STD::PMR_MEMORY_RESOURCE(3)

💖 std::pmr::memory_resource — the whole vibe 💖

okay bestie, welcome to the libstdc++ Library Functions Manual, section 3 (that's the "library functions" shelf of the man page library, iykyk). today we're talking about std::pmr::memory_resource, and honestly? it's giving allocator royalty. 👑

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✨ NAME ✨

std::pmr::memory_resource — Class memory_resource.

like, that's it, that's the class. iconic behavior fr. 💅

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🌸 SYNOPSIS 🌸

#include <memory_resource>

💡 plot twist: this class gets inherited by std::pmr::monotonic_buffer_resource and std::pmr::unsynchronized_pool_resource. so it's lowkey the mom friend of the polymorphic memory world. 🫶

🎀 Public Member Functions 🎀

memory_resource (const memory_resource &)=default
void * allocate (size_t __bytes, size_t __alignment=_S_max_align)
void deallocate (void *__p, size_t __bytes, size_t
    __alignment=_S_max_align)
bool is_equal (const memory_resource &__other) const noexcept
memory_resource & operator= (const memory_resource &)=default

lemme break that down for you, one by one:

• memory_resource (const memory_resource &)=default — the copy constructor, and it's =default so the compiler handles it, no drama, no custom code. 😌
• void * allocate (size_t __bytes, size_t __alignment=_S_max_align) — hand it some __bytes and a __alignment (which defaults to _S_max_align, she has a default, she's thoughtful like that) and it gives you back a void *. ✨
• void deallocate (void *__p, size_t __bytes, size_t __alignment=_S_max_align) — the reverse: give back the pointer __p, the __bytes, and the __alignment (again defaulting to _S_max_align). what goes around comes around bestie. 🦋
• bool is_equal (const memory_resource &__other) const noexcept — compares you to __other and returns a bool. and yes she's const and noexcept, because she's that girl. 💅
• memory_resource & operator= (const memory_resource &)=default — the copy assignment operator, also =default. compiler's got it, we don't lift a finger. 🙈

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👑 Detailed Description 👑

Class memory_resource.

that's the whole description, she said "less is more". 💜

⭐ Since ⭐

C++17

so like, if you're on anything older, bestie, it's not happening. sorry not sorry. 😭

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🌈 Author 🌈

Generated automatically by Doxygen for libstdc++ from the source code.

ngl it wasn't a human, it was a doc generator, and it ate. no cap. 🔥

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and that's the whole page!! footer said it's libstdc++, and it's page std::pmr::...ry_resource(3) — yes the title is truncated with dots, she's mysterious like that. 🧚 mwah, go allocate responsibly. 💖🎀🌸