1DateTime::Infinite(3) User Contributed Perl DocumentationDateTime::Infinite(3)
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6 DateTime::Infinite - Infinite past and future DateTime objects
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9 version 1.04
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12 my $future = DateTime::Infinite::Future->new();
13 my $past = DateTime::Infinite::Past->new();
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16 This module provides two DateTime.pm subclasses,
17 "DateTime::Infinite::Future" and "DateTime::Infinite::Past".
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19 The objects are in the "floating" timezone, and this cannot be changed.
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22 There seem to be lots of problems when dealing with infinite numbers on
23 Win32. This may be a problem with this code, Perl, or Win32's IEEE math
24 implementation. Either way, the module may not be well-behaved on Win32
25 operating systems.
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28 The only constructor for these two classes is the "new()" method, as
29 shown in the SYNOPSIS. This method takes no parameters.
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31 All "get" methods in this module simply return infinity, positive or
32 negative. If the method is expected to return a string, it return the
33 string representation of positive or negative infinity used by your
34 system. For example, on my system calling "year()" returns a number
35 which when printed appears either "inf" or "-inf".
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37 The object is not mutable, so the "set()", "set_time_zone()", and
38 "truncate()" methods are all do-nothing methods that simply return the
39 object they are called with.
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41 Obviously, the "is_finite()" method returns false and the
42 "is_infinite()" method returns true.
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45 datetime@perl.org mailing list
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47 http://datetime.perl.org/
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50 Dave Rolsky <autarch@urth.org>
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53 This software is Copyright (c) 2013 by Dave Rolsky.
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55 This is free software, licensed under:
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57 The Artistic License 2.0 (GPL Compatible)
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61perl v5.16.3 2017-08-02 DateTime::Infinite(3)