Update libcxx/unord.set

test/sources/libcxx/UnorderedSetTests.h

@@ -230,6 +230,12 @@ LIBCXX_TEST_BEGIN(common_iterator_difference_type)
 #include "unord.set/common/iterator_difference_type.pass.cpp"
 LIBCXX_TEST_END
 
+#if TEST_STD_VER >= 23
+LIBCXX_TEST_BEGIN(extra_insert_range_ext)
+#include "unord.set/extra/insert_range_ext.pass.cpp"
+LIBCXX_TEST_END
+#endif
+
 #ifdef LIBCXX_TEST_FAILURE
 
 LIBCXX_TEST_BEGIN(spec_assert_bucket)

test/sources/libcxx/unord.set/extra/insert_range_ext.pass.cpp

@@ -0,0 +1,28 @@
+//===----------------------------------------------------------------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+//
+// Modified for https://github.com/morzhovets/momo project.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
+// Some fields in the test case variables are deliberately not explicitly initialized, this silences a warning on GCC.
+// ADDITIONAL_COMPILE_FLAGS(gcc-style-warnings): -Wno-missing-field-initializers
+
+// <set>
+
+// template<container-compatible-range<value_type> R>
+//   void insert_range(R&& rg); // C++23
+
+int main(int, char**) {
+  for_all_iterators_and_allocators<int, const int*>([]<class Iter, class Sent, class Alloc>() {
+    test_map_set_insert_range<std::unordered_set<int64_t, test_hash<int64_t>, test_equal_to<int64_t>, Alloc>, int, Iter, Sent>();
+  });
+
+  return 0;
+}