[libcxx-commits] [libcxx] [libc++] Partially implement P2846R6: `reserve_hint` (PR #206385)

[Hristo Hristov via libcxx-commits]

================
@@ -149,6 +149,22 @@ class adjacent_transform_view : public view_interface<adjacent_transform_view<_V
   {
     return __inner_.size();
   }
+
+#  if _LIBCPP_STD_VER >= 26
+
+  [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr auto reserve_hint()
----------------
Zingam wrote:

We are working on adding `[[nodiscard]]`  to the library. There few views in `<ranges>` that have not been done yet. 
https://github.com/llvm/llvm-project/issues/172124
 Feel free to add test just for reserve_hint.
The adjacent_view patch was merged and the others should follow soon.

https://github.com/llvm/llvm-project/pull/206385