Implement full support for non-pointer types in custom allocators. This is for the unordered containers only. This work still needs to be done on the sequence containers.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@184635 91177308-0d34-0410-b5e6-96231b3b80d8

test/containers/unord/unord.multimap/find_const.pass.cpp

@@ -19,6 +19,8 @@
 #include <string>
 #include <cassert>
 
+#include "../../min_allocator.h"
+
 int main()
 {
     {
@@ -42,4 +44,28 @@ int main()
         i = c.find(5);
         assert(i == c.cend());
     }
+#if __cplusplus >= 201103L
+    {
+        typedef std::unordered_multimap<int, std::string, std::hash<int>, std::equal_to<int>,
+                            min_allocator<std::pair<const int, std::string>>> C;
+        typedef std::pair<int, std::string> P;
+        P a[] =
+        {
+            P(10, "ten"),
+            P(20, "twenty"),
+            P(30, "thirty"),
+            P(40, "fourty"),
+            P(50, "fifty"),
+            P(60, "sixty"),
+            P(70, "seventy"),
+            P(80, "eighty"),
+        };
+        const C c(std::begin(a), std::end(a));
+        C::const_iterator i = c.find(30);
+        assert(i->first == 30);
+        assert(i->second == "thirty");
+        i = c.find(5);
+        assert(i == c.cend());
+    }
+#endif
 }