__GNU_PBDS::DETAIL::MAYBE_NULL_TYPE(3cxx)

🌸 __gnu_pbds::detail::maybe_null_type<Key, Mapped, _Alloc, Store_Hash> — 3cxx ✨

okay so this is a libstdc++ man page, section 3cxx, and it's a little header-only legend from the GNU C++ world 💜

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💖 NAME 💖

__gnu_pbds::detail::maybe_null_type< Key, Mapped, _Alloc, Store_Hash > — bestie, it's the base class for conditionally defining a static data member. that's the whole vibe. it exists so that a static data member can be defined only when it should be. iconic behavior honestly 🎀

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✨ SYNOPSIS ✨

#include <types_traits.hpp>

it's inherited by:

• __gnu_pbds::detail::types_traits< Key, Mapped, _Alloc, false >
• __gnu_pbds::detail::types_traits< Key, Mapped, _Alloc, Store_Hash >

so like, both of those types_traits flavors are its children. main character energy, fr fr 👑

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🦋 Detailed Description 🦋

template<typename Key, typename Mapped, typename _Alloc, bool Store_Hash>
struct __gnu_pbds::detail::maybe_null_type< Key, Mapped, _Alloc, Store_Hash >

the template signature is exactly that: Key, Mapped, _Alloc, and the bool Store_Hash, and the struct is __gnu_pbds::detail::maybe_null_type< Key, Mapped, _Alloc, Store_Hash >. no cap 🫶

and its description is literally the same sentence as the NAME section, which—honestly? consistent queen:

"Base class for conditionally defining a static data member."

that's the entire lore. it's a detail-namespace helper that defines a static data member only under the right condition, and that's what you're here for 💅

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🎀 Author 🎀

Generated automatically by Doxygen for libstdc++ from the source code. so nobody hand-wrote this one — the robot did it and it ate 🌈

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heads up bestie: this is detail namespace stuff, meaning it's internal plumbing, not the cute public API you'd normally reach for 🙈

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and that's the page!! 🍓 this lil doc came from libstdc++ in the 3cxx section, brought to you by Doxygen and the source code, and it's giving "automatically generated but still valid" 💀💖 see you in the next include bestie 😭🧚