STD::_NODE_HANDLE(3)

💖 NAME

std::_Node_handle< _Key, _Value, _NodeAlloc > — bestie, it’s literally the Node handle type for maps. That’s the name, that’s the vibe, periodt. 💅

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✨ SYNOPSIS

Okay so this class inherits std::_Node_handle_common< _Value, _NodeAlloc >. Iconic lineage behavior. ✨

🎀 Public Types

• using allocator_type = __alloc_rebind< _NodeAlloc, _Value > — the allocator type alias, exactly as written, no cap.
• using key_type = _Key — the key type alias, slay.
• using mapped_type = typename _Value::second_type — the mapped type alias, keep it cute and keep it exact.

💅 Public Member Functions

• _Node_handle (_Node_handle &&) noexcept=default — constructor signature, defaulted and noexcept, exactly this.
• bool empty () const noexcept — a const noexcept method signature, preserved character for character.
• allocator_type get_allocator () const noexcept — another const noexcept method signature, right on.
• key_type & key () const noexcept — const noexcept method returning key_type &, yes bestie.
• mapped_type & mapped () const noexcept — const noexcept method returning mapped_type &, exactly as listed.
• operator bool () const noexcept — the const noexcept operator signature, no edits.
• _Node_handle & operator= (_Node_handle &&) noexcept=default — assignment operator signature, defaulted and noexcept, periodt.
• void swap (_Node_handle &__nh) noexcept — member swap, noexcept, exactly this signature.

🦋 Friends

• template<typename _Key2 , typename _Value2 , typename _ValueAlloc , typename _ExtractKey , typename _Equal , typename _Hash , typename _RangeHash , typename _Unused , typename _RehashPolicy , typename _Traits > class _Hashtable — the _Hashtable friend template, verbatim, don’t touch a single space.
• template<typename _Key2 , typename _Value2 , typename _KeyOfValue , typename _Compare , typename _ValueAlloc > class _Rb_tree — the _Rb_tree friend template, also verbatim.
• void swap (_Node_handle &__x, _Node_handle &__y) noexcept(noexcept(__x.swap(__y))) — the friend swap, with its noexcept(noexcept(__x.swap(__y))) energy fully intact. 🔥

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🌸 Detailed Description

Here’s the class template, exactly as given — including that little >" moment after the class name, because we do not “fix” the source, bestie:

template<typename _Key, typename _Value, typename _NodeAlloc>
    class std::_Node_handle< _Key, _Value, _NodeAlloc >" Node handle type
    for maps.

Node handle type for maps. That’s the whole summary, and it ate. 🫶

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👑 Author

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

This page’s source/version is libstdc++, and the date on it is Wed Oct 7 2026 — mwah, bye bestie! 🫶💜🎀