__GNU_PARALLEL::_EQUALFROMLESS(3cxx)

💅 NAME 💅

ok so bestie, gather round — this is __gnu_parallel::_EqualFromLess< _T1, _T2, _Compare >, and its whole personality is: constructs a predicate for equality from a strict weak ordering predicate. yeah. it takes a "less than" vibe and turns it into an "equal to" vibe. iconique. ✨

(it lives in the __gnu_parallel namespace, and the manual this page belongs to is libstdc++ — keep that in your back pocket, we'll circle back at the end 🫶)

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✨ SYNOPSIS ✨

#include <base.h>

Inherits std::binary_function< _T1, _T2, bool >. so it's literally in the binary_function family, no cap 💅

🎀 Public Types 🎀

• typedef _T1 first_argument_type — first_argument_type is the type of the first argument. yes bestie, it's giving exactly what it says on the tin.
• typedef bool result_type — result_type is the return type. and that return type is bool, obviously. 💖
• typedef _T2 second_argument_type — second_argument_type is the type of the second argument. the sequel. the encore. the second one. 😭

🌸 Public Member Functions 🌸

• _EqualFromLess (_Compare &__comp) — the constructor, and it takes a reference to your _Compare (__comp) so it can hold onto the strict-weak-ordering situation.
• bool operator() (const _T1 &__a, const _T2 &__b) — the actual call operator. you hand it __a and __b and it gives you back a bool. this is the main character of the whole class ngl 👑

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🦋 Detailed Description 🦋

template<typename _T1, typename _T2, typename _Compare>
    class __gnu_parallel::_EqualFromLess< _T1, _T2, _Compare >

ok so the full declaration is that. and the class's quoted description is, verbatim, "Constructs predicate for equality from strict weak ordering predicate." like — it's a wrapper, it takes your ordering thing and re-serves it as an equality thing. slay. 💅

heads up bestie: strict weak ordering is the whole deal here. this class builds equality out of it, so what "equal" even means is downstream of whatever your _Compare considers "less". that's the fact fr fr, don't come for me.

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⭐ Member Typedef Documentation ⭐

💜 typedef _T1 std::binary_function< _T1 , _T2 , bool >::first_argument_type

[inherited] — first_argument_type is the type of the first argument. inherited from the std::binary_function< _T1, _T2, bool > parent, so it's not even doing its own work here, it's just vibing with the family's definition. 👑

💜 typedef bool std::binary_function< _T1 , _T2 , bool >::result_type

[inherited] — result_type is the return type. also inherited. also just bool. also just vibing. 🫶

💜 typedef _T2 std::binary_function< _T1 , _T2 , bool >::second_argument_type

[inherited] — second_argument_type is the type of the second argument. third of three, all inherited, all accounted for. we love a complete set. ✨

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📜 Author 📜

generated automatically by Doxygen for libstdc++ from the source code. so like… nobody hand-wrote this, it's a machine's magnum opus, and honestly? it ate. 💀

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ok that's the whole page bestie, no skipped sections, no missing options, we kept every single crumb 🍓 and yeah — this lil' page is __gnu_parallel::_EqualFromLess< _T1, _T2, _Compare >(3cxx) from the libstdc++ manual, generated by Doxygen from the source code, and the footer doesn't hand us a date so I'm not gonna invent one for you 🙈 — k bye, go build something, periodt. 💖✨🎀