libcxx initial import

llvm-svn: 103490
diff --git a/libcxx/test/numerics/rand/rand.device/ctor.pass.cpp b/libcxx/test/numerics/rand/rand.device/ctor.pass.cpp
new file mode 100644
index 0000000..63bd256
--- /dev/null
+++ b/libcxx/test/numerics/rand/rand.device/ctor.pass.cpp
@@ -0,0 +1,38 @@
+//===----------------------------------------------------------------------===//
+//
+// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// class random_device;
+
+// explicit random_device(const string& token = "/dev/urandom");
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+    try
+    {
+        std::random_device r("wrong file");
+        assert(false);
+    }
+    catch (const std::system_error& e)
+    {
+    }
+    {
+        std::random_device r;
+    }
+    {
+        std::random_device r("/dev/urandom");;
+    }
+    {
+        std::random_device r("/dev/random");;
+    }
+}