Allocators(3)

💖 NAME 💖

Bestie, welcome to Allocators(3) from the Library Functions Manual — this is the libstdc++ allocator lineup and it’s highkey giving “classes encapsulating memory operations” with full main character energy ✨ Vibe check: passed, it ate, no cap 💅

Allocators -

🦋 Classes 🦋

• class __gnu_cxx::__mt_alloc< _Tp, _Poolp > — okay so this is a fixed size (power of 2) allocator which - when compiled with thread support - will maintain one freelist per size per thread plus a 'global' one. Steps are taken to limit the per thread freelist sizes (by returning excess back to the 'global' list). Further details: http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt12ch32.html. " — yes, the stray quote is part of the source vibe, no cap 💀
• class __gnu_cxx::__pool_alloc< _Tp > — Allocator using a memory pool with a single lock. 🎀
• class __gnu_cxx::_ExtPtr_allocator< _Tp > — An example allocator which uses a non-standard pointer type. This allocator specifies that containers use a 'relative pointer' as it's pointer type. (See ext/pointer.h) Memory allocation in this example is still performed using std::allocator. " — another stray quote, keeping the lore intact 🙈
• class __gnu_cxx::array_allocator< _Tp, _Array > — An allocator that uses previously allocated memory. This memory can be externally, globally, or otherwise allocated. 🌸
• class __gnu_cxx::bitmap_allocator< _Tp > — Bitmap Allocator, primary template. 🔥
• class __gnu_cxx::debug_allocator< _Alloc > — A meta-allocator with debugging bits, as per [20.4]. This is precisely the allocator defined in the C++ Standard. Literally:
  • all allocation calls operator new
  • all deallocation calls operator delete. " — yep, another stray quote, she’s iconic 💅
• class __gnu_cxx::malloc_allocator< _Tp > — An allocator that uses malloc. This is precisely the allocator defined in the C++ Standard. Fr fr:
  • all allocation calls malloc
  • all deallocation calls free. " — stray quote number whatever, we keep it 🫶
• class __gnu_cxx::new_allocator< _Tp > — An allocator that uses global new, as per [20.4]. This is precisely the allocator defined in the C++ Standard. Ngl:
  • all allocation calls operator new
  • all deallocation calls operator delete. " — another one, slay 😭
• class __gnu_cxx::throw_allocator< T > — Allocator class with logging and exception control. ✨
• class std::allocator< _Tp > — The 'standard' allocator, as per [20.4]. Further details: http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt04ch11.html. " — the final stray quote, periodt 💖

🌈 Detailed Description 🌈

Classes encapsulating memory operations. That’s the whole detailed description, bestie — the way that this page wraps up memory operations is lowkey iconic, and we’re obsessed 🦋

👑 Author 👑

Generated automatically by Doxygen for libstdc++ from the source code. Not me thinking Doxygen is the main character here 🤖💖

Signed with love by libstdc++, dated 21 Apr 2009 — mwah 💋✨