[phobos] Printing exceptions

[Sean Kelly]

Related question: should toString add the stack trace or not?

On Apr 7, 2010, at 8:39 AM, Andrei Alexandrescu wrote:

> At what point do you need to print exceptions in runtime? Is that if an exception leaves main()?
> 
> Andrei
> 
> On 04/07/2010 10:29 AM, Sean Kelly wrote:
>> The runtime can do one of two things: print exceptions according to a standard format and inject the msg field in the proper place or it can call toString.  Which should be done?  I prefer the former because it makes for a standard presentation and doesn't risk allocating memory needlessly, but I can see how people might do fancy stuff in toString that they expect to be used instead.  This came up because I'm adding a default stack trace handler, and the current behavior prints the stack trace twice, so something needs to change.
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