Have the sort function simply return a lazy list object. When the [4]
is called on that object, it knows to do as much work as needed, and can
leave the rest as lazy.
--John
Dave Whipp dave-at-whipp.name |Perl 6| wrote:
Lets say I want to find the 5th smallest element in an array. I might
write:
@array.sort.[4];
How does the implementation of the sort function know that I just want
to 5th item (and thus choose an appropriate optimization)? Obviously
the function could be told that it's caller wants 5 values in list
context, but is there a way to get more info than that?
