libcxx initial import

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/containers/unord/unord.map/unord.map.cnstr/range_size_hash_equal.pass.cpp b/test/containers/unord/unord.map/unord.map.cnstr/range_size_hash_equal.pass.cpp
new file mode 100644
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--- /dev/null
+++ b/test/containers/unord/unord.map/unord.map.cnstr/range_size_hash_equal.pass.cpp
@@ -0,0 +1,69 @@
+//===----------------------------------------------------------------------===//
+//
+// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. 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 InputIterator>
+//     unordered_map(InputIterator first, InputIterator last, size_type n,
+//                   const hasher& hf, const key_equal& eql);
+
+#include <unordered_map>
+#include <string>
+#include <cassert>
+
+#include "../../../iterators.h"
+#include "../../../NotConstructible.h"
+#include "../../../test_compare.h"
+#include "../../../test_hash.h"
+#include "../../../test_allocator.h"
+
+int main()
+{
+    {
+        typedef std::unordered_map<int, std::string,
+                                   test_hash<std::hash<int> >,
+                                   test_compare<std::equal_to<int> >,
+                                   test_allocator<std::pair<const int, std::string> >
+                                   > C;
+        typedef std::pair<int, std::string> P;
+        P a[] =
+        {
+            P(1, "one"),
+            P(2, "two"),
+            P(3, "three"),
+            P(4, "four"),
+            P(1, "four"),
+            P(2, "four"),
+        };
+        C c(input_iterator<P*>(a), input_iterator<P*>(a + sizeof(a)/sizeof(a[0])),
+            7,
+            test_hash<std::hash<int> >(8),
+            test_compare<std::equal_to<int> >(9)
+           );
+        assert(c.bucket_count() == 7);
+        assert(c.size() == 4);
+        assert(c.at(1) == "one");
+        assert(c.at(2) == "two");
+        assert(c.at(3) == "three");
+        assert(c.at(4) == "four");
+        assert(c.hash_function() == test_hash<std::hash<int> >(8));
+        assert(c.key_eq() == test_compare<std::equal_to<int> >(9));
+        assert(c.get_allocator() ==
+               (test_allocator<std::pair<const int, std::string> >()));
+        assert(!c.empty());
+        assert(std::distance(c.begin(), c.end()) == c.size());
+        assert(std::distance(c.cbegin(), c.cend()) == c.size());
+        assert(c.load_factor() == (float)c.size()/c.bucket_count());
+        assert(c.max_load_factor() == 1);
+    }
+}