When lexing in C11 mode, accept unicode character and string literals, per C11

6.4.4.4/1 and 6.4.5/1.

llvm-svn: 176780

1 files changed, 15 insertions, 0 deletions

diff --git a/clang/test/Lexer/string_concat.cpp b/clang/test/Lexer/string_concat.cpp
index 7e78a63e2f9..a7eb396fe9f 100644
--- a/clang/test/Lexer/string_concat.cpp
+++ b/clang/test/Lexer/string_concat.cpp
@@ -1,33 +1,48 @@
 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
+// RUN: %clang_cc1 -std=c11 -x c -fsyntax-only -verify %s
+
+#ifndef __cplusplus
+typedef __WCHAR_TYPE__ wchar_t;
+typedef __CHAR16_TYPE__ char16_t;
+typedef __CHAR32_TYPE__ char32_t;
+#endif
 
 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}}
+#ifdef __cplusplus
   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}}
+#endif
 
   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}}
+#ifdef __cplusplus
   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}}
+#endif
 
   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}}
+#ifdef __cplusplus
   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}}
+#endif
 
   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}}
+#ifdef __cplusplus
   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}}
+#endif
 }