[libcxx-commits] [libcxx] [libc++] Implement P0429R9 `std::flat_map` (PR #98643)

[Louis Dionne via libcxx-commits]

================
@@ -0,0 +1,75 @@
+//===----------------------------------------------------------------------===//
+//
+// 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
+// UNSUPPORTED: no-exceptions
+
+// <flat_map>
+
+// flat_map(flat_map&& s);
+// If any member function in [flat.map.defn] exits via an exception, the invariant is restored.
+
+#include <algorithm>
+#include <cassert>
+#include <flat_map>
+#include <functional>
+#include <utility>
+#include <vector>
+
+#include "test_macros.h"
+//#include "MinSequenceContainer.h"
----------------
ldionne wrote:

```suggestion
```

https://github.com/llvm/llvm-project/pull/98643