Greetings monks: I have the following questions concerning the behaviour of the following code: I am concerned with the reasons that that they produce the following output: 
#! /usr/bin/perl

for $num(0..42){

foo($num);

sub foo{

print "input to sub=@_\n";

if (@_== 0){
   print "test for zero is accurate\n";
   }
elsif(@_== 1){
   print "test for one is accurate\n";
   }
else{
   print "Composing mortals with immortal fire. \n";
    }
   }
}

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Produces the following output: 
input to sub=0
test for one is accurate
input to sub=1
test for one is accurate
input to sub=2
test for one is accurate

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Furthermore , using refs to the sub input as such : 
if (\@_ == 0) and if (\@_ ==1)

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generates: 
input to sub=0
Composing mortals with immortal fire.

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this is the same result for the entier range! Any input on the test and the nature of references would be greatly appreciated. Thanks Monks!

In reply to Subroutine Behaviour by dReKurCe

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