1 files changed, 14 insertions, 0 deletions
diff --git a/clang/test/CXX/lex/lex.literal/lex.ext/p10.cpp b/clang/test/CXX/lex/lex.literal/lex.ext/p10.cpp
new file mode 100644
index 0000000..1b5d388
--- /dev/null
+++ b/clang/test/CXX/lex/lex.literal/lex.ext/p10.cpp
@@ -0,0 +1,14 @@
+// RUN: %clang_cc1 -std=c++11 -verify %s
+
+using size_t = decltype(sizeof(int));
+void operator "" wibble(const char *); // expected-warning {{user-defined literal suffixes not starting with '_' are reserved; no literal will invoke this operator}}
+void operator "" wibble(const char *, size_t); // expected-warning {{user-defined literal suffixes not starting with '_' are reserved; no literal will invoke this operator}}
+
+template<typename T>
+void f() {
+  // A program containing a reserved ud-suffix is ill-formed.
+  123wibble; // expected-error {{invalid suffix 'wibble'}}
+  123.0wibble; // expected-error {{invalid suffix 'wibble'}}
+  const char *p = ""wibble; // expected-error {{invalid suffix on literal; C++11 requires a space between literal and identifier}} expected-error {{expected ';'}}
+  const char *q = R"x("hello")x"wibble; // expected-error {{invalid suffix on literal; C++11 requires a space between literal and identifier}} expected-error {{expected ';'}}
+}