1 files changed, 14 insertions, 0 deletions
diff --git a/libcxx/test/containers/unord/unord.multiset/emplace_hint.pass.cpp b/libcxx/test/containers/unord/unord.multiset/emplace_hint.pass.cpp
index aff6ba7ccaf..e15316999be 100644
--- a/libcxx/test/containers/unord/unord.multiset/emplace_hint.pass.cpp
+++ b/libcxx/test/containers/unord/unord.multiset/emplace_hint.pass.cpp
@@ -16,6 +16,10 @@
 // template <class... Args>
 //     iterator emplace_hint(const_iterator p, Args&&... args);
 
+#if _LIBCPP_DEBUG2 >= 1
+#define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : std::exit(0))
+#endif
+
 #include <unordered_set>
 #include <cassert>
 
@@ -62,5 +66,15 @@ int main()
         assert(*r == Emplaceable(5, 6));
     }
 #endif
+#if _LIBCPP_DEBUG2 >= 1
+    {
+        typedef std::unordered_multiset<Emplaceable> C;
+        typedef C::iterator R;
+        C c1;
+        C c2;
+        R r = c1.emplace_hint(c2.begin(), 5, 6);
+        assert(false);
+    }
+#endif
 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
 }