libcxx initial import

llvm-svn: 103490
diff --git a/libcxx/test/input.output/file.streams/fstreams/fstream.members/rdbuf.pass.cpp b/libcxx/test/input.output/file.streams/fstreams/fstream.members/rdbuf.pass.cpp
new file mode 100644
index 0000000..5cc55af
--- /dev/null
+++ b/libcxx/test/input.output/file.streams/fstreams/fstream.members/rdbuf.pass.cpp
@@ -0,0 +1,30 @@
+//===----------------------------------------------------------------------===//
+//
+// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <fstream>
+
+// template <class charT, class traits = char_traits<charT> >
+// class basic_fstream
+
+// basic_filebuf<charT,traits>* rdbuf() const;
+
+#include <fstream>
+#include <cassert>
+
+int main()
+{
+    {
+        std::fstream fs;
+        assert(fs.rdbuf());
+    }
+    {
+        std::wfstream fs;
+        assert(fs.rdbuf());
+    }
+}