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DateTime::Infinite - Infinite past and future DateTime objects |
DateTime::Infinite - Infinite past and future DateTime objects
my $future = DateTime::Infinite::Future->new; my $past = DateTime::Infinite::Past->new;
This module provides two DateTime.pm subclasses,
DateTime::Infinite::Future and DateTime::Infinite::Past.
The objects are in the ``floating'' timezone, and this cannot be changed.
There seem to be lots of problems when dealing with infinite numbers on Win32. This may be a problem with this code, Perl, or Win32's IEEE math implementation. Either way, the module may not be well-behaved on Win32 operating systems.
The only constructor for these two classes is the new() method, as
shown in the SYNOPSIS. This method takes no parameters.
All ``get'' methods in this module simply return infinity, positive or
negative. If the method is expected to return a string, it return the
string representation of positive or negative infinity used by your
system. For example, on my system calling year() returns a number
which when printed appears either ``inf'' or ``-inf''.
The object is not mutable, so the set(), set_time_zone(), and
truncate() methods are all do-nothing methods that simply return
the object they are called with.
Obviously, the is_finite() method returns false and the
is_infinite() method returns true.
Dave Rolsky <autarch@urth.org>
Copyright (c) 2003-2005 David Rolsky. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
The full text of the license can be found in the LICENSE file included with this module.
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DateTime::Infinite - Infinite past and future DateTime objects |