__GNU_CXX::CONSTANT_BINARY_FUN(3)

🌸 NAME 🌸

__gnu_cxx::constant_binary_fun< _Result, _Arg1, _Arg2 > — bestie, it's an SGI extension 💅 (yes, for real, that's the whole vibe)

This is the __gnu_cxx one, ok? Not the plain std:: one. Note that down. The manual we're living in is the Library Functions Manual, and the whole thing is a libstdc++ situation ✨

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✨ SYNOPSIS ✨

#include <functional>

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🎀 Public Types

• typedef _Arg1 first_argument_type — the type of the first arg, named and proud, giving first-arg energy 👑
• typedef _Result result_type — the type that comes back out, aka the whole point of the operation
• typedef _Arg2 second_argument_type — and here's the second arg type, because a binary fun takes two, obviously 🦋

💖 Public Member Functions

• constant_binary_fun (const _Result &__v) — constructor moment 🌸 takes a const _Result & named __v and that's literally it
• const result_type & operator() (const _Arg1 &, const _Arg2 &) const — the call operator, returns a const result_type &, takes a const _Arg1 & and a const _Arg2 &, and it's const on the end because she's stable like that 💅

🌈 Public Attributes

• _Result _M_val — the one and only attribute, the actual value being held, the main character of this struct fr fr

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🌟 Detailed Description 🌟

template<class _Result, class _Arg1 = _Result, class _Arg2 = _Arg1>
    struct __gnu_cxx::constant_binary_fun< _Result, _Arg1, _Arg2 >

An SGI extension .

not me including that stray space before the period 😭 the original has it, so we keep it, no cap — every detail stays, always 💖

So basically: _Result is the template param, _Arg1 defaults to _Result, and _Arg2 defaults to _Arg1. Chain of defaults, iconic behaviour, we love to see it 🫶

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🦋 Author 🦋

Generated automatically by Doxygen for libstdc++ from the source code. Yes, a robot wrote this, not a human, and honestly? She ate 🤖✨

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And that's the whole page, bestie! libstdc++ is the source of this little legend, and it lives in the Library Functions Manual — no date on the footer, so nothing to report there, don't come for me 🙈 Go forth and be the constant binary fun you wish to see in the world 💜