1 files changed, 13 insertions, 0 deletions
diff --git a/clang/test/CXX/lex/lex.literal/lex.ext/p9.cpp b/clang/test/CXX/lex/lex.literal/lex.ext/p9.cpp
new file mode 100644
index 0000000..65e27b4
--- /dev/null
+++ b/clang/test/CXX/lex/lex.literal/lex.ext/p9.cpp
@@ -0,0 +1,13 @@
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
+
+using size_t = decltype(sizeof(int));
+void operator "" _x(const wchar_t *, size_t);
+
+namespace std_example {
+
+int main() {
+  L"A" "B" "C"_x;
+  "P"_x "Q" "R"_y; // expected-error {{differing user-defined suffixes ('_x' and '_y') in string literal concatenation}}
+}
+
+}