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Re^2: Variable assignment error checking

by NetWallah (Canon)
on Dec 15, 2013 at 01:51 UTC ( [id://1067199]=note: print w/replies, xml ) Need Help??

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  1. or download this
    my $oldval;

$val = func( $oldval=$val) || $oldval;
  2. or download this
      $val = func( $_=$val) || $_;
  3. or download this
        $val = do{ func( local $_=$val) || $_ };

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