STD::_LIST_BASE(3)

💖 std::_List_base< _Tp, _Alloc > 💖

okay bestie, welcome to the Library Functions Manual, section 3 — this is the page for std::_List_base< _Tp, _Alloc >, and yes it's a real one, and yes it's basically the secret scaffolding behind your fave std::list. 🎀 let's get into it ✨

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🌸 NAME 🌸

std::_List_base< _Tp, _Alloc > — literally, for the actual explanation, go read bits/stl_deque.h's _Deque_base. that's it. that's the name section. iykyk 💅

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✨ SYNOPSIS ✨

#include <list>

and the plot twist: it's inherited (as [protected], so lowkey private-ish vibes) by:

• std::list< _Tp, polymorphic_allocator< _Tp > > [protected]
• std::list< __inp, __rebind_inp > [protected]
• std::list< _Tp, _Alloc > [protected]

👑 Public Types

• typedef _Alloc allocator_type — the allocator type, the moment.

🌈 Public Member Functions

• _List_base (_List_base &&)=default — the move constructor, defaulted, iconic.
• _List_base (_List_base &&__x, _Node_alloc_type &&__a) — move + an allocator, bestie edition.
• _List_base (_Node_alloc_type &&__a) — just an allocator, no notes.
• _List_base (_Node_alloc_type &&__a, _List_base &&__x) — allocator first, moved-from base second. order matters, don't be chaotic.
• _List_base (const _Node_alloc_type &__a) noexcept — a const allocator ref, and yes it's noexcept, we love a promise. 🫶
• void _M_clear () noexcept — clear it all out, noexcept, no drama.
• size_t _M_distance (const __detail::_List_node_base *__first, const __detail::_List_node_base *__last) const — distance between two __detail::_List_node_base pointers, const-correct and proud.
• const _Node_alloc_type & _M_get_Node_allocator () const noexcept — hand over the node allocator (const flavor), noexcept.
• _Node_alloc_type & _M_get_Node_allocator () noexcept — same but non-const, also noexcept.
• void _M_init () noexcept — set it up, noexcept.
• void _M_move_nodes (_List_base &&__x) — steal those nodes, respectfully.
• size_t _M_node_count () const — how many nodes we got, const.

⭐ Static Public Member Functions

• static size_t _S_distance (const __detail::_List_node_base *__first, const __detail::_List_node_base *__last) — the static version of distance. same pointers, no this, main character energy.

🧚 Protected Types

• typedef __gnu_cxx::__alloc_traits< _Node_alloc_type > _Node_alloc_traits
• typedef _Tp_alloc_traits::template rebind< typename_Node_traits::_Node >::other _Node_alloc_type
• using _Node_ptr
• typedef __list::_Node_traits< _Tp, typename _Tp_alloc_traits::pointer > _Node_traits
• typedef __gnu_cxx::__alloc_traits< _Tp_alloc_type > _Tp_alloc_traits
• typedef __gnu_cxx::__alloc_traits< _Alloc >::template rebind< _Tp >::other _Tp_alloc_type

that's the whole rebind-and-traits web, periodt. 🕸️✨

💜 Protected Member Functions

• void _M_dec_size (size_t __n) — decrement the size by __n.
• void _M_destroy_node (_Node_ptr __p) — destroy that node, __p.
• _Node_alloc_traits::pointer _M_get_node () — grab a node, returns a _Node_alloc_traits::pointer.
• size_t _M_get_size () const — read the size, const.
• void _M_inc_size (size_t __n) — increment the size by __n.
• void _M_put_node (_Node_ptr __p) noexcept — put that node back, noexcept.
• void _M_set_size (size_t __n) — hard-set the size to __n.

🦋 Protected Attributes

• _List_impl _M_impl — the one and only impl member. she's protected, she's holding everything together. 💅

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🍓 Detailed Description 🍓

template<typename _Tp, typename _Alloc>
class std::_List_base< _Tp, _Alloc >"See bits/stl_deque.h's _Deque_base for an explanation.

okay so — and i need you to stay calm — that stray " right before See is genuinely in there. not me fixing it. it's giving "the source generator had one job" 😭 we simply report the facts, fr fr. and the fact is: go read bits/stl_deque.h's _Deque_base for an explanation. that's the whole detailed description. she said read the other file. iconic, honestly.

⚠️ heads up bestie: this page does not explain the class itself — it explicitly points you at bits/stl_deque.h's _Deque_base for that. don't come for me, i'm just the messenger. 🫶

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🌟 Author 🌟

Generated automatically by Doxygen for libstdc++ from the source code. so no human to thank, just vibes and a generator. 💀

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and that's the whole page, babe! this lil writeup came straight out of the libstdc++ docs — footer says libstdc++, std::_List..., _Alloc >(3), manual section 3, Library Functions Manual. no cap, that's all she wrote. go read _Deque_base and slay. 💖✨🎀🦋