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There's an typo in the code; the code block in the reduce statement should be

{ \($$a->{$b}) }
Also, when I tried the code as given (after fixing the above typo), I got the error:
% perl Can't call method "List::Util::reduce" on unblessed reference at rec_w line 9.
Here's the full code of the script that caused that error:
use strict; my %myhash; $myhash{bedrock}{flintstone}{fred} = 3; my $ref = pointer_to_element(\%myhash, qw(bedrock flintstone fred)); sub pointer_to_element { require List::Util; return List::Util::reduce { \($$a->{$b}) } \shift, @_; }
I couldn't figure out why the error, so I switched the code to
use List::Util 'reduce'; sub pointer_to_element { return reduce { \($$a->{$b}) } \shift, @_; }
and it worked great. Tres cool.

the lowliest monk

In reply to Re: Recursively walk a hash to get to an element by tlm
in thread Recursively walk a hash to get to an element by merlyn

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