[Pdx-pm] $#ARGV

[Karl Stump]

$# returns the subscript of the last element of the
array, or one less than the length. So, -1 is very
possible when no command line parameters are
specified. 


--- Thomas Keller <kellert at ohsu.edu> wrote:

> Greetings,
> I'm running the debugger on a script that fails to
> launch (it's  
> called from another program) that I just got from
> someone and it  
> terminates line 24:
> 
> 23:	if ( $#ARGV < 0 ) {
> 24:		die $usage;
> 25:	}
> 
> I'm assuming the debugger terminates because $#ARGV
> is less than  
> zero, but I don't understand why.
> How can $#ARGV be less than 0? Have I forgotten
> something basic again?
> Thanks,
> 		
> Tom K
> kellert at ohsu.edu
> 4-2442
> 
> 
> > _______________________________________________
> Pdx-pm-list mailing list
> Pdx-pm-list at pm.org
> http://mail.pm.org/mailman/listinfo/pdx-pm-list


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