in reply to Mystery state (possibly about whether an argument is numeric?) being maintained across calls to a sub
Can anyone shed some light on why this is happening?
Yes. You :) Use Devel::Peek on $arg in the subroutine before and after you assign to it. Eg:
sub xx { my $arg; Dump( $arg ); $arg = shift; Dump( $arg ); print "(" . ($arg & "") . ")\n"; }
With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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In the absence of evidence, opinion is indistinguishable from prejudice.
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Re^2: Mystery state (possibly about whether an argument is numeric?) being maintained across calls to a sub
by cheesestraws (Novice) on Jun 16, 2013 at 09:47 UTC |
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