__GNU_PARALLEL::__INNER_PRODUCT_SELECTOR(3)

💖 NAME 💖

__gnu_parallel::__inner_product_selector< _It, _It2, _Tp > — it's giving std::inner_product() selector, bestie. That's the whole vibe. ✨

This is a page from the libstdc++ manual, section 3 (library functions), and it's all about one lil' template struct that does the picking-and-choosing for a parallel inner product. 🫶

---

🌈 SYNOPSIS 🌈

#include <for_each_selectors.h>

Lowkey important: it inherits from __gnu_parallel::__generic_for_each_selector< _It >. So all that generic selector energy is already in the bloodline, periodt. 👑

✨ Public Member Functions ✨

• __inner_product_selector (_It __b1, _It2 __b2) — Constructor. Sets the whole thing up. 🎀
• template<typename _Op> _Tp operator() (_Op __mult, _It __current) — Functor execution. This is where it actually does the thing. 💅

🦋 Public Attributes 🦋

• _It __begin1_iterator — Begin iterator of first sequence.
• _It2 __begin2_iterator — Begin iterator of second sequence.
• _It _M_finish_iterator — _Iterator on last element processed; needed for some algorithms (e. g. std::transform()).

---

🌸 Detailed Description 🌸

template<typename _It, typename _It2, typename _Tp>
struct __gnu_parallel::__inner_product_selector< _It, _It2, _Tp >"std::inner_product() selector.

(Yes, that stray " is literally in the original. Not me being chaotic, I promise. 😭 We keep the facts exactly as they are.)

---

🎀 Constructor & Destructor Documentation 🎀

template<typename _It, typename _It2, typename _Tp>
__gnu_parallel::__inner_product_selector< _It, _It2, _Tp >::__inner_product_selector (_It __b1, _It2 __b2) [inline],  [explicit]

Constructor. It's [inline], it's [explicit], it's iconic. ✨

Parameters

• __b1 — Begin iterator of first sequence.
• __b2 — Begin iterator of second sequence.

References __begin1_iterator, and __begin2_iterator.

---

💜 Member Function Documentation 💜

template<typename _It, typename _It2, typename _Tp> template<typename _Op>
_Tp __gnu_parallel::__inner_product_selector< _It, _It2, _Tp >::operator() (_Op __mult, _It __current) [inline]

Functor execution. The main character moment of this whole struct, fr fr. 🔥

Parameters

• __mult — Multiplication functor.
• __current — iterator referencing object.

Returns

Inner product elemental __result.

References __begin1_iterator, and __begin2_iterator.

---

🧚 Member Data Documentation 🧚

template<typename _It, typename _It2, typename _Tp> _It
__gnu_parallel::__inner_product_selector< _It, _It2, _Tp >::__begin1_iterator

Begin iterator of first sequence.

Referenced by __inner_product_selector(), and operator()().

---

template<typename _It, typename _It2, typename _Tp> _It2
__gnu_parallel::__inner_product_selector< _It, _It2, _Tp >::__begin2_iterator

Begin iterator of second sequence.

Referenced by __inner_product_selector(), and operator()().

---

template<typename _It> _It __gnu_parallel::__generic_for_each_selector< _It >::_M_finish_iterator [inherited]

_Iterator on last element processed; needed for some algorithms (e. g. std::transform()).

Heads up bestie: this one is [inherited] — it comes from __generic_for_each_selector< _It >, not from this struct directly. 🌈

---

👑 Author 👑

Generated automatically by Doxygen for libstdc++ from the source code. No human wrote this, the robots did, and honestly? They ate. 💅

---

okay that's the whole page, mwah 🫶 this was a libstdc++ situation, section 3 of the manual, freshly harvested from the source code by Doxygen — go forth and inner-product in parallel, bestie, ily, bye!! 💖✨🎀