[libcxx-commits] [libcxx] [libc++] Implement `views::join_with` (PR #65536)

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@@ -0,0 +1,347 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
+
+// <ranges>
+
+// friend constexpr decltype(auto) iter_move(const iterator& x);
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huixie90 wrote:

can we have a test to test that it delicate's to underlying's `iter_move`? (i.e. it is not doing naive `std::move(*it)`)

https://github.com/llvm/llvm-project/pull/65536