Implement string suffixes from N3642
llvm-svn: 186956
diff --git a/libcxx/test/strings/basic.string.literals/literal1.pass.cpp b/libcxx/test/strings/basic.string.literals/literal1.pass.cpp
new file mode 100644
index 0000000..adc2615
--- /dev/null
+++ b/libcxx/test/strings/basic.string.literals/literal1.pass.cpp
@@ -0,0 +1,20 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+#include <string>
+#include <cassert>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+ using namespace std::literals;
+
+ std::string foo = ""s;
+#endif
+}