std::experi...:overaligned(3)

💖 std::experimental::overaligned_tag,std::experimental::overaligned 💖

okay so this is the std::experi...:overaligned(3) page from the C++ Standard Libary manual — yes, “Libary” is literally how the manual name is spelled in the source, I’m not fixing it 💅. It’s giving very niche C++ simd alignment lore, and honestly? iconic.

✨ NAME ✨

• std::experimental::overaligned_tag,std::experimental::overaligned — the page title/name, and the source repeats the same thing after the dash: std::experimental::overaligned_tag,std::experimental::overaligned. fr fr.

📋 Synopsis 📋

Defined in header <experimental/simd>:

template< std::size_t N >
struct overaligned_tag {};

That struct overaligned_tag {}; is marked (parallelism TS v2).

template< std::size_t N >
inline constexpr overaligned_tag<N> overaligned{};

Lowkey the whole point: this tag type indicates that the buffer of copy_from and copy_to is aligned to N. No cap, that’s the vibe.

🧮 Template parameters 🧮

• N — the alignment in bytes the memory access may assume. That’s the number you’re promising the universe, bestie ✨.

👀 See also 👀

• vector_aligned_tag — flag indicating alignment of the load/store address to vector.
• vector_aligned — alignment (parallelism TS v2) (class).
• element_aligned_tag — flag indicating alignment of the load/store address to element.
• element_aligned — alignment (parallelism TS v2) (class).

🫶 cute sign-off time: this page is from http://cppreference.com, dated 2024.06.10, and its slug/footer thing is std::experi...:overaligned(3). Go forth and align responsibly, bestie 💖✨🎀