__GNU_PBDS::DETAIL::TREE_NODE_METADATA_DISPATCH(3)

💅 __gnu_pbds::detail::tree_node_metadata_dispatch — Library Functions Manual

okay bestie, sit down, hydrate, and let's talk about a very niche little guy from the C++ standard library internals ✨

This one lives in the Library Functions Manual, section 3 — which, for the record, is the section for library calls, so you already know this is a real one. And the full name is a whole mouthful, so say it with me:

__gnu_pbds::detail::tree_node_metadata_dispatch< Key, Data, Cmp_Fn, Node_Update, _Alloc >

yes, that's the whole thing. no, I'm not shortening it for you. it's giving template parameters as a personality 🎀

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✨ NAME ✨

__gnu_pbds::detail::tree_node_metadata_dispatch< Key, Data, Cmp_Fn, Node_Update, _Alloc > — Tree node metadata dispatch.

like. that's the vibe. it dispatches tree node metadata. iconic behaviour, honestly 👑

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🦋 SYNOPSIS 🦋

#include <node_metadata_selector.hpp>

💖 Public Types 💖

• type — typedef tree_metadata_helper< __node_u, null_update >::type type

that's the one (1) public type, bestie. it's a typedef, it's named type, and it comes out of tree_metadata_helper< __node_u, null_update >. short, sweet, mysterious. we love a closed-off queen who reveals nothing else 💅

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🌸 Detailed Description 🌸

here's where we get the lore. this is a struct template, declared like this, exactly like this:

template<typename Key, typename Data, typename Cmp_Fn, template< typename
    Node_CItr, typename Const_Iterator, typename Cmp_Fn_, typename _Alloc_ >
    class Node_Update, typename _Alloc>
    struct __gnu_pbds::detail::tree_node_metadata_dispatch< Key, Data,
    Cmp_Fn, Node_Update, _Alloc >"Tree node metadata dispatch.

okay so first of all, look at those parameters. Key, Data, Cmp_Fn, then a whole template template parameter named Node_Update — which itself takes Node_CItr, Const_Iterator, Cmp_Fn_, and _Alloc_ — and then one more _Alloc at the end for good measure. that's five things. Node_Update is doing the absolute most and I respect it 😭

and the description? "Tree node metadata dispatch." that's it. that's the sentence. it knows what it is and it doesn't need to explain itself. main character energy fr fr 🫶

⚠️ heads up bestie — this lives under __gnu_pbds::detail, so it's internal machinery. it's not the polished public face of libstdc++, it's the backstage crew holding the whole tree structure together. don't go building your whole app on it and then acting surprised, iykyk 💀

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🎀 Author 🎀

Generated automatically by Doxygen for libstdc++ from the source code.

not a human. not a committee. not even a very tired maintainer at 3am. a tool made this page. Doxygen said "I got it" and hit publish 🧚

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🌈 SEE ALSO 🌈

no SEE ALSO section on this one, babe — this page is a lone wolf. it references <node_metadata_selector.hpp> in the synopsis and that's genuinely all the company it keeps 🦋

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okay that's the whole page, you ate it, you understood it, you're basically a libstdc++ internals girlie now 💖

this absolute baddie of a manpage was brought to you by libstdc++, and it came out of the source tree wearing that slightly-cropped header-and-footer look — you know the one, __gnu_pbds...e, _Alloc >(3) — because even the page titles have to get truncated sometimes. no date to report, no version number beyond libstdc++ itself. slay, stay hydrated, and don't touch detail namespaces in prod ✨💜