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

[via libcxx-commits]

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@@ -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()
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inquisitivecrystal wrote:

I've added `[[nodiscard]]` tests for ranges that have them for other member functions. `adjacent_view`, `adjacent_transform_view`, and `elements_view` don't have any `[[nodiscard]]` tests. That seems like an oversight, but adding a set is probably out of scope.

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