What's missing from Phobos for Orbit (package manager)

[tn]

On Thursday, 14 February 2013 at 19:54:28 UTC, Jacob Carlborg 
wrote:
>> D has "any" (previously an overload of "canFind") as an 
>> algorithm that
>> finds whether at least one element of a range satisfies a 
>> condition,
>> otherwise writable as "!r.find!(a => condition).empty". The
>> convenience/mechanics/generality of the construct was enough
>> justification to add the algorithm. To claim that D already 
>> has the
>> negation of empty because one can write "r.any(a => true)" is, 
>> in my
>> opinion, an ill-posed argument.
>
> I just thought that we could add a default predicate to the 
> "any" function.

Yes for a default predicate, BUT I think it should be "a => a" 
(that is, identity function) instead of "a => true". Same default 
predicate should be applied to "all" function as well. This way 
the behavior with boolean ranges would match the behavior of 
"any" and "all" at least in Python and Matlab (and apparently 
also Ruby).