Thank you, very useful! I ended up with this: 
if (eval {require autobox::universal;}) {
   autobox::universal->import('type');
} else {
   print 'Warning: Cannot locate autobox/universal.pm in @INC (you may
+ need to install autobox)' . "\n" .
          "In Strawberry Perl you can get autobox like this:\n" .
          "  1. from a Windows Administrator (elevated) command prompt
+...\n" .
          "  2. cd \\strawberry\\perl\\bin\n" .
          "  3. cpan autobox::universal\n\n";
   eval("sub type { return '?';}");
}

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In reply to Re^2: How can I test for the representation of an integer? by Dave Burton
in thread How can I test for the representation of an integer? by sm@sh

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