List::Util::XS(3perl)

💖 NAME 💖

List::Util::XS — the lil vibe check that tells you whether List::Util was compiled with a C compiler, bestie 🦋

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✨ SYNOPSIS ✨

use List::Util::XS 1.20;

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🫶 DESCRIPTION 🫶

Okay so picture this: List::Util::XS is that one friend you put in your dependency list when you absolutely need to know that List::Util got installed using a C compiler, and that the XS version is the one sitting pretty on your system. It's giving security blanket energy, ngl 💅

And here's the tea 🍓 — during installation, $List::Util::XS::VERSION will be set to undef if the XS was not compiled. Like, no XS? No version. The variable just ghosts you into the void. 😭

But wait, plot twist ✨ — starting with release 1.23_03, Scalar-List-Util is always using the XS implementation. Always always. Periodt. But because we love backwards compatibility in this house 🏠💜, we still ship the List::Util::XS module anyway — and all it does is just load List::Util. That's it. That's the whole job. Iconic behavior, honestly. 👑

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👀 SEE ALSO 👀

• Scalar::Util
• List::Util
• List::MoreUtils

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🎀 COPYRIGHT 🎀

Copyright (c) 2008 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.

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and that's the whole page, bestie!! 🌈✨ this was perl v5.44.0, dated 2026-10-17, straight outta the Perl Programmers Reference Guide — List::Util::XS(3perl), slay 💖🦋🎀