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Re^2: reference , advantages?

by Sandy (Curate)
on Jun 30, 2011 at 18:00 UTC ( #912224=note: print w/ replies, xml ) Need Help??


in reply to Re: reference , advantages?
in thread reference , advantages?

Actually, if you assume that the <snip> has the proper declarations, the $fref is a reference to the returned string from the function and $$fref is the string.

Cleaned code

#!/usr/bin/perl use strict; use warnings; my $passed_new_date = new_date(); my $fref = \&new_date_append(); ###--- HERE is my REF ---### sub new_date { my ( $year, $month, $day ) = (localtime)[ 5, 4, 3 ]; sprintf( "%04d%02d%02d", ( $year += 1900 ), $month + 1, $day ); } sub new_date_append { return my $monster_date = "OhioS$passed_new_date"; } if ( $passed_new_date and $$fref ) { print $$fref,"\n"; }
Result
>perl ref.pl OhioS20110630


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