1 files changed, 46 insertions, 0 deletions
diff --git a/test/std/containers/unord/unord.multiset/empty.pass.cpp b/test/std/containers/unord/unord.multiset/empty.pass.cpp
new file mode 100644
index 000000000..8c65bc23b
--- /dev/null
+++ b/test/std/containers/unord/unord.multiset/empty.pass.cpp
@@ -0,0 +1,46 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <unordered_set>
+
+// class unordered_multiset
+
+// bool empty() const noexcept;
+
+#include <unordered_set>
+#include <cassert>
+
+#include "test_macros.h"
+#include "min_allocator.h"
+
+int main()
+{
+    {
+    typedef std::unordered_multiset<int> M;
+    M m;
+    ASSERT_NOEXCEPT(m.empty());
+    assert(m.empty());
+    m.insert(M::value_type(1));
+    assert(!m.empty());
+    m.clear();
+    assert(m.empty());
+    }
+#if TEST_STD_VER >= 11
+    {
+    typedef std::unordered_multiset<int, std::hash<int>, std::equal_to<int>, min_allocator<int>> M;
+    M m;
+    ASSERT_NOEXCEPT(m.empty());
+    assert(m.empty());
+    m.insert(M::value_type(1));
+    assert(!m.empty());
+    m.clear();
+    assert(m.empty());
+    }
+#endif
+}