[libcxx-commits] [libcxx] [libc++][ranges] Implement `ranges::stride_view`. (PR #65200)

[Jakub Mazurkiewicz via libcxx-commits]

================
@@ -266,6 +266,13 @@ export namespace std {
       using std::ranges::views::zip;
     } // namespace views
 
+    // [range.stride], stride view
+    using std::ranges::stride_view;
+
+    namespace views {
+      using std::ranges::views::stride;
+    }
+
----------------
JMazurkiewicz wrote:

`std` module is available in C++20 as an extensions, we should add language guards:

```suggestion
#if _LIBCPP_STD_VER >= 23
    // [range.stride], stride view
    using std::ranges::stride_view;

    namespace views {
      using std::ranges::views::stride;
    }
#endif // _LIBCPP_STD_VER >= 23
```

https://github.com/llvm/llvm-project/pull/65200