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Postings from May 2005
Dave Whipp wrote:
> Damian Conway wrote:
>
>> And what you'd need to write would be:
>>
>> $sum = (try{ [+] @values } err 0);
>
>
> The "err ..." idiom seems too useful to have it break in this case.
> Afterall, the purpose of "err 0" is to tell the stupid computer that I
> know what to do with the empty-array scenario.
>
> Feels like fine grained control over fatalness is needed (and not just
> per-function). For example "use fatal :void_context_only" would be nice,
> but wouldn't help in this case. This needs "use fatal :void_or_assign".
What it probably needs is: "use fatal :untested"
That is, die unless the failed result is in a boolean or "definedean" context.
This might even be a more reasonably dwimmy default, with 'use fatal :always'
being required to get "always throw the exception".
Damian
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