[EMAIL PROTECTED] wrote:
> I have a subroutine that, amongst other things, chops a scalar variable,
> $dir, passed to it as an argument. The problem is that I need $dir intact
> (ie
> unchopped) after calling said subroutine, but it has been altered by the
> chop. I
> can't figure out how to pass the value (or more precisely, a copy of the
> value) of $dir to subroutine so that it's operations do not alter what $dir
> originally contained. I've read Mr. Wall's Camelbook and saw lots of info on
> hard,
> soft, and symbolic references, but nothing (that I could understand) about
> passing a copy of variable to a subroutine and not the variable itself.
>
Create a temporary variable for it:
{
my $tmp = $dir;
chop $tmp;
my_sub( $tmp );
}
--
__END__
Just my 0.00000002 million dollars worth,
--- Shawn
"For the things we have to learn before we can do them, we learn by
doing them."
Aristotle
* Perl tutorials at http://perlmonks.org/?node=Tutorials
* A searchable perldoc is at http://perldoc.perl.org/
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