__GNU_CXX::SELECT1ST(3cxx)

okay so this is the __gnu_cxx::select1st< _Pair >(3cxx) manual page — manual name is 3cxx, and yes bestie, we're in fancy C++ territory. 💅

🌸 NAME 🌸

• __gnu_cxx::select1st< _Pair > — An SGI extension .

✨ SYNOPSIS ✨

#include <functional>

It inherits std::_Select1st< _Pair >.

🎀 Public Types 🎀

• typedef _Pair argument_type — argument_type is the type of the argument
• typedef _Pair::first_type result_type — result_type is the return type

💅 Public Member Functions 💅

_Pair::first_type & operator() (_Pair &__x) const
template<typename _Pair2 > _Pair2::first_type & operator() (_Pair2 &__x)
    const
const _Pair::first_type & operator() (const _Pair &__x) const
template<typename _Pair2 > const _Pair2::first_type & operator() (const
    _Pair2 &__x) const

💖 Detailed Description 💖

The struct vibe is literally this, quote mark and all — iykyk:

template<class _Pair>
    struct __gnu_cxx::select1st< _Pair >"An SGI extension .

🦋 Member Typedef Documentation 🦋

Both of these are marked [inherited], bestie. no cap:

typedef _Pair  std::unary_function< _Pair , _Pair::first_type
       >::argument_type [inherited]
       argument_type is the type of the argument

typedef _Pair::first_type  std::unary_function< _Pair , _Pair::first_type
       >::result_type [inherited]
       result_type is the return type

👑 Author 👑

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

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💖 Cute sign-off time: source/version is libstdc++, the footer tag is __gnu_cxx::select1st< _Pair >(3cxx), and the original footer doesn't give an actual date — so I'm not inventing one, fr fr 😭🫶