fail silently when there's a try block 
somewhere higher up in the program.  Maybe it should be an option to have 
it fail immediately regardless of whether there's an exception handler 
around it?  The problem is that the workaround is to muck with every "with" 
expression to ensure you don't accidentally catch an assert, which is a 
huge pain and error prone, so it seems easier to have an option to just 
blow up.  The rationale is that asserts are meta, not part of the main 
program's flow.

I just got bitten by this and spent a couple hours trying to figure out why 
my program silently stopped working.

Thanks,
Chris

# let _ = try assert false with _ -> ();;
- : unit = ()

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             reply	other threads:[~2003-07-28 18:43 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-28 18:34 Chris Hecker [this message]
2003-07-28 19:08 ` Nicolas Cannasse
2003-07-29  2:37   ` Chris Hecker
2003-07-29  3:17     ` Jacques Garrigue
2003-07-29 21:01       ` Chris Hecker
2003-07-30 10:22         ` Yaron M. Minsky
2003-07-30 15:47           ` james woodyatt
2003-08-06 12:19         ` Michal Moskal
2003-08-06 14:50           ` William Lovas
2003-08-06 17:44             ` Michal Moskal
2003-07-30  5:44 ` Jason Hickey
2003-07-30  5:44 ` [Caml-list] unwind-protect Jason Hickey
2003-07-30 10:30   ` Yaron M. Minsky
2003-07-30 17:29     ` Didier Remy
2003-07-31  0:47       ` Jacques Garrigue
2003-07-30 14:44   ` William Lovas
2003-07-29 22:55 [Caml-list] assert caught by try with _ Martin Berger

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