in reply to return if 0

It has to do with the if condition being a constant. See this old node: Re^3: A cleaner way of scoping variables.

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Re^2: return if 0
by ikegami (Patriarch) on Jun 23, 2009 at 12:24 UTC

    No, it doesn't. 

    #!perl -l

sub test_c { $x=2; return 1 if 0;     }
sub test_v { $x=2; return 1 if $_[0]; }

print test_c();
print test_v(0);

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    If an optimisation changes Perl's behaviour, it would be a bug.

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