libcxx initial import

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/depr/depr.ios.members/streamoff.pass.cpp b/test/depr/depr.ios.members/streamoff.pass.cpp
new file mode 100644
index 0000000..d7c6d46
--- /dev/null
+++ b/test/depr/depr.ios.members/streamoff.pass.cpp
@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <ios>
+// 
+// class ios_base
+// {
+// public:
+//     typedef OFF_T streamoff;
+// };
+
+#include <ios>
+#include <type_traits>
+
+int main()
+{
+    static_assert((std::is_integral<std::ios_base::streamoff>::value), "");
+    static_assert((std::is_signed<std::ios_base::streamoff>::value), "");
+}