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Re^2: Quantum Weirdness and the Increment Operator

by barrachois (Pilgrim)
on Jun 25, 2004 at 02:54 UTC ( [id://369539]=note: print w/replies, xml ) Need Help??

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  1. or download this
     sub noop { 
   X::is_x( $_[0] );     # ok
   return $_[0];
 }
 X::is_x( noop($x) );    # not_ok
  2. or download this
     sub noop_lval :lvalue { $_[0] }

...

 $m=20; (++$m) + $m++;                   # 43

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