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Re: Abort computation on any message

• To: mathgroup at smc.vnet.net
• Subject: [mg124889] Re: Abort computation on any message
• From: Fred Simons <f.h.simons at tue.nl>
• Date: Sat, 11 Feb 2012 06:34:07 -0500 (EST)
• Delivered-to: l-mathgroup@mail-archive0.wolfram.com
• References: <201202101059.FAA00840@smc.vnet.net>

A very long time ago I think I saw something like the following:

Unprotect[Message];
Message[x___] /; (Print["Message"[x]]; True) := Abort[]

In[4]:= 1/0
During evaluation of In[4]:= Message[Power::infy,1/0]
Out[4]= $Aborted

I am not sure this trick will satisfy all your conditions.

Kind regards,

Fred Simons
Eindhoven University of Technology

On 10-2-2012 11:59, Szabolcs wrote:
> Messages are never fatal in Mathematica, regardless of whether they indicate errors, warnings or they're just informative.  Evaluations continue even after messages are generated.
>
> Question: How can I get Mathematica to abort immediately as soon as a message is generated?
>
> I need the following behaviour:
>
>    1. if a message would be printed, always abort.
>    2. if no message would be printed, don't abort.
>    3. do print the first message so I have a hint about what went wrong
>    4. the mechanism should work with parallel computations and should abort the full evaluation (i.e. main kernel and all parallel kernels)
>
> Difficulties are caused by the many ways to control message printing:  On/Off, Quiet, etc.  My code does use Quiet, but I am quieting only certain messages.
>
> I have already asked this here:
>
> http://mathematica.stackexchange.com/q/1512/12
>
> but the two answers I got (at the time of writing this) do not completely satisfy the requirements from above.
>
> I found an older MathGroup thread about this, which also doesn't solve the problem completely:
>
> http://forums.wolfram.com/mathgroup/archive/2005/Apr/msg00127.html
>
>

• References:
  • Abort computation on any message
    • From: Szabolcs <szhorvat@gmail.com>