文件操作 - Util.pm

文件: /snap/core20/2769/usr/lib/x86_64-linux-gnu/perl-base/List/Util.pm

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# Copyright (c) 1997-2009 Graham Barr <gbarr@pobox.com>. All rights reserved.
# This program is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself.
#
# Maintained since 2013 by Paul Evans <leonerd@leonerd.org.uk>

package List::Util;

use strict;
use warnings;
require Exporter;

our @ISA        = qw(Exporter);
our @EXPORT_OK  = qw(
  all any first min max minstr maxstr none notall product reduce sum sum0 shuffle uniq uniqnum uniqstr
  head tail pairs unpairs pairkeys pairvalues pairmap pairgrep pairfirst
);
our $VERSION    = "1.50";
our $XS_VERSION = $VERSION;
$VERSION    = eval $VERSION;

require XSLoader;
XSLoader::load('List::Util', $XS_VERSION);

sub import
{
  my $pkg = caller;

# (RT88848) Touch the caller's $a and $b, to avoid the warning of
  #   Name "main::a" used only once: possible typo" warning
  no strict 'refs';
  ${"${pkg}::a"} = ${"${pkg}::a"};
  ${"${pkg}::b"} = ${"${pkg}::b"};

goto &Exporter::import;
}

# For objects returned by pairs()
sub List::Util::_Pair::key   { shift->[0] }
sub List::Util::_Pair::value { shift->[1] }

文件操作 - Util.pm

文件: /snap/core20/2769/usr/lib/x86_64-linux-gnu/perl-base/List/Util.pm

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