# List::MoreUtils::XS - Provide compiled List::MoreUtils functions - perldoc - [phpMan]

## NAME
    [List::MoreUtils::XS](https://www.chedong.com/phpMan.php/perldoc/List%3A%3AMoreUtils%3A%3AXS/markdown) - Provide compiled [List::MoreUtils](https://www.chedong.com/phpMan.php/perldoc/List%3A%3AMoreUtils/markdown) functions

## SYNOPSIS
      use [List::MoreUtils::XS](https://www.chedong.com/phpMan.php/perldoc/List%3A%3AMoreUtils%3A%3AXS/markdown) (); # doesn't export anything
      use [List::MoreUtils](https://www.chedong.com/phpMan.php/perldoc/List%3A%3AMoreUtils/markdown) ':all'; # required to import functions

      my @procs = get_process_stats->fetchall_array;
      # sort by ppid, then pid
      qsort { $a->[3] <=> $b->[3] or $a->[2] <=> $b->[2] } @procs;
      while( @procs ) {
          my $proc = shift @procs;
          my @children = equal_range { $_->[3] <=> $proc->[2] } @procs;
      }

      my @left = qw(this is a test);
      my @right = qw(this is also a test);
      my %rlinfo = listcmp @left, @right;

      # on unsorted
      my $i = firstidx { $_ eq 'yeah' } @foo;
      # on sorted - always first, but might not be 'yeah'
      my $j = lower_bound { $_ cmp 'yeah' } @bar;
      # on sorted - any of occurrences, is surely 'yeah'
      my $k = bsearchidx { $_ cmp 'yeah' } @bar;

## DESCRIPTION
    [List::MoreUtils::XS](https://www.chedong.com/phpMan.php/perldoc/List%3A%3AMoreUtils%3A%3AXS/markdown) is a backend for [List::MoreUtils](https://www.chedong.com/phpMan.php/perldoc/List%3A%3AMoreUtils/markdown). Even if it's possible (because of user
    wishes) to have it practically independent from [List::MoreUtils](https://www.chedong.com/phpMan.php/perldoc/List%3A%3AMoreUtils/markdown), it technically depend on
    "[List::MoreUtils](https://www.chedong.com/phpMan.php/perldoc/List%3A%3AMoreUtils/markdown)". Since it's only a backend, the API is not public and can change without any
    warning.

## SEE ALSO
    [List::Util](https://www.chedong.com/phpMan.php/perldoc/List%3A%3AUtil/markdown), [List::AllUtils](https://www.chedong.com/phpMan.php/perldoc/List%3A%3AAllUtils/markdown)

## AUTHOR
    Jens Rehsack <rehsack AT cpan.org>

    Adam Kennedy <<adamk@cpan.org>>

    Tassilo von Parseval <<tassilo.von.parseval@rwth-aachen.de>>

## COPYRIGHT AND LICENSE
    Some parts copyright 2011 Aaron Crane.

    Copyright 2004 - 2010 by Tassilo von Parseval

    Copyright 2013 - 2017 by Jens Rehsack

    All code added with 0.417 or later is licensed under the Apache License, Version 2.0 (the
    "License"); you may not use this file except in compliance with the License. You may obtain a
    copy of the License at

     <http://www.apache.org/licenses/LICENSE-2.0>

    Unless required by applicable law or agreed to in writing, software distributed under the
    License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
    express or implied. See the License for the specific language governing permissions and
    limitations under the License.

    All code until 0.416 is licensed under the same terms as Perl itself, either Perl version 5.8.4
    or, at your option, any later version of Perl 5 you may have available.