std::experi...e_expression(3)

🎀 NAME 🎀

This page is std::experi...e_expression(3) from the C++ Standard Libary manual — yes bestie, that's the manual name, and yes the title is literally truncated like that, iykyk 💅.

The name is std::experimental::const_where_expression — std::experimental::const_where_expression. That's the whole NAME vibe: same thing twice, slay.

🦋 Synopsis 🦋

Defined in header <experimental/simd>
template< class M, class V >           (parallelism TS v2)
class const_where_expression;

Okay so the class template const_where_expression abstracts the notion of selected elements of a given const object of arithmetic or data-parallel type. And “selected elements” means the elements data[i] for all i ∈ { j ∈ ℕ | j < M::size() ⋀ mask[j] } — literally that exact set, no cap 🫶.

🌸 Template parameters 🌸

• M — the mask type. That's it, that's the job 🎀.
• V — the value type M applies on.

Valid combinations of (M, V) are literally:

• (simd_mask<T, Abi>, const simd<T, Abi>)
• (simd_mask<T, Abi>, const simd_mask<T, Abi>)
• (bool, const T)

💅 Member functions 💅

These are the member functions, and I'm keeping every lil line:

• operator- — unary operators
• operator+ — public member function
• operator~
• copy_to — stores selected elements to address (public member function)

🍓 Example 🍓

This section is incomplete Reason: no example

Yeah bestie, no example yet 😭. The manual is literally telling on itself.

🧚 Category 🧚

• Todo no example

mwah 💋 this was std::experi...e_expression(3) from http://cppreference.com, version/date 2024.06.10. bye bestie, go slay some SIMD 🌈👑