std::undeclare_no_pointers(3)

✨ NAME ✨

std::undeclare_no_pointers — std::undeclare_no_pointers

okay so bestie, this is the std::undeclare_no_pointers(3) page from the C++ Standard Libary manual, and it’s literally the cleanup bestie to std::declare_no_pointers(). 💅

✨ Synopsis ✨

Defined in header <memory>

void undeclare_no_pointers( char *p, std::size_t n );  (since C++11)
                                                       (removed in C++23)

So this function unregisters a range that was earlier registered with std::declare_no_pointers(). That’s the whole plot. It existed since C++11 and got removed in C++23, so if you’re on newer C++ it’s giving “remember when?” 😭

🌸 Parameters 🌸

• p — pointer to the beginning of the range previously registered with std::declare_no_pointers.
• n — the number of bytes in the range, same value as previously used with std::declare_no_pointers.

💖 Return value 💖

(none) — literally no return value, bestie. 🫶

🫶 Exceptions 🫶

Throws nothing. Not a single exception. Iconic behavior. ✨

🌈 See also 🌈

• declare_no_pointers — declares that a memory area does not contain traceable pointers. (C++11) (function) (removed in C++23)

later, bestie 💅 — this cutie came from source http://cppreference.com, version/date 2024.06.10, and the manual page is std::undeclare_no_pointers(3). mwah 🎀