Hi Monks!!

How can I pass optional parameters in a function? Here is my code. 

print "Testing optional parametrs\n";
prog( 1,,,2,3);
print "End\n";

sub prog {
    my($a,$b,$c,$d,$e) = @_ ;
    
    
    print "a = $a\n";
    print "b = $b\n";
    print "c = $c\n";
    print "d = $d\n";
    print "e = $e\n";
}

[download]
In the above programme I want to keep two parameters optional, i.e., if user does not want to pass 2nd and 3rd parameter, then he/she simply call it like prog(1,,,2,3). But when I am trying to use like this the program output is a=1 b=2 c=3 d= e= , but my desired output is a=1 b= c= d=2 e=3. I know that if I call the prog function as prog(1,"","",3,4), I can get the desired output, but for optional parameter I have to put "", which is not desirable. Can anyone please tell me how I can get the fucntionality?

Thanks in advance.
-Pijush

In reply to Optional parameter passing to a function?? by pijush

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