p9.cpp revision 9fcce65e7e1307b5b8da9be13e4092d6bb94dc1d 
1// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
2
3using size_t = decltype(sizeof(int));
4void operator "" _x(const wchar_t *, size_t);
5
6namespace std_example {
7
8int 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}
14