[libcxx-commits] [libcxx] [libc++] Implement adjacent_view (PR #165089)

[Louis Dionne via libcxx-commits]

================
@@ -0,0 +1,82 @@
+//===----------------------------------------------------------------------===//
+//
+// 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
+
+// constexpr iterator(iterator<!Const> i)
+//      requires Const && convertible_to<iterator_t<V>, iterator_t<Base>>;
----------------
ldionne wrote:

```suggestion
//      requires Const && convertible_to<iterator_t<V>, iterator_t<const View>>;
```

https://github.com/llvm/llvm-project/pull/165089