# uname -srvm
HP-UX B.11.00 C 9000/712
# perl -v
This is perl, version 4.0
$RCSfile: perl.c,v $$Revision: 4.0.1.8 $$Date: 1993/02/05 19:39:30 $
Patch level: 36
Copyright (c) 1989, 1990, 1991, Larry Wall
Perl may be copied only under the terms of either the Artistic License
+ or the
GNU General Public License, which may be found in the Perl 4.0 source
+kit.
# perl -wle 'print 0**0'
pow: DOMAIN error
0
#
Thanks, but my code won't run with Perl 4 anyway. Have you got Perl 5 installed on that box? If it doesn't work, I'll have to avoid using 0**0 in my code.
jkruck:<rue> % uname -srvm
HP-UX B.11.00 U 9000/800
jkruck:<rue> % perl -v
This is perl, version 5.005_03 built for PA-RISC1.1
Copyright 1987-1999, Larry Wall
Perl may be copied only under the terms of either the Artistic License
+ or the
GNU General Public License, which may be found in the Perl 5.0 source
+kit.
Complete documentation for Perl, including FAQ lists, should be found
+on
this system using `man perl' or `perldoc perl'. If you have access to
+ the
Internet, point your browser at http://www.perl.com/, the Perl Home Pa
+ge.
jkruck:<rue> % perl -wle 'print 0**0'
1
Clearly, if you are doing some numerical analysis, and you know in your case that 0**0 = 1 is not the right way to go, you absolutely should be checking for zeroes and handling them appropriately.
Clearly, if you are doing some numerical analysis, and you know in your case that 0**0 = 1 is not the right way to go, you absolutely should be checking for zeroes and handling them appropriately.
I need it to be 1. The question is if Perl will always say 0**0 is 1, or if it does something different on other platforms. Because even mathematicians can't agree on what 00 should be, I wonder if Perl will always deal with it in the same way, or depending on system configuration.
