[Israel.pm] Direct access to variables from sub

Gaal Yahas gaal at forum2.org
Sun Oct 2 06:22:20 PDT 2005


On Sun, Oct 02, 2005 at 02:54:42PM +0200, david istermann wrote:
> 9:   print keys %{hash_sub()};
> 
> Line 6 is now working thanks to Mikhael, and line 8 works with the
> help of Yosef.
> However, I cannot get the last line to print - of course, hash_sub()
> returns a HASH, not \HASH, on the other hand 'keys' wants a real hash
> and
>       keys hash_sub() ;
> does not even compile.

keys wants a hash, not a list. You need to use the anonymous
hashref+deref trick again:

     keys %{ { hash_sub() } };

-- 
Gaal Yahas <gaal at forum2.org>
http://gaal.livejournal.com/



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