Re: Side effect of passing matched values by reference

in reply to Side effect of passing matched values by reference

That is not a consequence of passing by reference, in fact. It is a consequence of aliasing. See perlsub for details. This would not happen if you use a different variable than @_:

sub foo
{
    my $x = $_[0];
    print "$x\n";
    $x =~ /(.)/;
    print "$x\n\n";
}
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Comment on Re: Side effect of passing matched values by reference Download Code

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Re^2: Side effect of passing matched values by reference by puterboy (Scribe) on Feb 21, 2013 at 18:23 UTC
Of course - that was the solution I used. My point was just that it wasn't obvious (at least to me) that $1 acts like a global variable in that way...	[reply]

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