__GNU_PARALLEL::__REPLACE_IF_SELECTOR(3)

💖 __gnu_parallel::__replace_if_selector< _It, _Op, _Tp > 💖

okay bestie, so this is a page from the Library Functions Manual, and it's all about one lil struct in libstdc++ that does the std::replace() thing but in parallel. it's a selector, which is basically the little helper that goes "you take this chunk, I'll take that chunk" when the parallel algorithms are dividing up work. it's giving backstage crew energy, honestly. 🎀

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✨ NAME ✨

__gnu_parallel::__replace_if_selector< _It, _Op, _Tp > — the std::replace() selector. no cap, that's the whole job description.

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✨ SYNOPSIS ✨

#include <for_each_selectors.h>

it Inherits from __gnu_parallel::__generic_for_each_selector< _It >, so it's lowkey part of the for-each-selector family tree. 🦋

🌸 Public Member Functions 🌸

• __replace_if_selector (const _Tp &__new_val) — the Constructor, babes.
• bool operator() (_Op &__o, _It __i) — the Functor execution. this is where the magic actually happens.

🌸 Public Attributes 🌸

• const _Tp & __new_val — the Value to replace with. iconic.
• _It _M_finish_iterator — _Iterator on last element processed; needed for some algorithms (e. g. std::transform()). she's the bookmark, periodt.

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✨ Detailed Description ✨

template<typename _It, typename _Op, typename _Tp>
struct __gnu_parallel::__replace_if_selector< _It, _Op, _Tp >

that's it. that's the struct. it's the "std::replace() selector." fr fr, it says so right there.

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✨ Constructor & Destructor Documentation ✨

template<typename _It, typename _Op, typename _Tp>
__gnu_parallel::__replace_if_selector< _It, _Op, _Tp >::__replace_if_selector (const _Tp & __new_val) [inline],  [explicit]

it's the Constructor. nothing mysterious, she just shows up and gets built. also note the [inline] and [explicit] — yes bestie, she is explicit, no accidental conversions around here 💅

Parameters

• __new_val — Value to replace with.

References __new_val.

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✨ Member Function Documentation ✨

template<typename _It, typename _Op, typename _Tp> bool
__gnu_parallel::__replace_if_selector< _It, _Op, _Tp >::operator() (_Op & __o, _It __i) [inline]

this is the Functor execution. the actual moment where she does the thing. also [inline], obviously, she's efficient like that. ✨

Parameters

• __o — Operator.
• __i — iterator referencing object.

References __new_val.

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✨ Member Data Documentation ✨

template<typename _It, typename _Op, typename _Tp> const _Tp&
__gnu_parallel::__replace_if_selector< _It, _Op, _Tp >::__new_val

Value to replace with. short and sweet, that's her whole personality.

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

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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()). note the [inherited] tag — she didn't come from this struct, she came from __generic_for_each_selector< _It >, so be nice to her. 💜

fr fr, _M_finish_iterator is inherited, not her own. don't @ me.

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✨ Author ✨

Generated automatically by Doxygen for libstdc++ from the source code. so like… nobody hand-wrote this, a robot did it, and honestly? the robot ate. 👑

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and that's the whole page, bestie! 💖 this little doc came from libstdc++ and the header up top just calls it __gnu_para..._Op, _Tp >(3) because even manpage headers run out of room sometimes 😭. mwah, go write some parallel replace code. 🫶✨🌸