1 files changed, 33 insertions, 0 deletions
diff --git a/test/Lexer/string_concat.cpp b/test/Lexer/string_concat.cpp
new file mode 100644
index 000000000000..43782bce8c50
--- /dev/null
+++ b/test/Lexer/string_concat.cpp
@@ -0,0 +1,33 @@
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
+
+void f() {
+
+  const char* a = u8"abc" u"abc"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const char* b = u8"abc" U"abc"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const char* c = u8"abc" L"abc"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const char* d = u8"abc" uR"(abc)"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const char* e = u8"abc" UR"(abc)"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const char* f = u8"abc" LR"(abc)"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+
+  const char16_t* g = u"abc" u8"abc"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const char16_t* h = u"abc" U"abc"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const char16_t* i = u"abc" L"abc"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const char16_t* j = u"abc" u8R"(abc)"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const char16_t* k = u"abc" UR"(abc)"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const char16_t* l = u"abc" LR"(abc)"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+
+  const char32_t* m = U"abc" u8"abc"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const char32_t* n = U"abc" u"abc"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const char32_t* o = U"abc" L"abc"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const char32_t* p = U"abc" u8R"(abc)"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const char32_t* q = U"abc" uR"(abc)"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const char32_t* r = U"abc" LR"(abc)"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+
+  const wchar_t* s = L"abc" u8"abc"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const wchar_t* t = L"abc" u"abc"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const wchar_t* u = L"abc" U"abc"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const wchar_t* v = L"abc" u8R"(abc)"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const wchar_t* w = L"abc" uR"(abc)"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+  const wchar_t* x = L"abc" UR"(abc)"; // expected-error {{ unsupported non-standard concatenation of string literals }}
+}
+