libcxx initial import

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8

test/utilities/time/time.point/default_duration.pass.cpp

@@ -0,0 +1,26 @@
+//===----------------------------------------------------------------------===//
+//
+// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <chrono>
+
+// time_point
+
+// Test default template arg:
+
+// template <class Clock, class Duration = typename Clock::duration> 
+//   class time_point;
+
+#include <chrono>
+#include <type_traits>
+
+int main()
+{
+    static_assert((std::is_same<std::chrono::system_clock::duration,
+                   std::chrono::time_point<std::chrono::system_clock>::duration>::value), "");
+}