STD::REFERENCE_WRAPPER(3cxx)

👑 NAME

std::reference_wrapper< _Tp > — the primary class template for reference_wrapper, bestie. That's the whole vibe, no notes 💅

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✨ SYNOPSIS

#include <functional>

🌸 Public Types

• typedef _Tp type — the type it's wrapping, lowkey the whole point of the class 🫶

🎀 Public Member Functions

• the templated converting constructor — it's constexpr, and it's got a whole noexcept situation going on:

template<typename _Up , typename  = __not_same<_Up>, typename  =
    decltype(reference_wrapper::_S_fun(std::declval<_Up>()))> constexpr
    reference_wrapper (_Up &&__uref)
    noexcept(noexcept(reference_wrapper::_S_fun(std::declval< _Up >())))

• reference_wrapper (const reference_wrapper &)=default — the copy constructor, defaulted, does exactly what it says on the tin ✨
• constexpr _Tp & get () const noexcept — grabs you the reference back, constexpr and noexcept, iconic behaviour 🙈
• constexpr operator _Tp & () const noexcept — implicit conversion operator to _Tp &, same energy, constexpr, noexcept 💖
• the call operator operator() — forwards to whatever _Tp & is, with all the _Args...:

template<typename... _Args> constexpr __invoke_result< _Tp &, _Args...
    >::type operator() (_Args &&... __args) const
    noexcept(__is_nothrow_invocable< _Tp &, _Args... >::value)

• reference_wrapper & operator= (const reference_wrapper &)=default — copy assignment, defaulted, moving right along 🦋

⭐ Related Symbols

bestie read this part carefully: these are not member symbols. They live outside the class, they're just hanging out with it. Important distinction, no cap.

• template<typename _Tp > constexpr reference_wrapper< _Tp > ref (_Tp &__t) noexcept — denotes a reference should be taken to a variable 🌈
• template<typename _Tp > constexpr reference_wrapper< const _Tp > cref (const _Tp &__t) noexcept — denotes a const reference should be taken to a variable 🎀
• template<typename _Tp > constexpr reference_wrapper< _Tp > ref (reference_wrapper< _Tp > __t) noexcept — the std::ref overload to prevent wrapping a reference_wrapper 😭 (yes, so you can't wrap a wrapper, it's giving recursion protection)
• template<typename _Tp > constexpr reference_wrapper< const _Tp > cref (reference_wrapper< _Tp > __t) noexcept — the std::cref overload to prevent wrapping a reference_wrapper 💀

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🌼 Detailed Description

template<typename _Tp>
class std::reference_wrapper< _Tp >

Primary class template for reference_wrapper. Short, sweet, load-bearing. Periodt. 👑

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💜 Friends And Related Symbol Documentation

• template<typename _Tp > constexpr reference_wrapper< const _Tp > cref (const _Tp & __t) [related] — denotes a const reference should be taken to a variable 🌸
• template<typename _Tp > constexpr reference_wrapper< const _Tp > cref (reference_wrapper< _Tp > __t) [related] — std::cref overload to prevent wrapping a reference_wrapper 🧚
• template<typename _Tp > constexpr reference_wrapper< _Tp > ref (_Tp & __t) [related] — denotes a reference should be taken to a variable 🔥
• template<typename _Tp > constexpr reference_wrapper< _Tp > ref (reference_wrapper< _Tp > __t) [related] — std::ref overload to prevent wrapping a reference_wrapper ⭐

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📝 Author

Generated automatically by Doxygen for libstdc++ from the source code. Not me, not you, a robot did this. Slay, robot 🫶

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okay that's the whole page bestie, mwah 💋 — this was libstdc++'s std::reference_wrapper< _Tp >(3cxx) and the version line is right there in the footer, so go be a main character with it 💖🎀🦋