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Full Discussion: Bitwise negation
Top Forums Shell Programming and Scripting Bitwise negation Post 302117987 by Perderabo on Thursday 17th of May 2007 01:57:20 PM
Old 05-17-2007
Quote:
Originally Posted by dLloydm
There is one more thing I would like to verify. The course has the following question:
What do you think is the output of the following piece of code?
((x = 2#1101 & 2#110))
((y = ~x))
print - $y

The answer given is 11, as in decimal eleven or 2#1011.
From what I understand I think the answer should be -5 as in -2#101.
You are correct:
$ ((x = 2#1101 & 2#110))
$ ((y = ~x))
$ print - $y
-5
$
 

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DateTime::Format::Epoch::Unix(3pm)			User Contributed Perl Documentation			DateTime::Format::Epoch::Unix(3pm)

NAME
DateTime::Format::Epoch::Unix - Convert DateTimes to/from Unix epoch seconds SYNOPSIS
use DateTime::Format::Epoch::Unix; my $dt = DateTime::Format::Epoch::Unix->parse_datetime( 1051488000 ); # 2003-04-28T00:00:00 DateTime::Format::Epoch::Unix->format_datetime($dt); # 1051488000 my $formatter = DateTime::Format::Epoch::Unix->new(); my $dt2 = $formatter->parse_datetime( 1051488000 ); $formatter->format_datetime($dt2); DESCRIPTION
This module can convert a DateTime object (or any object that can be converted to a DateTime object) to the number of seconds since the Unix epoch. METHODS
Most of the methods are the same as those in DateTime::Format::Epoch. The only difference is the constructor. o new() Constructor of the formatter/parser object. It has no parameters. SUPPORT
Support for this module is provided via the datetime@perl.org email list. See http://lists.perl.org/ for more details. AUTHOR
Eugene van der Pijll <pijll@gmx.net> COPYRIGHT
Copyright (c) 2003 Eugene van der Pijll. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
DateTime datetime@perl.org mailing list perl v5.10.1 2007-12-03 DateTime::Format::Epoch::Unix(3pm)
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