1 files changed, 80 insertions, 0 deletions
diff --git a/test/std/containers/unord/unord.map/unorder.map.modifiers/emplace.pass.cpp b/test/std/containers/unord/unord.map/unorder.map.modifiers/emplace.pass.cpp
new file mode 100644
index 000000000000..5de74d2e6c92
--- /dev/null
+++ b/test/std/containers/unord/unord.map/unorder.map.modifiers/emplace.pass.cpp
@@ -0,0 +1,80 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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_map>
+
+// template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
+//           class Alloc = allocator<pair<const Key, T>>>
+// class unordered_map
+
+// template <class... Args>
+//     pair<iterator, bool> emplace(Args&&... args);
+
+#include <unordered_map>
+#include <cassert>
+
+#include "../../../Emplaceable.h"
+#include "min_allocator.h"
+
+int main()
+{
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    {
+        typedef std::unordered_map<int, Emplaceable> C;
+        typedef std::pair<C::iterator, bool> R;
+        C c;
+        R r = c.emplace(std::piecewise_construct, std::forward_as_tuple(3),
+                                                  std::forward_as_tuple());
+        assert(r.second);
+        assert(c.size() == 1);
+        assert(r.first->first == 3);
+        assert(r.first->second == Emplaceable());
+
+        r = c.emplace(std::pair<const int, Emplaceable>(4, Emplaceable(5, 6)));
+        assert(r.second);
+        assert(c.size() == 2);
+        assert(r.first->first == 4);
+        assert(r.first->second == Emplaceable(5, 6));
+
+        r = c.emplace(std::piecewise_construct, std::forward_as_tuple(5),
+                                               std::forward_as_tuple(6, 7));
+        assert(r.second);
+        assert(c.size() == 3);
+        assert(r.first->first == 5);
+        assert(r.first->second == Emplaceable(6, 7));
+    }
+#if __cplusplus >= 201103L
+    {
+        typedef std::unordered_map<int, Emplaceable, std::hash<int>, std::equal_to<int>,
+                            min_allocator<std::pair<const int, Emplaceable>>> C;
+        typedef std::pair<C::iterator, bool> R;
+        C c;
+        R r = c.emplace(std::piecewise_construct, std::forward_as_tuple(3),
+                                                  std::forward_as_tuple());
+        assert(r.second);
+        assert(c.size() == 1);
+        assert(r.first->first == 3);
+        assert(r.first->second == Emplaceable());
+
+        r = c.emplace(std::pair<const int, Emplaceable>(4, Emplaceable(5, 6)));
+        assert(r.second);
+        assert(c.size() == 2);
+        assert(r.first->first == 4);
+        assert(r.first->second == Emplaceable(5, 6));
+
+        r = c.emplace(std::piecewise_construct, std::forward_as_tuple(5),
+                                               std::forward_as_tuple(6, 7));
+        assert(r.second);
+        assert(c.size() == 3);
+        assert(r.first->first == 5);
+        assert(r.first->second == Emplaceable(6, 7));
+    }
+#endif
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+}