std::extent...ynamic-index(3)

💖 std::extent...ynamic-index(3) 💖

okay bestie, welcome to a page from the C++ Standard Libary manual — yes, that’s the manual name, and we’re keeping it exactly as it appears. This one is all about std::extents::dynamic-index, and it’s giving “private exposition-only helper” energy, no cap.

✨ NAME ✨

std::extents::dynamic-index — std::extents::dynamic-index.

That’s it. That’s the name. Iconic, honestly.

🦋 Synopsis 🦋

So this thing is private: and it’s marked as exposition only, since C++23. Here’s the signature in all its exact glory:

private:

    template< class OtherIndexType >
(since C++23)
                                                              (exposition only*)
    static constexpr auto /*dynamic-index*/( rank_type i )
noexcept;

It returns the number of dynamic extents below index i.

And bestie, listen: if i <= rank() is false, the behavior is undefined. Not me testing that and pretending it’s fine. Do not. 💀

🌸 Parameters 🌸

• i — the index. That’s the whole parameter list, bestie.

🎀 Return value 🎀

The return value is the number of E[r] with r < i for which E[r] is a dynamic extent. Slay, that’s the fact.

🧚 Example 🧚

This section is incomplete. Reason: no example

Literal tumbleweed energy 😭 but that’s what the page says.

🦋 See also 🦋

This section is incomplete.

👑 Categories 👑

• Todo no example
• Todo without reason

Sign-off tea: this was from http://cppreference.com, dated 2024.06.10, and the page tag is std::extent...ynamic-index(3). bye bestie, mwah 💋💅