clang/test/CXX/lex/lex.literal/lex.ext/p9.cpp

   1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
   2
   3 using size_t = decltype(sizeof(int));
   4 void operator ""_x(const wchar_t *, size_t);
   5
   6 namespace std_example {
   7
   8 int main() {
   9   L"A" "B" "C"_x;
  10   "P"_x "Q" "R"_y; // expected-error {{differing user-defined suffixes ('_x' and '_y') in string literal concatenation}}
  11 }
  12
  13 }