DateTime::Infinite.3pm

Langue: en

Version: 2010-06-15 (fedora - 01/12/10)

Section: 3 (Bibliothèques de fonctions)

NAME

DateTime::Infinite - Infinite past and future DateTime objects

SYNOPSIS

   my $future = DateTime::Infinite::Future->new;
   my $past   = DateTime::Infinite::Past->new;
 
 

DESCRIPTION

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.

BUGS

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.

METHODS

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.

AUTHOR

Dave Rolsky <autarch@urth.org> Copyright (c) 2003-2009 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.

SEE ALSO

datetime@perl.org mailing list

http://datetime.perl.org/