Re: reduce metaoperator on an empty list

[Rod Adams]

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".



Seems to me that C<err> should have an implied C<try{...}> on it's lhs. 
Unless we spell that C<error>.

-- Rod Adams