[phobos] Calling abort() on unhandled exception

[Andrei Alexandrescu]

Sean Kelly wrote:
> On Jul 29, 2010, at 8:21 PM, Walter Bright wrote:
>> Andrei Alexandrescu wrote:
>>> Walter Bright wrote:
>>>> I think we misunderstand each other. A file copy program that fails due to, say, the disk being full, should not produce a core dump. It should produce an error message like:
>>>>
>>>>  error: disk full
>>>>
>>>> An uncaught exception is NOT an invalid or crashed program in D.
>>> I think Sean talks about Throwable objects that are not Exception objects.
>>>
>> It's reasonable for seg fault exceptions to produce a core dump. It isn't for recoverable Exceptions, or for non-recoverable ones like out of memory.
> 
> At the moment, we don't differentiate between seg faults and non-recoverable errors.  Though seg faults are only thrown as exceptions on Windows which doesn't have core dumps anyway, as far as I know. For what it's worth, I was investigating this bug:
> 
> http://d.puremagic.com/issues/show_bug.cgi?id=4385

I see. Overall, my opinion is that regular exceptions that escape main(0 
should simply print their error message to stderr and exit(1). There 
should be no stack trace, abort(), core dump, or anything worse than 
that. Print the string and exit(1). Anything more will force most people 
to actually insert a try/catch in main to do the simple thing.

Andrei