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List: perl-beginners
Subject: deprecated idiom to simulate state variables
From: Luca Ferrari <fluca1978 () infinito ! it>
Date: 2017-01-10 8:04:00
Message-ID: CAKoxK+49MOhXR=2Koy_44x-7k=8KSUDN+g1-iPx6=vDfSrhfzQ () mail ! gmail ! com
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Hi all,
I guess it was in Modern Perl that I saw this deprecated idiom to
simulate state <http://perldoc.perl.org/functions/state.html>
variables:
sub foo{
my $initialized_once = 1 if 0;
...
}
Now, why is that working and initializing the variable the first time?
I mean, each time such row is evaluated the condition is 0 = false, so
the variable should not be initialized never.
What am I missing?
Thanks,
Luca
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