libcxx initial import

llvm-svn: 103490
diff --git a/libcxx/test/language.support/support.runtime/csetjmp.pass.cpp b/libcxx/test/language.support/support.runtime/csetjmp.pass.cpp
new file mode 100644
index 0000000..c57bab9
--- /dev/null
+++ b/libcxx/test/language.support/support.runtime/csetjmp.pass.cpp
@@ -0,0 +1,24 @@
+//===----------------------------------------------------------------------===//
+//
+// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test <csetjmp>
+
+#include <csetjmp>
+#include <type_traits>
+
+#ifndef setjmp
+#error setjmp not defined
+#endif
+
+int main()
+{
+    std::jmp_buf jb;
+    static_assert((std::is_same<__typeof__(std::longjmp(jb, 0)), void>::value),
+                  "std::is_same<__typeof__(std::longjmp(jb, 0)), void>::value");
+}