1MakeMethods::Utility::RUesfe(r3)Contributed Perl DocumenMtaakteiMoenthods::Utility::Ref(3)
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NAME

6       Class::MakeMethods::Utility::Ref - Deep copying and comparison
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SYNOPSIS

9         use Class::MakeMethods::Utility::Ref qw( ref_clone ref_compare );
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11         $deep_copy = ref_clone( $original );
12         $positive_zero_or_negative = ref_compare( $item_a, $item_b );
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DESCRIPTION

15       This module provides utility functions to copy and compare arbitrary
16       references, including full traversal of nested data structures.
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18       REFERENCE
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20       The following functions are provided:
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22       ref_clone()
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24       Make a recursive copy of a reference.
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26       ref_compare()
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28       Attempt to recursively compare two references.
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30       If they are not the same, try to be consistent about returning a posi‐
31       tive or negative number so that it can be used for sorting.  The sort
32       order is kinda arbitrary.
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SEE ALSO

35       See Class::MakeMethods for general information about this distribution.
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37       See Ref for the original version of the clone and compare functions
38       used above.
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40       See Clone (v0.09 on CPAN as of 2000-09-21) for a clone method with an
41       XS implementation.
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43       The Perl6 RFP #67 proposes including clone functionality in the core.
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45       See Data::Compare (v0.01 on CPAN as of 1999-04-24) for a Compare method
46       which checks two references for similarity, but it does not provide
47       positive/negative values for ordering purposes.
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51perl v5.8.8                       2004-09-06      MakeMethods::Utility::Ref(3)
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