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 1.54
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12 my $future = DateTime::Infinite::Future->new;
13 my $past = DateTime::Infinite::Past->new;
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16 This module provides two DateTime subclasses,
17 "DateTime::Infinite::Future" and "DateTime::Infinite::Past".
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19 The objects are always in the "floating" timezone, and this cannot be
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23 The only constructor for these two classes is the "new" method, as
24 shown in the "SYNOPSIS". This method takes no parameters.
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26 All "get" methods in this module simply return infinity, positive or
27 negative. If the method is expected to return a string, it returns the
28 string representation of positive or negative infinity used by your
29 system. For example, on my system calling "$dt->year"> returns a number
30 which when printed appears either "Inf" or "-Inf".
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32 This also applies to methods that are compound stringifications, which
33 return the same strings even for things like "$dt->ymd" or
34 "$dt->iso8601"
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36 The object is not mutable, so the "$dt->set", "$dt->set_time_zone", and
37 "$dt->truncate" methods are all do-nothing methods that simply return
38 the object they are called with.
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40 Obviously, the "$dt->is_finite" method returns false and the
41 "$dt->is_infinite" method returns true.
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44 datetime@perl.org mailing list
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46 http://datetime.perl.org/
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49 There seem to be lots of problems when dealing with infinite numbers on
50 Win32. This may be a problem with this code, Perl, or Win32's IEEE math
51 implementation. Either way, the module may not be well-behaved on Win32
52 operating systems.
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54 Bugs may be submitted at
55 <https://github.com/houseabsolute/DateTime.pm/issues>.
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57 There is a mailing list available for users of this distribution,
58 <mailto:datetime@perl.org>.
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60 I am also usually active on IRC as 'autarch' on "irc://irc.perl.org".
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63 The source code repository for DateTime can be found at
64 <https://github.com/houseabsolute/DateTime.pm>.
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67 Dave Rolsky <autarch@urth.org>
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70 This software is Copyright (c) 2003 - 2020 by Dave Rolsky.
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72 This is free software, licensed under:
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74 The Artistic License 2.0 (GPL Compatible)
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76 The full text of the license can be found in the LICENSE file included
77 with this distribution.
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81perl v5.34.0 2021-07-22 DateTime::Infinite(3)