1Data::IEEE754(3) User Contributed Perl Documentation Data::IEEE754(3)
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6 Data::IEEE754 - Pack and unpack big-endian IEEE754 floats and doubles
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9 version 0.02
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12 use Data::IEEE754 qw( pack_double_be unpack_double_be );
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14 my $packed = pack_double_be(3.14);
15 my $double = unpack_double_be($packed);
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18 This module provides some simple convenience functions for packing and
19 unpacking IEEE 754 floats and doubles.
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21 If you can require Perl 5.10 or greater then this module is pointless.
22 Just use the "d>" and "f>" pack formats instead!
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24 Currently this module only implements big-endian order. Patches to add
25 little-endian order subroutines are welcome.
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28 This module optionally exports the following four functions:
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30 • pack_float_be($number)
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32 • pack_double_be($number)
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34 • unpack_float_be($binary)
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36 • unpack_double_be($binary)
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39 The code in this module is more or less copied and pasted from
40 Data::MessagePack's "Data::MessagePack::PP" module. That module was
41 written by Makamaka Hannyaharamitu. The code was then tweaked by Dave
42 Rolsky, so blame him for the bugs.
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45 Please submit bugs to the CPAN RT system at
46 http://rt.cpan.org/NoAuth/Bugs.html?Dist=Data-IEEE754 or via email at
47 bug-data-ieee754@rt.cpan.org.
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49 Bugs may be submitted through
50 <https://github.com/maxmind/Data-IEEE754/issues>.
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53 Dave Rolsky <autarch@urth.org>
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56 • Dave Rolsky <drolsky@maxmind.com>
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58 • Greg Oschwald <goschwald@maxmind.com>
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61 This software is Copyright (c) 2017 by MaxMind, Inc.
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63 This is free software, licensed under:
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65 The Artistic License 2.0 (GPL Compatible)
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69perl v5.34.0 2022-01-21 Data::IEEE754(3)