[libcxx-commits] [libcxx] [libc++] Granularize `<optional>` (PR #206644)

[Nikolas Klauser via libcxx-commits]

================
@@ -0,0 +1,48 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP_OPTIONAL_HASH_H
+#define _LIBCPP_OPTIONAL_HASH_H
+
+#include <__config>
+#include <__cstddef/size_t.h>
+#include <__functional/hash.h>
+#include <__type_traits/remove_const.h>
+
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philnik777 wrote:

```suggestion
```

https://github.com/llvm/llvm-project/pull/206644