std::experi...lt_resource(3)

okay so this is the std::experi...lt_resource(3) page, and it lives in the C++ Standard Libary manual 💅 (yes, that’s the manual name, iykyk). We’re talking about std::experimental::pmr::set_default_resource, and it’s giving very “small function, big responsibility” energy 👑

💖 NAME 💖

std::experimental::pmr::set_default_resource — std::experimental::pmr::set_default_resource

✨ Synopsis ✨

Defined in header <experimental/memory_resource>
memory_resource* set_default_resource( memory_resource* r  (library fundamentals TS)
) noexcept;

If r is not null, this sets the default memory resource pointer to r; otherwise, it sets the default memory resource pointer to new_delete_resource(). 💖

The default memory resource pointer is used by certain facilities when an explicit memory resource is not supplied. The initial default memory resource pointer is the return value of new_delete_resource(). 🌸

This function is thread-safe. Every call to set_default_resource synchronizes with (see std::memory_order) the subsequent set_default_resource and get_default_resource calls. 🔥

🫶 Return value 🫶

It returns the previous value of the default memory resource pointer. That’s the whole return value, bestie 🎀

👀 See also 👀

• get_default_resource — gets the default memory_resource (function)
• new_delete_resource — returns a static program-wide memory_resource that uses the global operator new and operator delete to allocate and deallocate memory (function)

🏷️ Category 🏷️

• Noindexed pages

xoxo, your Unix bestie 💖 — source/version: http://cppreference.com, date: 2024.06.10