Re^2: on the fly reference to subroutine output

[tmharish]

in reply to Re: on the fly reference to subroutine output
in thread on the fly reference to subroutine output

Just as a note - this beautiful solution works cause Perl flattens arrays.

You can see that when you do:

sub2( [ sub1(), (), () ] );

[ISAI student]

Thank you all. It does the "magic".

[7stud]

How does 'flattening' come into play when there's only one array? I would think 'unwiding' of an array is what takes place.

[tmharish]

There are two arrays ( one inside the other ). The outer array is the anonymous array as shown below:

sub2( [ sub1() ] );
      ^  ^
      |  | 
      |  --------- Inner array 
      ------------ Outer array

sub 2 now gets the ref of the outer anonymous array which is flattened.