Path: utzoo!utgpu!cunews!cognos!alanm
From: alanm@cognos.UUCP (Alan Myrvold)
Newsgroups: comp.lang.perl
Subject: More ** weirdness
Message-ID: <9077@cognos.UUCP>
Date: 23 Nov 90 15:57:44 GMT
References: <109161@convex.convex.com>
Reply-To: alanm@cognos.UUCP (Alan Myrvold)
Organization: Cognos Inc., Ottawa, Canada
Lines: 23

In article <109161@convex.convex.com> tchrist@convex.com (Tom Christiansen) writes:
>On a Sun, these expressions return these values:
>
>    (-1) ** 1 	 1
>    (-1) ** 2 	-1
>    (-1) ** 3 	 1
>    (-1) ** 4 	-1

well for me (on a Sun), it is exactly opposite (as I would expect).
What surprises me is the need for parentheses when using '**' with 'print'.  
On both PL 36 and 41,

      print ((-1) ** 2);       produces        1
      print (-1) ** 2;         produces       -1
      print (2 ** 3);          produces        8
      print 2 ** 3;            produces        8


---
Alan Myrvold          3755 Riverside Dr.     uunet!mitel!cunews!cognos!alanm
Cognos Incorporated   P.O. Box 9707          alanm@cognos.uucp
(613) 738-1440 x5530  Ottawa, Ontario       
                      CANADA  K1G 3Z4