NAME

Data::Cmp::StrOrNumeric - Compare two data structures, return -1/0/1 like cmp or <=>

VERSION

This document describes version 0.006 of Data::Cmp::StrOrNumeric (from Perl distribution Data-Cmp), released on 2018-12-06.

SYNOPSIS

 use Data::Cmp::StrOrNumeric qw(cmp_data);

 cmp_data(["a", "b", "c"], ["a", "b", "d"]);            # => -1
 cmp_data([0, 1, 10], [0, 1, 9]);                       # => 1

Contrasted with Data::Cmp:

 use Data::Cmp ();

 Data::Cmp::cmp_data(["a", "b", "c"], ["a", "b", "d"]); # => -1
 Data::Cmp::cmp_data([0, 1, 10], [0, 1, 9]);            # => -1

Perform numeric comparison with some tolerance:

 {
     local $Data::Cmp::StrOrNumeric::EPSILON = 1e-3;
     cmp_data(1, 1.1   );     # -1
     cmp_data(1, 1.0001);     #  0
     cmp_data([1], [1.0001]); #  0
 }

DESCRIPTION

VARIABLES

$EPSILON

Can be set to perform numeric comparison with some tolerance. See example in Synopsis.

FUNCTIONS

cmp_data

Usage:

 cmp_data($d1, $d2) => -1/0/1/2

This module's cmp_data() is just like Data::Cmp's except that when the two non-references being compared look like number (tested using Scalar::Util's looks_like_number(), they are compared with <=> instead of cmp. If none or only one of the non-reference is a number, cmp is used like in Data::Cmp.

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/Data-Cmp.

SOURCE

Source repository is at https://github.com/perlancar/perl-Data-Cmp.

BUGS

Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Data-Cmp

When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.

SEE ALSO

Data::Cmp

Data::Cmp::Numeric

AUTHOR

perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2018 by perlancar@cpan.org.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

cpanm Data::Cmp

perl -MCPAN -e shell
install Data::Cmp