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substr oddity

by Ytrew (Pilgrim)
on Mar 04, 2005 at 05:14 UTC ( #436457=note: print w/replies, xml ) Need Help??

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  1. or download this
    use strict;
    use warnings;
    ...
    foo( substr($x,2,1) ); # crashes here
    print "Alive!\n"; # not reached
    sub foo {}
    
  2. or download this
    use strict;
    use warnings;
    ...
    foo($y); # no-op
    print "Alive\n"; # we get here just fine
    sub foo {}
    

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