__GNU_PARALLEL::_LOSERTREETRAITS(3)

💖 __gnu_parallel::_LoserTreeTraits< _Tp > — Library Functions Manual ✨

okay bestie, pull up a chair, we're reading a libstdc++ manpage together and honestly? it's giving niche but make it iconic 🎀

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🌸 NAME 🌸

__gnu_parallel::_LoserTreeTraits< _Tp > — the traits that decide whether your loser tree should be out here holding pointers or straight-up copies. lowkey a whole personality test for your data type 💅

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🦋 SYNOPSIS 🦋

#include <multiway_merge.h>

✨ Static Public Attributes ✨

• static const bool _M_use_pointer — True iff to use pointers instead of values in loser trees. no cap, that's the whole vibe check right there 🔥

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👑 Detailed Description 👑

template<typename _Tp>
    struct __gnu_parallel::_LoserTreeTraits< _Tp >

"Traits for determining whether the loser tree should use pointers or copies." — that's the official statement and we're standing by it 💖

so basically, the field "_M_use_pointer" is the little flag that decides whether the loser trees are gonna be passing around pointers, or whether they're gonna copy the actual values into the loser tree. and like… those are very different life choices, bestie 😭

the default behavior is to use pointers if the data type is 4 times as big as the pointer to it. that's the rule. that's the whole rule. not me thinking that's actually kind of a clean heuristic 🫶

and here's the slay part: specialize for your data type to customize the behavior. you have main character energy, you get to decide 🌈

Example:

template<> struct _LoserTreeTraits<int> { static const bool _M_use_pointer = false; };

template<> struct _LoserTreeTraits<heavyweight_type> { static const bool _M_use_pointer = true; };

look at that. int said "no pointers for me, I'm smol 💀" and heavyweight_type said "bestie I am TOO much for a copy, point at me 👑". both valid. both correct. iykyk.

🎀 Parameters 🎀

• _Tp — the type to give the loser tree traits for. yes, that's it, that's the parameter, go off ✨

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💜 Member Data Documentation 💜

⭐ template<typename _Tp> const bool __gnu_parallel::_LoserTreeTraits< _Tp >::_M_use_pointer [static] ⭐

True iff to use pointers instead of values in loser trees. The default behavior is to use pointers if the data type is four times as big as the pointer to it.

it's [static], so it's not per-object, it's a whole vibe the type carries around with it at all times 💅

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🌸 Author 🌸

Generated automatically by Doxygen for libstdc++ from the source code. not a human, just a little robot doing its thing 🤖💖

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and that's the page, bestie! 🦋 this one's from libstdc++, the manual is __gnu_para...aits< _Tp >(3) (the terminal truncates it, we know it's _LoserTreeTraits), and it was auto-generated by Doxygen — periodt. 🎀💅✨